In the standard neoclassical model, when two countries with disparate capital levels open to trade, the capital-rich country exports capital to the capital-poor country. This hastens growth in the poor country and generates income for the rich country, to the benefit of both. Real countries do...

A firm monopsonistically hires labor from a pool containing both skilled and unskilled workers. The marginal value of a worker depends on the match between the job and the worker's skill level. Unskilled workers can have negative productivity if they are placed in a skilled job. The firm cannot...

We consider the problem of a principle who wishes to induce two agents playing a one shot prisoner's dilemma to behave cooperatively. We assume that the principal cannot observe the actions of the agents, and is not able to change the strategy sets or payoff functions in the underlying game. The...