Temptation and Social Security in a Dynastic Framework

We investigate welfare and aggregate implications of a pay as you go (PAYG) social security system in a dynastic framework in which agents have self-control problems. The presence of these two additional factors at the same time affects individuals’ intertemporal decision problems in two opposite directions. That is, on the one hand individuals prefer to save more because of their altruistic concerns, on the other hand, they prefer to save less because of their urge for temptation towards current consumption. Individuals’ efforts to balance between the long-term commitment (consumption smoothing and altruism) and the short-term urge for temptation result in self-control costs. In this environment the existence of social security system provides not only consumption smoothing and risk sharing mechanisms but also a channel that reduces the severity of temptation. We find that the adverse welfare effects of a PAYG system are further mitigated relative to the environments that incorporates altruism and self control issues separately.Temptation; Self-control preferences; Altruism; Social security; Dynamic general equilibrium; Overlapping generations; Welfare

Social Security Reform and Temptation

This paper analyzes a fully funded social security system under the assumption that agents face temptation issues. Agents are required to save through individually managed Personal Security Accounts without, and with mandatory annuitization. When the analysis is restricted to CRRA preferences our results are congruent with the literature indicating that the complete elimination of social security is the reform scenario that maximizes welfare improvement. However, when self control preferences are introduced, and as the intensity of self control becomes progressively more severe the "social security elimination" scenario loses ground very rapidly. In fact, in the case of very severe temptation the elimination of social security becomes the least desirable alternative. Under the light of the above findings, any reform proposal regarding the social security system should consider departures from standard preferences to preference specifications suitable for dealing with preference reversals.funded social security, unfunded social security, self-control preferences

Essays on Behavioral Public Economics and Microeconomic Theory

This dissertation consists of the three independent chapters in the areas of Public Economics and Microeconomic Theory. The first two chapters use experimental and computational techniques to address two important behavioral issues in Public Economics. In particular, the first chapter (with Lise Vesterlund) examines if concerns for status may help explain why fundraisers commonly announce past contributions to future donors. To answer this question we incorporate status concerns into the standard charitable giving model, and subsequently test the predicted comparative statics in the laboratory. Consistent with the economic prediction we find that low-status followers are likely to mimic contributions by high-status leaders and that this encourages high-status leaders to contribute. Contributions are therefore larger when individuals of high status contribute before rather than after those of low status. The second chapter (with Athanasios C. Thanopoulos) uses computational techniques to assess welfare implications of an unfunded social security system when individuals have self-control preferences. Our computation model demonstrates that the welfare costs of an unfunded social security system are substantially reduced when agents have self-control preferences. However, the positive effect of reducing self-control costs is not large enough to surpass its negative effect on capital accumulation. Finally, the third chapter (with Hadi Yektas) of the dissertation examines an important and open mechanism design question. It characterizes the necessary conditions of optimal auction for multiple objects when agents are risk-averse. We show that the optimal auction is weakly efficient; in the sense that each object is sold to a buyer who has high valuation for it, if such a buyer exists. The seller perfectly insures all buyers against the risk of losing the object(s) for which they have high valuation. While the buyers who have high valuation for both objects are compensated if they do not win either object; the buyers who have low valuation for both objects incur a positive payment in the same event. The objects are bundled to the same buyer if all buyers have low valuation for both objects, thus, independent auctions are not optimal

Social security reform and temptation

This paper analyzes a fully funded social security system under the assumption that agents face temptation issues. Agents are required to save through individually managed Personal Security Accounts without, and with mandatory annuitization. When the analysis is restricted to CRRA preferences our results are congruent with the literature indicating that the complete elimination of social security is the reform scenario that maximizes welfare improvement. However, when self control preferences are introduced, and as the intensity of self control becomes progressively more severe the social security elimination scenario loses ground very rapidly. In fact, in the case of very severe temptation the elimination of social security becomes the least desirable alternative. Under the light of the above findings, any reform proposal regarding the social security system should consider departures from standard preferences to preference specifications suitable for dealing with preference reversals

Temptation and social security in a dynastic framework European Economic Review (published online 8 Aug 2012) We investigate welfare and aggregate implications of a pay-as-you-go (PAYG) social security system in a dynastic framework in which individuals h

We investigate the welfare implications of a pay as you go (PAYG) social security system in a dynastic framework in which agents have self-control problems. Unlike the previous studies, we incorporate altruism and temptation into our analysis. The presense of these two additional factors affects agents ’ intertemporal decision problems in two opposite directions. That is, on the one hand agents want to save more because of their altruistic concerns, on the other hand, they want to save less because of their urge of temptation towards current consumption. Agents ’ efforts to balance between the long-term commitment (consumption smoothing and altruism) and the short-term urge of temptation result in a self-control cost. In this environment, the existence of social security system provides not only consumption smoothing and risk-sharing mechanisms but also a channel that reduces the severity of temptation. We calibrate our model to the US data. Our quantitative results show that the presence of temptation and altruism mitigates the adverse welfare effects of a PAYG system. JEL Classification: E21, H5

Tax Competition and Income Sorting: Evidence from the Zurich Metropolitan Area

In this paper, we provide empirical evidence for the influence of income taxes on the choice of residence of taxpayers at the local level. The fact that Swiss communities can individually set tax multipliers thereby shifting the progressive tax scheme which is fixed at the cantonal (state) level enables us to study the effect of differences in income taxation on individuals' choice of location within an economically and culturally homogeneous region. Using panel IV regressions covering the years 1991-2003 and 171 communities in the Swiss canton of Zurich and spatial error regressions for the 171 communities in 2003, we find substantial evidence for income sorting

Testing Enforcement Strategies in the Field: Legal Threat, Moral Appeal and Social Information

We run a large-scale natural field experiment to evaluate alternative strategies to enforce compliance with the law. The experiment varies the text of mailings sent to potential evaders of TV license fees. We find a strong alert effect of mailings, leading to a substantial increase in compliance. Among different mailing conditions a legal threat that stresses a high detection risk has a significant and highly robust deterrent effect. Neither appealing to morals nor imparting information about others' behavior enhances compliance. However, the information condition has a positive effect in municipalities where evasion is believed to be common. Overall, the economic model of crime performs remarkably well in explaining our data