Pierre C. Boyer

The Pareto-Frontier in a simple Mirrleesian model of income taxation

We characterize the Pareto-frontier in a simple Mirrleesian model of income taxation. We show how the second-best frontier which incorporates incentive constraints due to private information on productive abilities relates to the first-best frontier which takes only resource constraints into account. In particular, we argue that the second-best frontier can be interpreted as a Laffer-curve. We also use this second-best frontier for a comparative statics analysis of how optimal income tax rates vary with the degree of inequity aversion, and for a characterization of optimal public-good provision. We show that a more inequity averse policy maker chooses tax schedules that are more redistributive and involve higher marginal tax rates, while simultaneously providing less public good.

Political Competition and Mirrleesian Income Taxation: A First Pass

We study Downsian competition in a Mirrleesian model of income taxation. The competing politicians may differ in competence. If politicians engage in vote-share maximization, the less competent politician’s policy proposals are attractive to the minority of rich agents, whereas those of the competent politician are attractive to the majority of poor agents. The less competent politician wins with positive probability, which gives rise to a political failure in the sense of Besley and Coate (1998). Political failures are avoided if politicians maximize winning probabilities. Nevertheless, the two equilibria cannot be Pareto-ranked, the minority may be better off under vote-share maximization.

Central Banks, Regulatory Capture and Banking Supervision Reforms

Should central banks be in charge of micro-prudential as well as of macro-prudential supervision? This paper uses a formal model to analyze that question, and thereby informs the current reform efforts on the fields of banking supervision. Our main finding is that, while there are good reasons for central banks to conduct macroprudential supervision, it is socially optimal that another supervisor conducts micro-prudential supervision when supervisors’ capture by bankers is a concern