This paper develops a new sufficient statistic approach for estimating the marginal internality from sin good consumption. It models a biased consumer who faces uncertain health harms and receives mandatory health insurance. I show that the marginal internality can be identified by observing how...

This paper analyzes how internal debt financing of multinational firms affects high-tax countries. It uses a dynamic small open economy model and takes into account that internal debt impacts both the multinational firms’ investment decisions and the government's tax policy. The government has...

Rising prevalence of obesity among adults and children is a major policy issue in many countries. Two widely discussed instruments to address obesity are a tax on unhealthy foods (fat tax) and a subsidy on healthy foods (thin subsidy). We compare these two policies to a sales tax on all food...

Internal debt financing can be used by multinational firms to shift profits from high-tax to low-tax countries. Governments apply thin capitalization rules (TCRs), which limit the deductibility of interest expenses, to restrict this behavior. TCRs fall in two main categories: safe haven rules...

Rising prevalence of obesity among adults and children is a major policy issue in many countries. Two widely discussed instruments to address obesity are a tax on unhealthy foods (fat tax) and a subsidy on healthy foods (thin subsidy). We compare these two policies to a sales tax on all food...

If an individual's health costs are U-shaped in weight with a minimum at some healthy level and if the individual has both self-control problems and rational motives for over- or underweight, the optimal paternalistic tax on calorie intake mitigates the individual's weight problem (intensive...