This paper analyzes sin goods consumption when individuals exhibit present-focused preferences. It considers three types of present focus: present-bias with varying degrees of naiveté, Gul-Pesendorfer preferences, and a dual-self approach. We investigate the incentives to deviate from healthy...

The income tax system has become quite a mess. Unfortunately, the brunt of that mess falls primarily on the backs of the individual taxpayers, who are required to sift through the tens of thousands of pages of instructions and tax rules just to calculate, file, and pay what they owe. The filing...

We study implications of habit formation for optimal taxation. First, we show that taxation problems with habit formation can be analyzed using dynamic programming techniques. Second, we derive optimal labor and savings wedges for habit formation preferences. We show that habit formation...

In 1999 the EU abolished duty-free on intra-EU travel, whilst other countries still retain duty-free shopping for international travellers. We adress several aspects of duty-free trade, including effects on consumption, revenue and price-setting. From a global perspective we identify the...

The traditional understanding of broad-based tax systems contrasts an income tax with all forms of a consumption tax. The income tax, alone, includes the yield to capital in its base; consumption taxes do not. Simple financial analysis demonstrates the equivalence of the two most common classes...

Recent empirical work finds that consumers under-account for commodity taxes when the after-tax price is not prominent. I investigate how policymakers may utilize such “low-salience” taxes to promote welfare. The optimal combination of high- and low-salience taxes balances two competing...

This paper presents a model of optimal labor income taxation where top incomes respond to marginal tax rates through three channels: (1) standard labor supply, (2) tax avoidance, (3) compensation bargaining. We derive the optimal top tax rate formula as a function of the three corresponding...