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71 [v.2]
When markets are incomplete, social security can partially insure against idiosyncratic and aggregate risks. We incorporate both risks into an analytically tractable model with two overlapping generations. We derive the equilibrium dynamics in closed form and show that joint presence of both risks leads to over-proportional risk exposure for households. This implies that the whole benefit from insurance through social security is greater than the sum of the benefits from insurance against each of the two risks in isolation. We measure this through interaction effects which appear even though the two risks are orthogonal by construction. While the interactions unambiguously increase the welfare benefits from insurance, they can in- or decrease the welfare costs from crowding out of capital formation. The net effect depends on the relative strengths of the opposing forces.
110
n this paper we compute the optimal tax and education policy transition in an economy where progressive taxes provide social insurance against idiosyncratic wage risk, but distort the education decision of households. Optimally chosen tertiary education subsidies mitigate these distortions. We highlight the importance of two different channels through which academic talent is transmitted across generations (persistence of innate ability vs. the impact of parental education) for the optimal design of these policies and model different forms of labor as imperfect substitutes, thereby generating general equilibrium feedback effects from policies to relative wages of skilled and unskilled workers. We show that subsidizing higher education has important redistributive benefits, by shrinking the college wage premium in general equilibrium. We also argue that a full characterization of the transition path is crucial for policy evaluation. We find that optimal education policies are always characterized by generous tuition subsidies, but the optimal degree of income tax progressivity depends crucially on whether transitional costs of policies are explicitly taken into account and how strongly the college premium responds to policy changes in general equilibrium.
73 [ver 2015]
Based on a cognitive notion of neo-additive capacities reflecting likelihood insensitivity with respect to survival chances, we construct a Choquet Bayesian learning model over the life-cycle that generates a motivational notion of neo-additive survival beliefs expressing ambiguity attitudes. We embed these neo-additive survival beliefs as decision weights in a Choquet expected utility life-cycle consumption model and calibrate it with data on subjective survival beliefs from the Health and Retirement Study. Our quantitative analysis shows that agents with calibrated neo-additive survival beliefs (i) save less than originally planned, (ii) exhibit undersaving at younger ages, and (iii) hold larger amounts of assets in old age than their rational expectations counterparts who correctly assess their survival chances. Our neo-additive life-cycle model can therefore simultaneously accommodate three important empirical findings on household saving behavior.
107
Since August 2009, German legislation allows for voluntary Say on Pay Votes (SoPV) during Annual General Meetings (AGMs). We examine 1,169 AGMs of all German listed firms with more than 10,000 agenda items over the period 2010-2013 to identify (1) determinants and approval rates of voluntary SoPVs, (2) the effect of voluntary SoPVs on AGM participation, and (3) the effect of SoP on executive compensation. Our data reveals that in the first four years of the voluntary say on pay regime every second firm in our sample has opted for having a SoPV. The propensity for a SoPV increases with firm size, abnormal executive compensation and free float of shares. Indeed, smaller firms with concentrated ownership do not only have a lower propensity for a SoPV, but also show a higher propensity to opt for only limited disclosure of executive compensation. Approval rates of SoPVs are lower than the approval rate for the average AGM agenda item and this effect is stronger in (i) widely held firms as well as in (ii) firms with abnormal executive compensation. Additionally, SoPVs actually can increase AGM participation; however, this result is particularly evident for widely held firms. Finally, we find stronger pay for performance elements within total executive compensation, particularly when the effect of executive compensation is lagged over the years following the vote. Overall, our results are consistent with the view that firms use voluntary SoPV to gain legitimation for executive remuneration policies in firms with low ownership concentration. This is enforced, where (small) shareholders consider executive compensation a part of the agency problem of listed firms, and where (small) shareholders consider SoPVs as a possibility to actively influence corporate decisions, with these decisions leading to a higher degree of alignment between executive management boards and shareholders.
85
We set up and solve a rich life-cycle model of household decisions involving consumption of both perishable goods and housing services, stochastic and unspanned labor income, stochastic house prices, home renting and owning, stock investments, and portfolio constraints. The model features habit formation for housing consumption, which leads to optimal decisions closer in line with empirical observations. Our model can explain (i) that stock investments are low or zero for many young agents and then gradually increasing over life, (ii) that the housing expenditure share is age- and wealth-dependent, (iii) that perishable consumption is more sensitive to wealth and income shocks than housing consumption, and (iv) that non-housing consumption is hump-shaped over life.
113
We analyze the macroeconomic implications of increasing the top marginal income tax rate using a dynamic general equilibrium framework with heterogeneous agents and a fiscal structure resembling the actual U.S. tax system. The wealth and income distributions generated by our model replicate the empirical ones. In two policy experiments, we increase the statutory top marginal tax rate from 35 to 70 percent and redistribute the additional tax revenue among households, either by decreasing all other marginal tax rates or by paying out a lump-sum transfer to all households. We find that increasing the top marginal tax rate decreases inequality in both wealth and income but also leads to a contraction of the aggregate economy. This is primarily driven by the negative effects that the tax change has on top income earners. The aggregate gain in welfare is sizable in both experiments mainly due to a higher degree of distributional equality.