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This European Policy Analysis discusses the need to strengthen the institutions underpinning the euro and makes several policy recommendations. The Stability and Growth Pact must be reinforced, have greater automaticity and entail graduated sanctions. Fiscal surveillance must be improved through the establishment of a European Fiscal Stability Agency. Finally, the European Financial Stability Facility must be made permanent.
We build on previous work on operational performance evaluation of private equity portfolio companies as we are able to at least partially decrypt the black box consisting of restructuring tools these investors use and the corresponding impact on their portfolio companies. Beyond answering whether private equity improves operating efficiency we figure out which of the typical restructuring tools drive operating efficiency. Using a set of over 300 international leveraged buyout transactions in the last thirty years we find that while there is vast improvement in operational efficiency these gains vary considerably. Our top performing transactions are subject to strong equity incentives, frequent asset restructuring and tight control by the investor. Furthermore, investors experience has a positive and financial leverage a negative influence on operational performance.
Die Mehrheit der auf High Frequency Trading basierenden Strategien trägt zur Marktliquidität (Market-Making-Strategien) oder zur Preisfindung und Markteffizienz (Arbitrage-Strategien) bei. Eine ungeeignete Regulierung dieser Strategien oder eine Beeinträchtigung der zugrunde liegenden Geschäftsmodelle durch übermäßige Belastungen kann kontraproduktiv sein und unvorhergesehene Auswirkungen auf die Marktqualität haben. Allerdings muss jede missbräuchliche Strategie effektiv durch die Aufsichtsbehörden bekämpft werden.
This article discusses the effects of the countercyclical premium discussed in insurance supervision in the context of Solvency II. While the basic principle of introducing countercyclical elements into Solvency II is endorsed, the authors argue for a system based on market scenarios which would enforce stricter capital requirements in boom times and less strict requirements in times of crisis.
Im Rahmen einer Ereignisstudie am deutschen Kapitalmarkt wird untersucht, ob Adhoc- Mitteilungen korrekt eingesetzt werden. Die Ergebnisse belegen, daß Nemax-50-Unternehmen die Veröffentlichung potentiell positiver Meldungsinhalte bevorzugen und die Bekanntmachung negativer Mitteilungen verzögern. Außerdem veröffentlichen Nemax-50-Werte in positiven Marktphasen besonders viele Mitteilungen und einen besonders hohen Anteil an positiven Meldungsinhalten, um von der positiven Stimmung der Marktteilnehmer zu profitieren. Dax-30-Werte verhalten sich dagegen regelgerecht. Die Befunde belegen die Notwendigkeit einer stärkeren Überwachung des Veröffentlichungsverhaltens der Emittenten, die in 2002 am Neuen Markt gelistet waren.
We study the effect of weakening creditor rights on distress risk premia via a bankruptcy reform that shifts bargaining power in financial distress toward shareholders. We find that the reform reduces risk factor loadings and returns of distressed stocks. The effect is stronger for firms with lower firm-level shareholder bargaining power. An increase in credit spreads of riskier relative to safer firms, in particular for firms with lower firm-level shareholder bargaining power, confirms a shift in bargaining power from bondholders to shareholders. Out-of-sample tests reveal that a reversal of the reform's effects leads to a reversal of factor loadings and returns.
We study the effect of weakening creditor rights on distress risk premia via a bankruptcy reform that shifts bargaining power in financial distress toward shareholders. We find that the reform reduces risk factor loadings and returns of distressed stocks. The effect is stronger for firms with lower firm-level shareholder bargaining power. An increase in credit spreads of riskier relative to safer firms, in particular for firms with lower firm-level shareholder bargaining power, confirms a shift in bargaining power from bondholders to shareholders. Out-of-sample tests reveal that a reversal of the reform's effects leads to a reversal of factor loadings and returns.
Dieser Text fasst eine Studie zusammen, die für das Bundesministeriums für Ernährung, Landwirtschaft und Verbraucherschutz verfasst wurde und sich mit dem Kundennutzen von Anlageberatung auseinandersetzt. Das erhebliche Potenzial von interessenskongruenter Anlageberatung wird aufgezeigt und die aktuell geringe Leistungstransparenz im Markt kritisiert. Es wird empfohlen, ein standardisiertes Vokabular für Depotrisiken einzuführen und den Zugang aller Anleger zu leicht verständlichen und vergleichbaren Informationen zu historischem Depotrisiko und historischer Deporendite sicherzustellen. Die Studie fokussiert auf Wertpapierberatung und damit zuvorderst auf jene Teilmenge von Verbrauchern, die über Anlagevermögen verfügen. Die Grundideen zu Leistungstransparenz und standardisiertem Risikovokabular lassen sich jedoch auch z.B. auf den Alterssicherungsmarkt übertragen.
This paper shows that abnormal stock price returns around open market repurchase announcements are about four times higher in Germany than in the US (12% versus 3%). We hypothesize that this observation can be explained by country differences in repurchase regulation. Our empirical evidence indicates that German managers primarily buy back shares to signal an undervaluation of their firm. We demonstrate that the stringent repurchase process prescribed by German law attributes a higher credibility to such a signal than lax US regulations and thereby corroborate our hypothesis.
Prodigal Italy Greece Spain?
(2011)
Contrary to widely held perceptions, workers in the southern European states that are most afflicted by the sovereign debt crisis work hard. However, labor productivity in these countries lags far behind the EU average. Structural reforms to boost productivity should be at the top of the reform agenda.
Recent empirical research suggests that measures of investor sentiment have predictive power for future stock returns at intermediate and long horizons. Given that sentiment indicators are widely published, smart investors should exploit the information conveyed by the indicator and thus trigger an immediate market response to the publication of the sentiment indicator. The present paper is the first to empirically analyze whether this immediate response can be identified in the data. We use survey-based sentiment indicators from two countries (Germany and the US). Consistent with previous research we find predictability at intermediate horizons. However, the predictability in the US largely disappears after 1994. Using event study methodology we find that the publication of sentiment indicators affects market returns. The sign of this immediate response is the same as the sign of the intermediate horizon predictability. This is consistent with sentiment being related to mispricing but is inconsistent with the sentiment indicator providing information about future expected returns.
JEL-Classification: G12, G14
Structural positions are very common in investment practice. A structural position is defined as a permanent overweighting of a riskier asset class relative to a prespecified benchmark portfolio. The most prominent example for a structural position is the equity bias in a balanced fund that arises by consistently overweighting equities in tactical asset allocation. Another example is the permanent allocation of credit in a fixed income portfolio with a government benchmark. The analysis provided in this article shows that whenever possible, structural positions should be avoided. Graphical illustrations based on Pythagorean theorem are used to make a connection between the active risk/return and the total risk/return framework. Structural positions alter the risk profile of the portfolio substantially, and the appeal of active management – to provide active returns uncorrelated to benchmark returns and hence to shift the efficient frontier outwards – gets lost. The article demonstrates that the commonly used alpha – tracking error criterion is not sufficient for active management. In addition, structural positions complicate measuring managers’ skill. The paper also develops normative implications for active portfolio management. Tactical asset allocation should be based on the comparison of expected excess returns of an asset class to the equilibrium risk premium of the same asset class and not to expected excess returns of other asset classes. For the cases, where structural positions cannot be avoided, a risk budgeting approach is introduced and applied to determine the optimal position size. Finally, investors are advised not to base performance evaluation only on simple manager rankings because this encourages managers to take structural positions and does not reward efforts to produce alpha. The same holds true for comparing managers’ information ratios. Information ratios, in investment practice defined as the ratio of active return to active risk, do not uncover structural positions.
The effects of public policy programmes which aim at internalising spill-overs due to successful innovation are analysed in a sequential double-sided moral hazard double-sided adverse selection framework. The central focus lies in analysing their impact on contract design. We show that in our framework only ex post grants are a robust instrument for implementing the first-best situation, whereas the success of guarantee programmes, ex ante grants and some public-private partnerships depends strongly on the characteristics of the project: in certain cases they not only give no further incentives but even destroy contract mechanisms and so worsen the outcome.
Discussions of the international dimension of the global economic crisis have frequently focused on the build-up of large current account "imbalances" since the mid-1990s. This paper examines the extent to which the U.S. current account can be understood in a purely real open-economy DSGE model, were agents' perception of long-run growth evolves over time in response to changes in productivity. We first show that long-run growth forecasts based on
ltering actual productivity growth comove strongly with survey measures of expectations. Simulating the model, we
nd that including data on U.S. TFP growth and the world real interest rate can, under standard parametrizations of our model, explain the evolution of the U.S. current account quite closely. With household preference that allow positive labor supply e¤ects after favorable news of future income, we can also generate output movements in line with the data.
Management Summary: Conducted within the project “Economic Implications of New Models for Information Supply for Science and Research in Germany”, the Houghton Report for Germany provides a general cost and benefit analysis for scientific communication in Germany comparing different scenarios according to their specific costs and explicitly including the German National License Program (NLP).
Basing on the scholarly lifecycle process model outlined by Björk (2007), the study compared the following scenarios according to their accounted costs:
- Traditional subscription publishing,
- Open access publishing (Gold Open Access; refers primarily to journal publishing where access is free of charge to readers, while the authors or funding organisations pay for publication)
- Open Access self-archiving (authors deposit their work in online open access institutional or subject-based repositories, making it freely available to anyone with Internet access; further divided into (i) CGreen Open Access’ self-archiving operating in parallel with subscription publishing; and (ii) the ‘overlay services’ model in which self-archiving provides the foundation for overlay services (e.g. peer review, branding and quality control services))
- the NLP.
Within all scenarios, five core activity elements (Fund research and research communication; perform research and communicate the results; publish scientific and scholarly works; facilitate dissemination, retrieval and preservation; study publications and apply the knowledge) were modeled and priced with all their including activities.
Modelling the impacts of an increase in accessibility and efficiency resulting from more open access on returns to R&D over a 20 year period and then comparing costs and benefits, we find that the benefits of open access publishing models are likely to substantially outweigh the costs and, while smaller, the benefits of the German NLP also exceed the costs.
This analysis of the potential benefits of more open access to research findings suggests that different publishing models can make a material difference to the benefits realised, as well as the costs faced. It seems likely that more Open Access would have substantial net benefits in the longer term and, while net benefits may be lower during a transitional period, they are likely to be positive for both ‘author-pays’ Open Access publishing and the ‘over-lay journals’ alternatives (‘Gold Open Access’), and for parallel subscription publishing and self-archiving (‘Green Open Access’). The NLP returns substantial benefits and savings at a modest cost, returning one of the highest benefit/cost ratios available from unilateral national policies during a transitional period (second to that of ‘Green Open Access’ self-archiving). Whether ‘Green Open Access’ self-archiving in parallel with subscriptions is a sustainable model over the longer term is debateable, and what impact the NLP may have on the take up of Open Access alternatives is also an important consideration. So too is the potential for developments in Open Access or other scholarly publishing business models to significantly change the relative cost-benefit of the NLP over time.
The results are comparable to those of previous studies from the UK and Netherlands. Green Open Access in parallel with the traditional model yields the best benefits/cost ratio. Beside its benefits/cost ratio, the meaningfulness of the NLP is given by its enforceability. The true costs of toll access publishing (beside the buyback” of information) is the prohibition of access to research and knowledge for society.
Internationale Verkehrsflughäfen sind Einrichtungen, die eine zentrale ökonomische Bedeutung für das regionale Umfeld haben. Zusätzlich zu ihrer eigentlichen Funktion als Anbieter von Flugverkehrsleistungen werden Güter und Dienstleistungen angeboten, die in unterschiedlich starkem Ausmaß an die Verkehrsfunktion gekoppelt sind. Neben der Flughafengesellschaft und den Flugverkehrsgesellschaften tragen beispielsweise gastronomische Einrichtungen, Groß- und Einzelhändler, Luftfrachtspeditionen, Expressdienste, Reiseveranstalter, Flugsicherung, Zoll, Catering-Unternehmen zu den ökonomischen Aktivitäten des Flughafens bei. Die Palette der verkehrsbezogenen Aktivitäten am Flughafen reicht von der Betreuung der Passagiere über Reparatur- und Wartungsarbeiten für die Fluggesellschaften bis hin zur Abwicklung des Frachtverkehrs. ...
Comparison of MSACD models
(2003)
We propose a new framework for modelling time dependence in duration processes on financial markets. The well known autoregressive conditional duration (ACD) approach introduced by Engle and Russell (1998) will be extended in a way that allows the conditional expectation of the duration process to depend on an unobservable stochastic process which is modelled via a Markov chain. The Markov switching ACD model (MSACD) is a very flexible tool for description and forecasting of financial duration processes. In addition, the introduction of an unobservable, discrete valued regime variable can be justified in the light of recent market microstructure theories. In an empirical application we show that the MSACD approach is able to capture several specific characteristics of inter trade durations while alternative ACD models fail. JEL classification: C22, C25, C41, G14
We propose a new framework for modeling time dependence in duration processes. The ACD approach introduced by Engle and Russell (1998) will be extended so that the conditional expectation of the durations depends on an unobservable stochastic process which is modeled via a Markov chain. The Markov switching ACD model (MSACD) is a flexible tool for description of financial duration processes. The introduction of a latent information regime variable can be justified in the light of recent market microstructure theories. In an empirical application we show that the MSACD approach is able to capture specific characteristics of inter trade durations while alternative ACD models fail. JEL classification: C41, C22, C25, C51, G14
The effects of vocational training programmes on the duration of unemployment in Eastern Germany
(2005)
Vocational training programmes have been the most important active labour market policy instrument in Germany in the last years. However, the still unsatisfying situation of the labour market has raised doubt on the efficiency of these programmes. In this paper, we analyse the effects of the participation in vocational training programmes on the duration of unemployment in Eastern Germany. Based on administrative data for the time between the October 1999 and December 2002 of the Federal Employment Administration, we apply a bivariate mixed proportional hazards model. By doing so, we are able to use the information of the timing of treatment as well as observable and unobservable influences to identify the treatment effects. The results show that a participation in vocational training prolongates the unemployment duration in Eastern Germany. Furthermore, the results suggest that locking-in effects are a serious problem of vocational training programmes. JEL Classification: J64, J24, I28, J68
We propose a new framework for modelling the time dependence in duration processes being in force on financial markets. The pioneering ACD model introduced by Engle and Russell (1998) will be extended in a manner that the duration process will be accompanied by an unobservable stochastic process. The Discrete Mixture ACD framework provides us with a general methodology which puts the idea into practice. It is established by introducing a discrete-valued latent regime variable which can be justified in the light of recent market microstructure theories. The empirical application demonstrates its ability to capture specific characteristics of intraday transaction durations while alternative approaches fail. JEL classification: C41, C22, C25, C51, G14.
In recent methodological work the well known ACD approach, originally introduced by Engle and Russell (1998), has been supplemented by the involvement of an unobservable stochastic process which accompanies the underlying process of durations via a discrete mixture of distributions. The Mixture ACD model, emanating from the specialized proposal of De Luca and Gallo (2004), has proved to be a moderate tool for description of financial duration data. The use of one and the same family of ordinary distributions has been common practice until now. Our contribution incites to use the rich parameterized comprehensive family of distributions which allows for interacting different distributional idiosyncrasies. JEL classification: C41, C22, C25, C51, G14
We propose a new framework for modelling the time dependence in duration processes being in force on financial markets. The pioneering ACD model introduced by Engle and Russell (1998) will be extended in a manner that the duration process will be accompanied by an unobservable stochastic process. The Discrete Mixture ACD framework provides us with a general methodology which puts the idea into practice. It is established by introducing a discrete-valued latent regime variable which can be justified in the light of recent market microstructure theories. The empirical application demonstrates its ability to capture specific characteristics of intraday transaction durations while alternative approaches fail. JEL classification: C41, C22, C25, C51, G14.
In recent methodological work the well known ACD approach, originally introduced by Engle and Russell (1998), has been supplemented by the involvement of an unobservable stochastic process which accompanies the underlying process of durations via a discrete mixture of distributions. The Mixture ACD model, emanating from the specialized proposal of De Luca and Gallo (2004), has proved to be a moderate tool for description of financial duration data. The use of one and the same family of ordinary distributions has been common practice until now. Our contribution incites to use the rich parameterized comprehensive family of distributions which allows for interacting different distributional idiosyncrasies. JEL classification: C41, C22, C25, C51, G14.
Serial correlation in dynamic panel data models with weakly exogenous regressor and fixed effects
(2005)
Our paper wants to present and compare two estimation methodologies for dynamic panel data models in the presence of serially correlated errors and weakly exogenous regressors. The ¯rst is the ¯rst di®erence GMM estimator as proposed by Arellano and Bond (1991) and the second is the transformed Maximum Likelihood Estimator as proposed by Hsiao, Pesaran, and Tahmiscioglu (2002). Thereby, we consider the ¯xed e®ects case and weakly exogenous regressors. The ¯nite sample properties of both estimation methodologies are analysed within a simulation experiment. Furthermore, we will present an empirical example to consider the performance of both estimators with real data. JEL Classification: C23, J64
During the last decade, there has been a significant bias towards bond financing on emerging markets, with private investors relying on a bail-out of bonds by the international community. The bias has been a main cause for recent excessive fragility of international capital markets. The paper shows how collective action clauses in bonds contracts help to involve the private sector in risk sharing. It argues that such clauses, as a market based instrument, will raise spreads for emerging market debt and so help to correct a market failure towards excessive bond finance. Recent pressure by the IMF to involve the private sector is facing a conflict between the principle to honour existing contracts and the principle of equal treatment of bondholders.
Over the last four decades the literature on bond rating changes and its effects on security prices increased significantly with almost all studies not controlling for the respective reason for those. We therefore investigate the impact of rating events on the stock and the credit default swap (CDS) market incorporating rating reviews and rating changes together with the reason mentioned by the rating agency. Our results for the general effects are in line with prior findings but conditioning on the respective reason shows that the markets’ anticipation of rating actions is largely driven by events due to changes in firms’ operating performance. Furthermore, we provide empirical evidence for the hypothesis in prior literature that a surprise downgrade does not necessarily have to be bad news for stockholders when wealth is transferred from bondholders, but negative rating actions are always bad news for bondholders. The results additionally reveal increasing rating announcement effects by declining credit quality of firms for both rating reviews and changes. JEL Classification: D82, G14, G20. Keywords: Credit Default Swaps, Credit Ratings, Credit Rating Reasons, Event Study.
Der Weg in die Knechtschaft
(2011)
Die Marktwirtschaft beruht auf dem Prinzip, dass sich die Akteure im Rahmen des gesetzlichen Regelwerkes frei entfalten können. Hier liegt die entscheidende Stärke eines marktwirtschaftlichen, freiheitlichen Systems. Millionen von Individuen erwägen, welche Aktivitäten welche Chance eröffnen. Kein anderes System ist in der Lage, das Potential auszuschöpfen, das in unzähligen Individuen steckt. Der Markt ist nun einmal das beste "Entdeckungsverfahren", wie Hayek erkannte. Wer im Rahmen der Spielregeln Erfolg hat, darf nach diesen Prinzipien den Gewinn behalten, muss aber auch für den Misserfolg haften.
Großer Beifall
(2012)
Wie kann das Projekt gemeinsame Währung seine Glaubwürdigkeit wiederherstellen? Otmar Issing argumentiert, dass eine gemeinsame Währung ohne politische Union nur mit dem No-bail-out Prinzip funktionieren kann. Er warnt gleichzeitig davor, die politische Union nur als Mittel zur Krisenbewältigung voranzutreiben.
Asset securitisation as a risk management and funding tool : what does it hold in store for SMES?
(2005)
The following chapter critically surveys the attendant benefits and drawbacks of asset securitisation on both financial institutions and firms. It also elicits salient lessons to be learned about the securitisation of SME-related obligations from a cursory review of SME securitisation in Germany as a foray of asset securitisation in a bank-centred financial system paired with a strong presence of SMEs in industrial production. JEL Classification: D81, G15, M20
Although the commoditisation of illiquid asset exposures through securitisation facilitates the disciplining effect of capital markets on the risk management, private information about securitised debt as well as complex transaction structures could possibly impair the fair market valuation. In a simple issue design model without intermediaries we maximise issuer proceeds over a positive measure of issue quality, where a direct revelation mechanism (DRM) by profitable informed investors engages endogenous price discovery through auction-style allocation preference as a continuous function of perceived issue quality. We derive an optimal allocation schedule for maximum issuer payoffs under different pricing regimes if asymmetric information requires underpricing. In particular, we study how the incidence of uninformed investors at varying levels of valuation uncertainty and their function of clearing the market effects profitable informed investment. We find that the issuer optimises own payoffs at each valuation irrespective of the applicable pricing mechanism by awarding informed investors the lowest possible allocation (and attendant underpricing) that still guarantees profitable informed investment. Under uniform pricing the composition of the investor pool ensures that informed investors appropriate higher profit than uninformed types. Any reservation utility by issuers lowers the probability of information disclosure by informed investors and the scope of issuers to curtail profitable informed investment. JEL Classifications: D82, G12, G14, G23
As a sign of ambivalence in the regulatory definition of capital adequacy for credit risk and the quest for more efficient refinancing sources collateral loan obligations (CLOs) have become a prominent securitisation mechanism. This paper presents a loss-based asset pricing model for the valuation of constituent tranches within a CLO-style security design. The model specifically examines how tranche subordination translates securitised credit risk into investment risk of issued tranches as beneficial interests on a designated loan pool typically underlying a CLO transaction. We obtain a tranchespecific term structure from an intensity-based simulation of defaults under both robust statistical analysis and extreme value theory (EVT). Loss sharing between issuers and investors according to a simplified subordination mechanism allows issuers to decompose securitised credit risk exposures into a collection of default sensitive debt securities with divergent risk profiles and expected investor returns. Our estimation results suggest a dichotomous effect of loss cascading, with the default term structure of the most junior tranche of CLO transactions (“first loss position”) being distinctly different from that of the remaining, more senior “investor tranches”. The first loss position carries large expected loss (with high investor return) and low leverage, whereas all other tranches mainly suffer from loss volatility (unexpected loss). These findings might explain why issuers retain the most junior tranche as credit enhancement to attenuate asymmetric information between issuers and investors. At the same time, the issuer discretion in the configuration of loss subordination within particular security design might give rise to implicit investment risk in senior tranches in the event of systemic shocks. JEL Classifications: C15, C22, D82, F34, G13, G18, G20
This paper explores the various personal and intellectual links between Edmund Husserl, Rudolf and Walter Eucken. Our interdisciplinary approach gives an insight into Husserl’s transcendental phenomenology, Walter Eucken’s Ordoliberalism as well as in the interdependency between phenomenology and economics for which Rudolf Eucken’s philosophy of intellectual life plays an important role. Particular affiliations between phenomenology and economics can be found in the following topics: epistemology, the idea of man, the comprehension of liberty and the importance of legal or social orders, institutional rules and frameworks of regulations.
This paper analyzes the inherent dangers of paternalist economic policies associated with the newly established economic sub-disciplines of behavioral economics, economic happiness research and economic psychology. While the authors in general welcome these sub-disciplines for enriching and critically evaluating mainstream economics – especially their criticism of the Homo oeconomicus-heuristic is of great value contributing to a more realistic idea of man –, the political-economic implications as well as inherent risks of paternalist economic policies should be received with concern and thus be subject to a critical review. The paper is structured as follows: In the first step, we recapitulate Kahneman’s, Thaler/Sunstein’s, and Layard’s versions of paternalism pointing at similarities and differences alike. We contrast libertarian or soft paternalism of behavioral economics (Thaler/Sunstein) and economic psychology (Kahneman) with (Layard’s) happiness economics and its hard paternalism. In the second step, we analyze the political and economic implications and consequences of paternalism. We give an overview of the main points of criticism of paternalism from a constitutional economics perspective. The Ordnungs- vs. Prozesspolitik argument is discussed as well as epistemological, political-economic or idea of man arguments. The paper ends with some concluding remarks.
We propose a novel approach on how to estimate systemic risk and identify its key determinants. For US financial companies with publicly traded equity options, we extract option-implied value-at-risks and measure the spillover effects between individual company value-at-risks and the option-implied value-at-risk of a financial index. First, we study the spillover effect of increasing company risks on the financial sector. Second, we analyze which companies are mostly affected if the tail risk of the financial sector increases. Key metrics such as size, leverage, market-to-book ratio and earnings have a significant influence on the systemic risk profiles of financial institutions.
We study consumption-portfolio and asset pricing frameworks with recursive preferences and unspanned risk. We show that in both cases, portfolio choice and asset pricing, the value function of the investor/ representative agent can be characterized by a specific semilinear partial differential equation. To date, the solution to this equation has mostly been approximated by Campbell-Shiller techniques, without addressing general issues of existence and uniqueness. We develop a novel approach that rigorously constructs the solution by a fixed point argument. We prove that under regularity conditions a solution exists and establish a fast and accurate numerical method to solve consumption-portfolio and asset pricing problems with recursive preferences and unspanned risk. Our setting is not restricted to affine asset price dynamics. Numerical examples illustrate our approach.
This paper studies a consumption-portfolio problem where money enters the agent's utility function. We solve the corresponding Hamilton-Jacobi-Bellman equation and provide closed-form solutions for the optimal consumption and portfolio strategy both in an infinite- and finite-horizon setting. For the infinite-horizon problem, the optimal stock demand is one particular root of a polynomial. In the finite-horizon case, the optimal stock demand is given by the inverse of the solution to an ordinary differential equation that can be solved explicitly. We also prove verification results showing that the solution to the Bellman equation is indeed the value function of the problem. From an economic point of view, we find that in the finite-horizon case the optimal stock demand is typically decreasing in age, which is in line with rules of thumb given by financial advisers and also with recent empirical evidence.
Risiko muss wieder kosten
(2011)
This present comment suggests an amendment to the proposal for a directive of the European Parliament and of the Council, establishing a framework for the recovery and resolution of credit institutions and investment firms. The current proposal focuses on bail-in, but does not sufficiently take into account the pressure exerted on central bankers, supervisors and politicians by the fear of interbank contagion. The only way out of this hold-up type of situation can be found in bail-in bonds. Bail-in bonds are dedicated loss taking debt instruments, whose status of being first in line if it comes to default is clearly communicated from day one.
In dieser Notiz wird ein neues Konzept für eine europäische Einlagensicherung vorgeschlagen, welches den starken politischen Vorbehalten Rechnung trägt, die gegen eine Vergemeinschaftung der Haftung für Bankeinlagen bestehen. Das skizzierte drei-stufige Einlagensicherungsmodell führt existierende nationale Einlagensicherungseinrichtungen weiter, bietet einen europäischen Verlustausgleich und verhindert eine exzessive Risikoübernahme zu Lasten der internationalen Gemeinschaft.
On January 29, 2014, EU Commissioner Barnier published a draft law proposing a ban for proprietary trading by big banks in Europe. In this opinion piece, published in a German newspaper on 30 January, 2014, Jan Pieter Krahnen, who was a member of the Liikanen Commission, argues that the proposal could prove to be effective in preventing systemic risk.
Die große Herausforderung, um das systemische Risiko im Finanzsektor zu vermindern, besteht darin, kluge Finanzarchitektur zu etablieren, die gewährtleistet, dass ein verbindlicher Anteil von Bankanleihen außerhalb des Finanzsektors gehalten wird. Die Anleihegläubiger von außerhalb des Bankensektors müssen sich dadurch auszeichnen, dass sie kein Refinanzierungsrisiko haben, wenn sie eine plötzliche Verlussituation erleben.
The bail-in puzzle
(2011)
Under the current conditions of a global financial crisis, notably in Europe’s banking industry, the governance role of bond markets is defunct. In fact, investors have understood that bank debt will almost always be rescued with taxpayers’ money. The widespread practice of government-led bank bailouts has thus severely corrupted the bond market, leading to the underestimation of risk and, as a consequence, the destruction of market discipline. Any feasible solution to the bank-debt-is-too-cheap problem will have to re-install true default risk for bank bond holders.
With this paper, I propose a simple asset pricing model that accounts for the influence from social interaction. Investors are assumed to make up their mind about an asset’s price based on a forecasting strategy and its past profitability as well as on the contemporaneous expectations of other market participants. Empirically analysing stocks of the DAX30 index, I provide evidence that social interaction rather destabilises financial markets. Based on my results, I state that at least, it does not have a stabilising effect.
An analyst who works in Germany is more likely to publish a high (low) price target regarding a DAX30 stock if other Germany based analysts are also optimistic (pessimistic) about the same stock. This finding is not biased by the fact that DAX30 companies are headquartered in Germany. In times of bull markets, price targets of analysts who regularly exchange their opinion are higher correlated compared to other analysts. This effect vanishes in a bearish market environment. This suggests that communication among analysts indeed plays an important role. However, analysts’ incentives induce them not to deviate too much from the overall average during an economic downturn.
In this paper, I analyse the reciprocal social influence on investment decisions within an international group of roughly 2000 mutual fund managers that invested in companies of the DAX30. Using a robust estimation procedure, I provide empirical evidence that in the average a fund manager puts 0.69% more portfolio weight on a particular stock, if other fund managers increase the corresponding position by 1%. The dynamics of this influence on portfolio weights suggest that fund managers adjust their behaviour according to the prevailing market situation and are more strongly influenced by others in times of an economic downturn. Analysing the working locations of the fund managers, I conclude that more than 90% of the magnitude of influence is due to pure observation. While this form of influence varies much in time, the magnitude of influence resulting from the exchange of opinion is more or less constant.
This paper shows that a capital budgeting process in which the division manager is required to engage in personally costly influence activities prior to a project approval has beneficial incentive effects: It provides the manager with incentives to acquire costly information about project prospects and helps to elicit the revelation of the acquired information. As a consequence, imposing influence costs on the manager can lead to improved capital allocations. The optimal level of influence costs, chosen by the firm, trades off ex ante incentives for information acquisition against efficient use of the acquired information ex post.
Das vornehmliche Ziel der OGAW Richtlinien ist es einen gemeinsamen europäischen Markt für Investment-Dienstleistungen auf Basis wohldefinierten Qualitätsstandards zu erreichen. Ein grenzüberschreitender Vertrieb eröffnet die Möglichkeit der Ausweitung von Geschäftsaktivitäten auf neue wirtschaftlich attraktive Absatzmärkte. Die Stellungnahme kommentiert die im Gesetzesentwurf vorgeschlagenen regulatorischen Instrumente vor dem Hintergrund verschiedener gegebener Kriterien.
Die „Rente mit 63“ hat wieder einmal den Blick auf den Renteneintritt gerichtet. In der öffentlichen Debatte werden dabei zwei Ereignisse regelmäßig vermischt: das Ende des Arbeitslebens und der Beginn der Rentenzahlung. Dabei müssen beide nicht unmittelbar aufeinander folgen. Unter bestimmten Umständen kann es finanziell attraktiv sein, die staatliche Rente nicht sofort nach dem Ausstieg aus dem Erwerbsleben zu beantragen, sondern die Ausgaben bis zum späteren Rentenbeginn durch den Abbau von Finanzkapital zu finanzieren. Dieser Beitrag gibt einen kurzen Einblick in die neueste Studie von Olivia Mitchell, Andreas Hubener und Raimund Maurer zur Alterssicherung in den USA und stellt auch Berechnungen für Deutschland auf.
We study platform design in online markets in which buying involves a (non-monetary) cost for consumers caused by privacy and security concerns. Firms decide whether to require registration at their website before consumers learn relevant product information. We derive conditions under which a monopoly seller benefits from ex ante registration requirements and demonstrate that the profitability of registration requirements is increased when taking into account the prospect of future purchases or an informational value of consumer registration to the
rm. Moreover, we consider the effectiveness of discounts (store credit) as a means to influence the consumers-registration decision. Finally, we con
rm the profitability of ex ante registration requirements in the presence of price competition.
The latest appointment to the ECB's Executive Board initiated a political dispute between the European Parliament and the Euro Group on the question of representation of females on the Executive Board and the Governing Council of the ECB. The dispute has raised awareness to the fact that a culture of equality and equal opportunity should be built from the ground up. A long term plan helping talented women to emerge and be prepared to take increasing responsibilities is necessary to make sure that there is a growing pool of qualified female candidates.
The idea of appointing a non-national as Central Bank Governor remains surprisingly controversial. Nevertheless, given the skills required by the Governor in order to manage what no doubt are increasingly complex institutions, considering non-nationals makes good sense for at least two reasons. First, increasing the pool of candidates to include those with broader skills and backgrounds makes it easier to find a suitable person for the job. Second, non-nationals are less likely to be beholden to domestic pressure groups and could help better insulate the central bank from political pressures.
The exceptional circumstances in which the ECB has been operating in the past years are testing not only the currency union itself, but also its institutional design. While the Governing Council of the ECB was designed to mainly set interest rates optimally for the union as a whole, the recent crisis has expanded the tools of the ECB to include unconventional monetary policy actions that potentially increase the risk exposure of its balance sheet. Since each country would contribute to the losses according to its capital key, a different voting mechanism that takes into account the single country’s contribution to the ECB’s capital could be advisable.
In this paper, I examine the potential of mobile alerting services empowering investors to react quickly to critical market events. Therefore, an analysis of short-term (intraday) price effects is performed. I find abnormal returns to company announcements which are completed within a timeframe of minutes. To make use of these findings, these price effects are predicted using pre-defined external metrics and different estimation methodologies. Compared to previous research, the results provide support that artificial neural networks and multiple linear regression are good estimation models for forecasting price effects also on an intraday basis. As most of the price effect magnitude and effect delay can be estimated correctly, it is demonstrated how a suitable mobile alerting service combining a low level of user-intrusiveness and timely information supply can be designed.
Im Rahmen eines Börsen-Großexperiments anlässlich der Fußball-WM 1998 untersuchen wir den Einfluss von Aktienbetreuern auf die Marktliquidität. Die Marktformen des kontinuierlichen Handels, eines Systems mit einem monopolistischen Aktienbetreuer und mit konkurrierenden Betreuern wurden durch einen Gruppenvergleich unterschiedlich betreuter Aktien analysiert. Die Liquidität wurde mit Hilfe des bid-ask-Spreads und der inversen Markttiefe gemessen, einer Kenngröße zur Charakterisierung der Preis-Mengen-Relation der Liquidität. Wir finden, dass die betreuten Märkte liquider sind als die unbetreuten, und die konkurrierende Betreuung mehr Liquidität generiert als die eines Monopolisten. Nach kursrelevanten Informationsereignissen kehrten die Spreads in den betreuten Märkten schneller zu ihrem normalen Niveau zurück. Durch Rekonstruktion der nichtanonymen Orderbücher konnte der direkte Einfluß der Betreuer auf die Liquidität von den Beiträgen der übrigen Marktteilnehmer separiert werden. Interessanterweise zeigt sich, dass nur ein Teil der Liquiditätsverbesserung mit den Orders der Betreuer erklärt werden kann. Demnach stünden die Liquiditätsbereitstellung durch Betreuer und die der anderen Marktteilnehmer nicht in einer konkurrierenden, sondern komplementären Beziehung zueinander.
We introduce a new measure of systemic risk, the change in the conditional joint probability of default, which assesses the effects of the interdependence in the financial system on the general default risk of sovereign debtors. We apply our measure to examine the fragility of the European financial system during the ongoing sovereign debt crisis. Our analysis documents an increase in systemic risk contributions in the euro area during the post-Lehman global recession and especially after the beginning of the euro area sovereign debt crisis. We also find a considerable potential for cascade effects from small to large euro area sovereigns. When we investigate the effect of sovereign default on the European Union banking system, we find that bigger banks, banks with riskier activities, with poor asset quality, and funding and liquidity constraints tend to be more vulnerable to a sovereign default. Surprisingly, an increase in leverage does not seem to influence systemic vulnerability.
We outline a procedure for consistent estimation of marginal and joint default risk in the euro area financial system. We interpret the latter risk as the intrinsic financial system fragility and derive several systemic fragility indicators for euro area banks and sovereigns, based on CDS prices. Our analysis documents that although the fragility of the euro area banking system had started to deteriorate before Lehman Brothers' file for bankruptcy, investors did not expect the crisis to affect euro area sovereigns' solvency until September 2008. Since then, and especially after November 2009, joint sovereign default risk has outpaced the rise of systemic risk within the banking system.
The aim of this study was to identify and evaluate different de-identification techniques that may be used in several mobility-related use cases. To do so, four use cases have been defined in accordance with a project partner that focused on the legal aspects of this project, as well as with the VDA/FAT working group. Each use case aims to create different legal and technical issues with regards to the data and information that are to be gathered, used and transferred in the specific scenario. Use cases should therefore differ in the type and frequency of data that is gathered as well as the level of privacy and the speed of computation that is needed for the data. Upon identifying use cases, a systematic literature review has been performed to identify suitable de-identification techniques to provide data privacy. Additionally, external databases have been considered as data that is expected to be anonymous might be reidentified through the combination of existing data with such external data.
For each case, requirements and possible attack scenarios were created to illustrate where exactly privacy-related issues could occur and how exactly such issues could impact data subjects, data processors or data controllers. Suitable de-identification techniques should be able to withstand these attack scenarios. Based on a series of additional criteria, de-identification techniques are then analyzed for each use case. Possible solutions are then discussed individually in chapters 6.1 - 6.2. It is evident that no one-size-fits-all approach to protect privacy in the mobility domain exists. While all techniques that are analyzed in detail in this report, e.g., homomorphic encryption, differential privacy, secure multiparty computation and federated learning, are able to successfully protect user privacy in certain instances, their overall effectiveness differs depending on the specifics of each use case.
Vermutlich schon bald wird sich die Politik mit der gesetzlichen Verankerung eines makroprudenziellen Mandats für die Deutsche Bundesbank befassen. Welche Ziele soll das Mandat beinhalten, die über die bereits bestehende Aufgabe der Bundesbank, zur Finanzstabilität im Euroraum beizutragen, hinausgehen? Welche Instrumente sollen bei der Ausübung des Mandats zum Einsatz kommen?
Die unkonventionellen Maßnahmen der EZB haben nicht nur zu Bilanz- und Reputationsrisiken geführt. Vielmehr haben sie auch die Grenzen der monetären Politik zur Verteilungs- und Finanzpolitik verwischt. Die Strukturen im Finanzsystem müssen durch ordnungspolitische Maßnahmen robuster gemacht werden.
Der Beitrag diskutiert den unlängst veröffentlichten Referentenentwurf eines Finanzstabilitätsgesetzes, der vorsieht, dass die Bundesbank ab 2013 ein Mandat zur makroprudenziellen Überwachung bekommt. Die Entscheidungen über die Vorschläge, die sich vor allem an die Bundesregierung oder an die Bundesanstalt für Finanzdienstleistungsaufsicht (Bafin) richten dürften, wird ein neuer Ausschuss für Finanzstabilität beim Bundesfinanzministerium treffen. Der Autor befasst sich mit der Zusammensetzung dieses Ausschusses und mit den Instrumenten, die für die Umsetzung der Empfehlungen des Ausschusses zur Verfügung stehen.
Multiplayer games have become very popular in the PC market. Almost none of the current games are shipped without some support for multiplayer gaming. At the same time mobile devices are becoming more powerful and popularity of games on these platforms increases. However, there are almost no games that support multiplayer gaming despite the multiple options of these devices to connect with each other and build mobile ad hoc networks. Reasons for this lack of multiplayer support are the high diversity of mobile devices as well as the different protocols and their properties that these devices support. With “SmartBlaster” we developed a multiplayer game for several different platforms that is using several different channels (Bluetooth, IrDa, 802.11 and other networks supporting TCP/IP) to communicate between them.
Europa - wohin?
(2011)
Gemäß der Krönungstheorie der europäischen Währungsunion wurde der Euro eingeführt, um die Notwendigkeit gemeinsamen Regierens in der Europäischen Union allen vor Augen zu führen und so ein geordnetes Vorrücken zur europäischen Integration zu ermöglichen. In der gegenwärtigen Phase scheint indes politischer Opportunismus die Integration zu bestimmen.
This paper documents the experiences of assurance evaluation during the early stage of a large software development project. This project researches, contracts and integrates privacy-respecting software to business environments. While assurance evaluation with ISO 15408 Common Criteria (CC) within the certification schemes is done after a system has been completed, our approach executes evaluation during the early phases of the software life cycle. The promise is to increase quality and to reduce testing and fault removal costs for later phases of the development process. First results from the still-ongoing project suggests that the Common Criteria can define a framework for assurance evaluation in ongoing development projects.
Die Macht der Ratingagenturen beruht auch auf den vielen Gesetzen und Verordnungen, die eine Orientierung an den Ratings der drei großen Agenturen vorschreiben, sagt Wirtschaftsprofessor Reinhard Schmidt. Um die Macht der Ratingagenturen zu begrenzen, empfiehlt er viele dieser Regeln ersatzlos zu streichen.
Das deutsche Bankensystem ruht seit Jahrzehnten auf drei Säulen: den privaten Kreditbanken, den öffentlichen Banken des Sparkassensystems und den genossenschaftlichen Banken. Das Drei-Säulen-System scheint ursächlich für die Stabilität im deutschen Bankensystem zu sein. Gerade die Krise hat gezeigt, dass es für ein Bankensystem vorteilhaft ist, wenn es darin nicht nur einen Typus von Banken gibt. Wir müssen eine Pluralität von Organisationsformen im Bankwesen erhalten und weiterentwickeln.
After initial temporary measures in support of Greece prooved insufficient to end the sovereign debt crisis, extensive countermeasures have ensued. The heads of state of the euro group have agreed to permanent support mechanims over the course of the past two years. In addition, the European Central Bank (ECB) has become involved in the assistance program. The article provides an overview of the various support mechanisms installed and cautions against the connected legal problems.
Ein Freibrief für die Notenbank bedeutet, genau genommen, die Bankrotterklärung des demokratischen Verfassungsstaates vor technokratischen Beliebigkeiten, schreibt Helmut Siekmann in diesem Namensbeitrag. Er betont, dass die Europäische Union eine unverzichtbare Einrichtung ist und ein echter Bundesstaat sein sollte. Sie sei aber im Wesentlichen (nur) ein Rechtskonstrukt, weshalb es umso wichtiger sei, dass die rechtlichen Regeln, auf denen sie beruht, genauestens beachtet werden.
Das neue Kreditinstitute-Reorganisationsgesetz, das als Artikel 1 des Restrukturierungsgesetzes vom 9. Dezember 2010 erlassen worden ist, führt für deutsche Kreditinsitute eine Bankenabgabe ein. Die Abgabe soll als Mittel der Prävention und Intervention dienen, um Finanzkrisen vorzubeugen und zu bekämpfen. Der vorliegende Beitrag bewertet die deutsche Bankenabgabe nach verfassungsrechtlicher Zulässigkeit und nach ihrer Zweckerfüllung.
Rechtsbrüche im Euroraum
(2011)
In its decision of December 13, 2011, the Constitutional Court of the state of North Rhine-Westphalia ruled that a State Court of Auditors is granted by the constitution a broad scope of powers not only to control the immediate state administration but also entities outside the direct state administration, as far as they exercise financial responsibility for the state. This ruling may have serious implications for the capital guarantees extended by EU Member States to the newly established institutions on the European level, as for instance the European Stability Mechanism (ESM).
Schlechte Erfahrungen
(2012)
Eine Transaktionssteuer auf Finanzgeschäfte würde weniger Geld einbringen, als viele ihrer Anhänger hoffen - und sie birgt gravierende ökonomische und juristische Risiken. Die Bundesregierung sollte sich der Belastungen durch eine Finanztransaktionssteuer bewusst sein – und sie nicht ohne Beteiligung der weltweit führenden Finanzplätze einführen. Eine internationale Einigung auf strengere Eigenkapitalvorschriften für Banken muss Vorrang haben.
The syndicated loan market, as a hybrid between public and private debt markets, comprises financial institutions with access to valuable private information about borrowers as a result of close bank-borrower relationships. In this paper, we seek empirical evidence for the costs of these relationships in a sample of UK syndicated loan contracts for the time period 1996 through 2005. Using detailed financial data for both borrowers (private and public companies) and for financial institutions, we find that undercapitalized banks charge higher loan spreads for loans to opaque borrowers using various measures for borrower opaqueness and controlling for bank, borrower and loan characteristics. We further analyze this hold-up effect over the business cycle and find that it only prevails during recessions. In expansion phases, however, we do not find evidence for banks exploiting their information monopoly. This finding is consistent with theories on bank reputation in bank loan commitments. Ambiguity about borrower financial health, which induces the information monopoly in the first place, also gives banks the discretion to exploit or not exploit informational captured borrowers. Our findings are both statistically and economically significant and robust to alternative bank and macroeconomic risk proxies. We address potential concerns about unobserved borrower heterogeneity exploiting the panel data nature of our sample. Using firm-bank fixed effect regressions, we find supporting evidence for our theoretical framework. JEL Classifications: G14, G21, G22, G23, G24 Keywords: Syndicated loans; Hold-up; Lending relationships; Business cycle
Option-implied information and predictability of extreme returns : [Version 24 September 2012]
(2012)
We study whether option-implied conditional expectation of market loss due to tail events, or tail loss measure, contains information about future returns, especially the negative ones. Our tail loss measure predicts future market returns, magnitude, and probability of the market crashes, beyond and above other option-implied variables. Stock-specific tail loss measure predicts individual expected returns and magnitude of realized stock-specific crashes in the cross-section of stocks. An investor, especially the one who cares about the left tail of her wealth distribution (e.g., disappointment-averse), benefits from using the tail loss measure as an information variable to construct managed portfolios of a risk-free asset and market index. The tail loss measure is motivated by the results of the extreme value theory, and it is computed from observed prices of out-of-the-money put as the risk-neutral expected value of a loss beyond a given relative threshold.
Applying an investment perspective to higher education, the paper presents detailed empirical evidence on the rate of return to higher education and its determinants. Employing a sample of 17,180 higher education graduates derived from the German Labor Force Survey 2004, we show considerable variation in the rates of return to higher education across the different subjects, with some subjects on average not representing attractive private investments from an economic point of view. We find that the decision what to study is worth several hundred thousand Euros. Applying regression analysis, we find gender- and degree-specific return advantages only in certain subjects. Comparing the return of an investment in higher education and the production cost of higher education, we show that more expensive subjects (apart from Medicine) yield a lower return. When considering the cost of study, the overall order of attractiveness of the different forms of education remains stable, but the investment in further subjects is no longer clearly attractive. Keywords: Returns to Education, Human Capital, Higher Education Earnings Capacity.
Am 27. März 2011 wird im Rahmen der hessischen Kommunalwahlen auch über eine Schuldenbremse abgestimmt. Diese sieht vor, dass vom Jahr 2020 an der Landeshaushalt grundsätzlich auszugleichen ist. Alfons Weichenrieder argumentiert, dass eine in der Verfassung verankerte Schuldenregel dazu geeignet ist die im politischen Prozess angelegten Anreize zur Verschuldung zu zügeln. Auf die disziplinierende Wirkung der Finanzmärkte alleine zu vertrauen reicht nicht.
Using fiscal reaction functions for 3a panel of actual euro-area countries the paper investigates whether euro membership has reduced the responsiveness of countries to increases in the level of inherited debt compared to the period prior to succession to the euro. While we find some evidence for such a loss in prudence, the results are not robust to changes in the specification, as for example an exclusion of Greece from the panel. This suggests that the current debt problems may result to a large extent from pre-existing debt levels prior to entry or from a larger need for fiscal prudence in a common currency, while an adverse change in the fiscal reaction functions for most countries does not apply.
How to be a good European...
(2010)
Unter der Überschrift "Ich kaufe griechische Staatsanleihen weil..." sollten Persönlichkeiten aus Politik, Wirtschaft und Kultur kurz begründen, warum sie griechische Staatsanleihen gekauft haben bzw. kaufen werden--idealerweise unter Nachweis ihres finanziellen Engagements. Zum jetzigen Zeitpunkt kaufe ich keine griechischen Staatsanleihen...
Notenbanken haben heute nicht die Aufgabe die Geldmenge zu kontrollieren. Ihr Job ist es, den Wert des Geldes – und damit den Preis der Wirtschaftsgüter in der jeweiligen Währung – zu stabilisieren. Doch wie ist diese Preisstabilität am besten herzustellen? Muß man dabei nicht doch die Geldmenge im Auge behalten? Unter monetären Ökonomen gibt es dazu eine wissenschaftliche Debatte.
Dem Druck standhalten
(2013)
Stellungnahme zum Antrag der SPD-Fraktion auf Einführung einer Finanztransaktionssteuer in Europa
(2011)
Die Finanztransaktionssteuer ist kein geeignetes Instrument zur Verringerung systemischer Risiken, noch ein Mittel zur Vorbeugung einer Finanzkrise. Da sie zudem nur in Deutschland, Frankreich und einzelnen anderen Staaten eingeführt würde, wäre das Steueraufkommen, aufgrund von Steuerumgehung durch Verlagerung von Finanztransaktionen ins Ausland, gering.
This contribution draws on two recent publications in which the macroeconomic model data base (www.macromodelbase.com) is employed for model comparisons. The comparative approach is used to base policy analysis on a systematic evaluation of the different implications that a certain economic policy can have when submitted to different modeling approaches. In this manner, policy recommendations are more robust to modeling uncertainty. By extending the comparative approach to forecasting, the authors investigate the accuracy of different forecasting models and obtain more reliable mean forecasts.
In 2011 wurde der Preis für Wirtschaftswissenschaften der schwedischen Reichsbank im Gedenken an Alfred Nobel an die US-Ökonomen Thomas J. Sargent von der New York University und Chistopher A. Sims von Princeton University verliehen. Gerade deutsche Zeitungskommentare kritisierten die Forscher vielfach für die Verwendung „unrealistischer“ Annahmen wie Nutzenmaximierung und rationale Erwartungen. Diese Kritik verkennt den maßgeblichen Beitrag von Sargent und Sims zur Entwicklung der modernen Makroökonomik. Ihre empirischen Methoden sind heute Standardwerkzeuge der akademischen Forschung und werden auch von Ökonomen in Zentralbanken, Finanzministerien und internationalen Organisationen eingesetzt. Sie haben grundlegende neue Erkenntnisse ermöglicht, zum Beispiel über die Wirkungsweise der Geld- und Fiskalpolitik.
This paper investigates the accuracy of point and density forecasts of four DSGE models for inflation, output growth and the federal funds rate. Model parameters are estimated and forecasts are derived successively from historical U.S. data vintages synchronized with the Fed’s Greenbook projections. Point forecasts of some models are of similar accuracy as the forecasts of nonstructural large dataset methods. Despite their common underlying New Keynesian modeling philosophy, forecasts of different DSGE models turn out to be quite distinct. Weighted forecasts are more precise than forecasts from individual models. The accuracy of a simple average of DSGE model forecasts is comparable to Greenbook projections for medium term horizons. Comparing density forecasts of DSGE models with the actual distribution of observations shows that the models overestimate uncertainty around point forecasts.
Im Mittelpunkt des Gutachtens stehen die anthropologischen Grundlagen, das wirtschaftsethische Fundament und das Menschenbild der Sozialen Marktwirtschaft. Die Leitlinien des Wittenberg-Prozesses der Chemie-Sozialpartner dienen dabei als argumentative Grundstruktur. Ziel der Arbeit ist es, aufzuzeigen, dass die CSSA und der Wittenberg-Prozess auf den normativen und wirtschaftsethischen Prämissen der (originären) Sozialen Marktwirtschaft ruhen und die Sozialpartnerschaft der chemischen Industrie ein wichtiger Baustein ist auf dem Weg hin zu einer Neubegründung und Renaissance der Sozialen Marktwirtschaft vor dem Hintergrund der Globalisierung. Folgende Hypothesen sollen dabei eingehender untersucht werden: 1. Fundamental für die Wirtschaftsethik der Sozialen Marktwirtschaft ist die Unterscheidung von Individual, Unternehmens-und Ordnungsethik. 2. Das Freiheitsverständnis der Sozialen Marktwirtschaft enthält sowohl negative (im Sinne der Abwesenheit von Willkür und Zwang) als auch positive Momente (im Sinne von rationaler Selbstbestimmung und kantischer Autonomie). Darüber hinaus inkorporiert es die aus der Konstitutionenökonomik bekannten Prinzipien der Diskriminierungs und Privilegienfreiheit. 3. Das Gerechtigkeitsverständnis der Sozialen Marktwirtschaft ist synkretistisch und eklektisch; es verbindet kommutative mit distributiven Gerechtigkeitselementen. 4. Der Homo oeconomicus ist kein(!) Bestandteil der Wirtschaftsethik der Sozialen Marktwirtschaft. Diese weist vielmehr Parallelen zur Heuristik der Kulturellen Ökonomik – dem sogenannten Homo culturalis – auf. 5. Eine bedeutende Funktion innerhalb der Sozialen Marktwirtschaft kommt der Sozialpartnerschaft zu. Diese leistet einen wichtigen Beitrag zur Stärkung der sozioökonomischen Teilhabe und Inklusion auf der unternehmensethischen Ebene.
Freiburg School of Law and Economics, Freiburg (Lehrstuhl-)Tradition and the Genesis of Norms
(2014)
The paper analyzes the parallels and differences between the Freiburg School of Law and Economics represented by the works of Eucken (and Röpke) and the Freiburg (Lehrstuhl-)Tradition represented by the works of Hayek and Vanberg. The parallels are illustrated by making use of the constitutional economics concepts Ordnungspolitik (i.e., order of rules/choices over rules) as well as freedom of privileges and discrimination. The differences, which have received surprisingly little attention, include the following aspects: 1. philosophy of science and epistemology, 2. genesis of norms, and 3. political philosophy. The paper tackles these issues in three steps. The second chapter presents Vanberg’s constitutional economics theory with special emphasis on the concepts of citizen sovereignty and normative individualism. The third chapter reviews the ordoliberal concepts of science and the state which are – to a certain degree – elitist and expertocratic, that is, they rely to a considerable degree on intellectual experts (in particular, scientists) being part of the societal elite. The fourth chapter differentiates two kinds of genesis of norms: an evolutionary one and an elitist-expertocratic one allowing for a differentiation between Eucken’s and Röpke’s Ordoliberalism on the on the hand and Vanberg’s Hayekian -- and Buchanan-style constitutional economics approach on the other hand. The paper ends with a summary of the main findings.
Following Foucault's analysis of German Neoliberalism (Ordoliberalism) and his thesis of ambiguity, this paper introduces a two-level distinction between individual and regulatory ethics. In particular, its aim is to reassess the importance of individual ethics in the conceptual framework of Ordoliberalism. The individual ethics of Ordoliberalism is based on the heritage of Judeo-Christian values and the Kantian individual liberty and responsibility. The regulatory or formal-institutional ethics of Ordoliberalism which has so far received most attention on the contrary refers to the institutional and legal framework of a socio-economic order. By distinguishing these two dimensions of ethics incorporated in German Neoliberalism, it is feasible to distinguish different varieties of neoliberalism and to link Ordoliberalism to modern economic ethics.
Variations and disparities between von Hayek and Ordoliberalism can be detected on diverse levels: 1. philosophy of science; 2. setting dissimilar priorities; 3. social philosophy; 4. genesis of norms; and, 5. notion of freedom. Therefore, it is possible to make an important distinction within neoliberalism itself, which contains at least two factions: von Hayek’s evolutionary liberalism, and German Ordoliberalism. The following essay not only takes the neoliberal separation of different varieties as granted; it proceeds further. It focuses on the topic of justice and elaborates the (slightly) differing conceptions of justice within neoliberalism. Thus, the specific contribution of the paper is that it adds a sixth dimension of differences (which is highly interconnected with the differing conceptions of genesis of norms). In this paper, I emphasize the (often neglected) subtle differences between von Hayek, Eucken, Röpke, and Rüstow, with special emphasis on their theories of justice. In this regard, I focus not only on Eucken and von Hayek; in addition, I include the concepts of justice developed by Rüstow and Röpke, as well, and, in consequence, broaden the perspective incorporating Eucken as a member of the Freiburg School of Law and Economics, and Rüstow and Röpke as representatives of Ordoliberalism in the wider sense. The paper tackles these topics in three steps. After briefly examining and discussing the existing literature and providing a literature overview on the decade-long debate on von Hayek and Ordoliberalism, I then describe von Hayek’s conception of commutative justice; particularly, justice of rules and procedures (rather than end-state justice). Then, I examine Eucken’s, Rüstow’s, and Röpke’s theories of justice, which consist of a mixture of commutative and distributive justice. Then, I draw a comparison between the ideas of justice developed by Eucken, Röpke, Rüstow, and von Hayek. The essay ends with a summary of my main findings.
4 June 2013 marked the formal launch of the third generation of the Equator Principles (EP III) and the tenth anniversary of the EPs – enough reasons for evaluating the EPs initiative from an economic ethics and business ethics perspective. This chapter deals with the following questions: What has been achieved so far by the EPs? Which reform steps need to be adopted to further strengthen the EPs framework? Can the EPs be regarded as a role model in the field of sustainable finance and CSR? The first part explains the term EPs and introduces the keywords related to the EPs framework. The second part summarises the main characteristics of the newly-released third generation of the EPs. The third part critically evaluates EP III from an economic ethical and business ethics perspective. The chapter concludes with a summary of the main findings.