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DESPITE AMPLE EVIDENCE THAT CUSTOMERS EXHIBIT HIGHER DISCOUNT RATES THAN FIRMS, IT IS NOT CLEAR HOW DIFFERENCES IN DISCOUNT RATES AFFECT OPTIMAL PRICES, PROFITS, AND WELFARE OF COMPLEMENTARY PRODUCTS (WHICH COULD BE GOODS OR SERVICES). WE SHOW FOR COMPLEMENTARY PROUCTS THAT HIGHER DISCOUNT RATES OF CUSTOMERS DO NOT INCREASE PROFIT OR CONSUMER SURPLUS. FIRMS, INCLUDING BANKS, WOULD BE ADVISED TO SEEK TO REDUCE EXCESSIVE DISCOUNT RATES AMONG CONSUMERS.
WE DECOMPOSE INDIVIDUAL INVESTORS’ PORTFOLIO RETURNS INTO PASSIVE BENCHMARK RETURNS, ACTIVE SECURITY SELECTION RETURNS, AND ACTIVE MARKET TIMING RETURNS. FOR THE AVERAGE INVESTOR IN OUR SAMPLE, PASSIVE BENCHMARK RETURNS EXPLAIN SOME 40% OF VARIATION IN LONGITUDINAL PORTFOLIO RETURNS, SECURITY SELECTION EXPLAINS AN ADDITIONAL 50%, AND MARKET TIMING PLAYS ONLY A MINOR ROLE. THIS STANDS IN STARK CONTRAST TO EARLIER RESULTS ON INSTITUTIONAL INVESTORS WHERE PASSIVE BENCHMARK RETURNS (REFLECTING DIFFERENT ASSET ALLOCATION STRATEGIES) EXPLAIN OVER 90%. THE PREDOMINANCE OF SECURITY SELECTION COMES AT A COST FOR INDIVIDUAL INVESTORS: INVESTORS FROM THE HIGHEST QUINTILE IN TERMS OF SECURITY SELECTION ACTIVITY UNDERPERFORM THEIR PEERS FROM THE LOWEST QUINTILE BY MORE THAN 10 PERCENTAGE POINTS PER YEAR. TRANSACTION COSTS EXPLAIN ONLY PART OF THIS UNDERPERFORMANCE. THE LESS INVESTORS DIVERSIFY, THE WORSE THEY DO.
TO DERIVE OPTIMAL ORDER EXECUTION STRATEGIES THAT STRIVE TO MINIMIZE TRANSACTION COSTS, INVESTORS AS WELL AS AUTOMATED TRADING ENGINES MUST BE ABLE TO ANTICIPATE CHANGES IN THE AVAILABLE MARKET LIQUIDITY. BASED ON AN EVENT STUDY ON THE LIQUIDITY IMPACT OF AD-HOC DISCLOSURES, WE PROPOSE A NOVEL IT ARTIFACT THAT ALLOWS AUTOMATED TRADING ENGINES TO APPROPRIATELY REACT TO NEWS-RELATED LIQUIDITY SHOCKS. FURTHERMORE, WE PROVIDE A SIMULATIONBASED EVALUATION THAT SHOWS ITS ECONOMIC RELEVANCE.
THE SPEED OF TRADING, AND IN PARTICULAR HIGH-FREQUENCY TRADING, IS ONE OF THE MOSTLY DEBATED ISSUES AMONG REGULATORS AND MARKET PARTICIPANTS. NEVERTHELESS, SEVERAL ACADEMIC STUDIES HAVE SHOWN THAT HIGH-FREQUENCY TRADERS USING LOW-LATENCY INFRASTRUCTURE PROVIDE ADDITIONAL LIQUIDITY THEREBY REDUCING TRANSACTION COSTS IN ORDINARY TIMES OF TRADING. WE STUDY WHETHER HIGH-FREQUENCY TRADERS ALSO CONTRIBUTE TO THE RECONSTRUCTION OF THE ORDER BOOK AFTER LIQUIDITY SHOCKS CAUSED BY LARGE ORDERS.
WHILE CLOUD MARKETS PROMISE UNLIMITED RESOURCE SUPPLIES, INDIVIDUAL PROVIDERS MIGHT BE UNABLE TO OFFER SUFFICIENT PHYSICAL CAPACITY TO SERVE LARGE CUSTOMERS. A SOLUTION IS TO FORM CLOUD COLLABORATIONS, IN WHICH MULTIPLE CLOUD PROVIDERS UNITE FORCES IN ORDER TO CONJOINTLY OFFER CAPACITIES WITHIN CLOUD MARKETS. QUALITY OF SERVICE (QOS) AND SECURITY ASPECTS ARE THE PRIMARY CONSIDERATIONS IN BUILDING SUCH COLLABORATIONS. THIS RESEARCH REPORT PRESENTS A CORRESPONDING OPTIMIZATION APPROACH FOR THE SELECTION OF COLLABORATIVE CLOUD PROVIDERS UNDER CONSIDERATION OF FULFILLMENT OF CLOUD USERS’ QOS AND SECURITY REQUIREMENTS.
Adorno’s negative dialectics wants to free the thought from the dictates of the system, taking position against the illusion to grasp the essence of reality by logic. Against that false idea of totality, Adorno devises a philosophy of fragment, a logic of disgregation that presupposes a different concept of totality: a fragmented, scattered and conflicting wholeness. The anti systematic thinking of Adorno is configured, however, as a systematic rejection of any systematic formulation: philosophy can at most claiming a pretension to truth by the practice of interpretation. A dialectic configuration of fragments of totality is at stake here: so, the arrangement of such fragments can both produce an image of reality endowed with meaning and also unfold through heterogeneous combinations that are not definitive, but always renewable from time to time. In Adorno’s reflection are so expressed two different instances which are complementary at the same time: on the one hand it represents the critical and negative element against the system and its hybris, on the other hand it expresses the need of the thought to go beyond and overcome that fragmentation, showing how the need of unity of the system is a need of the thought in itself.
Die Zahl der Verfahren und der Sterilisationen nach dem Gesetz zur Verhütung erbkranken Nachwuchses
(2015)
In dem Buch wird die Zahl der Verfahren nach dem Gesetz zur Verhütung erbkranken Nachwuchses von 1934 bis 1945 (nach Hochrechnung) im "Altreich" auf ca. 436.000 geschätzt. Durchgeführt wurden laut Schätzung im "Altreich" ca. 294.000 Sterilisationen. Dazu kommen noch ca. 10.000 bis 20.000 Sterilisationen in den "angeschlossenen" oder annektierten Gebieten bis 1945.
Controlling magnetic properties on the nanometer-scale is essential for basic research in micro-magnetism and spin-dependent transport, as well as for various applications such as magnetic recording, imaging and sensing. This has been accomplished to a very high degree by means of layered heterostructures in the vertical dimension. Here we present a complementary approach that allows for a controlled tuning of the magnetic properties of Co/Pt heterostructures on the lateral mesoscale. By means of in situ post-processing of Pt- and Co-based nano-stripes prepared by focused electron beam induced deposition (FEBID) we are able to locally tune their coercive field and remanent magnetization. Whereas single Co-FEBID nano-stripes show no hysteresis, we find hard-magnetic behavior for post-processed Co/Pt nano-stripes with coercive fields up to 850 Oe. We attribute the observed effects to the locally controlled formation of the CoPt L10 phase, whose presence has been revealed by transmission electron microscopy.
South African Journal of Industrial and Organisational Psychology: Annual editorial overview 2015
(2015)
Orientation: Employees’ perceptions of their leaders’ behaviour play a role in creating empowering environments where employees are willing to do more than what is expected, with retention of employees as a result. Research purpose: The aim of this study was to theoretically conceptualise and empirically determine the relationships between employees’ perception of their leaders’ empowering behaviour, psychological empowerment, organisational citizenship behaviours and intention to leave within a manufacturing division of an organisation. Motivation for the study: In the ever-changing work environment, organisations must capitalise on their human capital in order to maintain competitiveness. It is therefore important to identify the role of employees’ perception of leadership in contributing to the establishment of an environment where employees feel empowered, are willing to do more than what is expected and want to stay in the organisation. Research design, approach and method: A non-experimental, cross-sectional survey design was used. The total population (N = 300) employed at the manufacturing division was targeted. Two hundred completed questionnaires were obtained. The Leader Empowering Behaviour Questionnaire, Measuring Empowerment Questionnaire, Organisational Citizenship Behaviour Questionnaire and Intention to Leave Scale were administered. Main findings: Employees’ perception of their leaders’ empowering behaviour (keeping employees accountable, self-directed decision-making and people development), psychological empowerment (attitude and influence) and organisational citizenship behaviours (loyalty, deviant behaviour and participation) predict intention to leave the organisation. Practical/managerial implications: Organisations should foster the elements of a positive organisation, in this case leader empowering behaviours, if they want to retain their employees. Contribution/value-add: The results of this research contribute to scientific knowledge about the positive effects of employees experiencing their leaders as empowering.
Psychological ownership is a cognitive–affective construct based on individuals’ feelings of possessiveness towards and of being psychologically tied/attached to objects that are material (e.g. tools or work) and immaterial (e.g. ideas or workspace) in nature. Research suggests that psychological ownership could be influenced by various individual, organisational and contextual factors. The South African Employment Equity Act, which was implemented to grant equitable opportunities to previously disadvantaged employees, could be a significant contextual factor affecting psychological ownership, due to perceptions associated with inequality. Ethnicity may also act as a moderator for the relationship between perceptions of employment equity and psychological ownership. The objective of this study was to investigate the relationship between employment equity perceptions and psychological ownership and to explore whether ethnicity plays a moderating role in the relationship. A cross-sectional survey design was employed with a purposeful sample of 202 respondents employed in a large South African mining house. Pearson product–moment correlations and structural equation modelling confirmed that employment equity perceptions could predict the five components of psychological ownership. However, the results revealed that ethnicity has no moderating effect on the relationship between perceptions of employment equity and the emergence of psychological ownership. By implication, organisations that seek to retain employees targeted through equity initiatives need to find ways to enhance and develop the psychological ownership of these employees. The research contributes new insights into and knowledge of how contextual factors could influence employees’ psychological ownership.
Nos Mandamentos, Deus proíbe aos homens tanto a feitura de imagens quanto a pronúncia em vão de Seu nome. Há, portanto, limites rígidos entre as esferas do sagrado e do humano. Este artigo examinará paralelos e divergências entre os pensamentos de dois autores que abordaram essa questão a partir de escolas de pensamento distintas: o filósofo neomarxista judeu Theodor Adorno e o teólogo luterano Eberhard Jüngel.
Sublimity, negativity, and architecture. An essay on negative architecture through Kant to Adorno
(2015)
Architecture defines and consumes people. It exposes them to a multitude of varieties of different aesthetic engagements. Architecture becomes a lived experience. However, this lived experience is always caught in the inner workings of the social and more specifically within cultural ideology. In modern capitalism, culture pervades every aspect of our lives. It shows its presence everywhere from our own homes to the public streets. Culture is everywhere, and architecture is a tool used for both the benefit and detriment of the “culture industry”. Kant speaks of the sublime as a profound moment of reason realizing its ability to overcome its own limits. In this experience is it possible to be completely ravaged and descend into hades and melancholy? Is there a beauty in this descent? More specifically, can architecture become banal or pedestrian, uplifting or depressing? According to Theodor Adorno, our subjectivity is defined by the constant dialectical struggle between freedom and unfreedom (among other things). It is realizing our freedom in the face of our unfreedom that makes us truly able to attain some form of resistance. The sublime experience can be transformed into a spirit of revelation and beautifully allow us to in a way resist the one-dimensional tendencies of modern capitalism. Architecture, which is immersed in our societal being and contributes to many of our own subjective unfreedoms, comes to define our lives as inhabited space. When does architecture produce a sublime experience? Can architecture’s authentic “aura” stand out amongst the reproduced city and produce a sublime feeling that can be a form of resistance against the culture industry? Does Grand Central Terminal provide the key to an architecturally sublime experience? Using dialectical experience and examining the sublime feeling (in a critique of the Kantian sublime) as the key to breaking through the culture industry’s banal architectural hold on our subjectivity, this essay will examine the experience of the sublime as a key to unfolding resistance in the face of the banality of modern architecture in the city and opening our minds to the Great Refusal through the exploration of Grand Central Terminal.
Este trabajo es el resultado de la investigación Capital Humano como factor de crecimiento Económico, en el cual se desarrolla una reflexión crítica sobre la teoría del Capital Humano, el abordaje se hace desde la teoría económica y el análisis tiene como referente los planteamientos de la Escuela de Frankfurt, especialmente en lo que tiene que ver con el uso desde la perspectiva de la racionalidad. Desde el punto de vista metodológico se trata de una investigación cualitativa, basada en un proceso de carácter interpretativo y comprensivo de tipo Histórico Hermenéutico, el método utilizado responde a una finalidad de descripción, interpretación, argumentación, que permitan avanzar hacia la comprensión de las temáticas estudiadas en un proceso dialéctico. Como resultado del proceso investigativo se hace un análisis de la instrumentalización de la educación, la formación, la capacidad de trabajo y el estado de salud del hombre, y aún de su propio ser, las cuales se consideran de la misma naturaleza que una maquina y quedan cosificadas al ser convertidas en mercancías comerciales que se venden en el mercado, lo que determina la posibilidad de colocarle un precio pagado en el mercado a la productividad de un tipo de trabajo determinado, a la acción del propio hombre y el desarrollo de sus capacidades superiores que deberían permitirle contribuir al logro de una sociedad mejor y una vida más digna.
Este artigo analisa a crítica de Adorno à ontologia de Heidegger. Para tal, utiliza como leitmotiv a interpretação heideggeriana de Kant. Procuraremos mostrar que para Adorno a edificação da ontologia fundamental a partir da filosofia de Kant é uma interpretação indevida desta. Por fim, procura apontar uma possível saída na filosofia de Adorno para o problema da necessidade de fundamentação do discurso filosófico. Tal saída passa pela constatação da importância da arte para a construção da universalidade na filosofia.
Desde Dialéctica de la Ilustración hasta Dialéctica negativa, el materialismo filosófico llevado adelante por T. W. Adorno ha ubicado en un lugar central de sus reflexiones la problemática de lo corporal, poniéndolo en discusión directa tanto con el psicoanálisis y su teoría de las pulsiones, así como con las diferentes versiones del idealismo. La reflexión acerca de este ámbito, permitirá exponer tanto el carácter represivo de la sociedad; también, la posibilidad de una ética verdaderamente democrática.
O presente artigo visa a fazer algumas anotações sobre educação, emancipação e crítica social no pensamento de Theodor W. Adorno. Esses temas se relacionam direta e indiretamente nos escritos de Adorno e assinalam a coerência epistemológica da sua teoria crítica em relação a ambos. Desse modo, a questão que colocamos é a seguinte: como compreender a tensão presente entre as necessidades de uma educação para a emancipação e as condições para efetivá-la? Essa questão nos encaminha para outra: é possível relacionar, nos textos adornianos, uma perspectiva de se pensar a educação para a emancipação, articulada a uma crítica social no contexto atual? Primeiramente, fazemos uma breve incursão no que consiste o pensamento contra a barbárie em Adorno, sobretudo, a partir do sentido de Auschwitz como símbolo da relação entre civilização e barbárie que o autor faz. Num segundo momento, nos confrontamos com a questão da formação cultural na Teoria da Semiformação, cujo escopo do texto é apontar os limites da formação cultural e consequentemente os limites da educação no âmbito do capitalismo avançado. Por fim, pretendemos discutir a ideia de "crítica social" em Adorno, articulada aos temas anteriores, isto é, apontar algumas ponderações para uma educação contra a barbárie e a semiformação frentes aos desafios impostos pela sociedade atual.