Microfinance currently experiences a huge inflow of private investors and a surge in the use of market instruments. This raises the question of what market equilibria in microfinance markets look like and which kinds of market failure tend to afflict them. The present paper conducts an...

This paper gives a complete characterization of the equilibria in Shleifer and Vishny's (1997) model of "Limits of Arbitrage". We show that expected wealth (the arbitrageurs' objective function) is a possibly non-concave function of investment and that the relation between investment and prices...

This paper analyzes a North-South trade model with costly offshoring and equilibrium unemployment due to union wage setting. Reductions in the amount of resources required in the offshoring process usually decrease employment, though the opposite can happen at a low initial level of offshoring...

Contrary to what is consistently assumed in the literature, the return function cannot be hump-shaped in the Stiglitz-Weiss (1981) model. This has important consequences for the possible occurrence of credit rationing and redlining. With a single class of borrowers, banks offer credit in two...

This paper gives a complete characterization of the equilibria in Shleifer and Vishny's (1997) model of "Limits of Arbitrage". We show that expected wealth (the arbitrageurs' objective function) is a possibly non-concave function of investment and that the relation between investment and prices...