This article characterizes optimal policy when a government uses indirect control to exert its authority. We develop a dynamic principal-agent model in which a principal (a government) delegates the prevention of a disturbance--such as riots, protests, terrorism, crime, or tax evasion--to an...

We examine the determinants of cooperation and the effectiveness of deterrence when fear is a motive for conflict. We contrast results obtained in a complete information setting with those obtained in a setting with strategic risk, where players have different information about their...

Economists have long argued that the sex imbalance in developing countries is caused by underlying economic conditions. This paper uses exogenous increases in sex-specific agricultural income caused by post-Mao reforms in China to estimate the effects of total income and sex-specific income on...

We exploit regional variation in suitability for cultivating potatoes, together with time variation arising from their introduction to the Old World from the Americas, to estimate the impact of potatoes on Old World population and urbanization. Our results show that the introduction of the...