We study optimal risk adjustment in imperfectly competitive health insurance markets when high-risk consumers are less likely to switch insurer than low-risk consumers. First, we find that insurers still have an incentive to select even if risk adjustment perfectly corrects for cost differences...

The financial crisis has been attributed partly to perverse incentives for traders at banks and has led policy makers to propose regulation of banks' remuneration packages. We explain why poor incentives for traders cannot be fully resolved by only regulating the bank's top executives, and why...

It is well known that tariff policy can alleviate the negative consequences of breaching intellectual property rights by foreign firms. Yet, the positive effect of tariff protection is thought to be the benefit firms get at the expense of consumers (at least in the short run). Using a set-up in...