When a customer can borrow from several competing banks, multiple lending raises default risk. If creditor rights are poorly protected, this contractual externality can generate novel equilibria with strategic default and rationing, in addition to equilibria with excessive lending or...

We consider a simple model of competition under moral hazard with constant return technologies. We consider preferences that are not separable in effort: Marginal utility of leisure is assumed to increase with income, especially for high income levels. We show that, in this context, Bertrand...