Micro-simulation and Normative Policy Evaluation: An Application to Some EU Tax Benefits Systems

In this work we explore the impact of alternative tax benefits systems on household welfare. The framework of our analysis is the theory of optimal taxation with the distribution of potential wages replaced by the distribution of household abilities. The latter has been calculated by inversion of the household's utility maximization problem. This methodology has then been implemented in order to compare the tax benefits systems of France and the United Kingdom. We have employed a behavioral micro‐simulation model that has been applied on samples extracted from the “Households Budget Survey 1989” of INSEE and from the “Family Expenditure Survey” of ONS.     

Optimal Income Tax Enforcement under Prospect Theory

Prospect theory (PT) has become the most accepted alternative to expected utility theory (EUT) as a theory of decision under uncertainty. This paper extends the existing literature on efficient tax and audit schemes, by answering the question as to just how progressive an efficient tax system can be when assuming that taxpayers behave in line with the tenets of PT. Under reasonable assumptions regarding the reference income and the value function of taxpayers, we show that the efficient tax schedule is regressive while audit probabilities are nonincreasing in the declared income. These results are consistent with the previous literature on EUT.