A basic problem facing most labour markets is that workers can neither commit to long-term wage contracts nor can they self-finance the costs of production. I study the effects of these imperfections when talent is industry-specific; it can only be revealed on the job, and once learnt becomes...

I look for divisions to clusters among academic departments in three disciplines: economics, mathematics, and comparative literature. I define clusters as subsets of departments with unexpectedly little hiring across the cluster lines. The division within economics is by far the strongest, is...

We present a framework for studying the relation between the distribution of income and the distribution of housing prices that is based on an assignment model of households with heterogeneous incomes and houses of heterogeneous quality. The equilibrium distribution of prices depends on both...

We present an infinite-horizon model of moral standards where self-esteem and unconscious drives play key roles. In the model, an individual receives random temptations (such as bribe offers) and must decide which to resist. Individual actions depend both on conscious intent and a type...

This paper studies the role of transfer fees in professional sports, where players can commit to binding long-term contracts. They cannot switch clubs before their contract expires unless the old club agrees to let them go; the transfer fee is the price of that agreement. Transfer fees have been...