We study economies of scale in banking by viewing banks as combinations of financial and human capital that create rents which accrue to investors and bankers. Applying this approach to annual data of US bank holding companies since 1990, we find much stronger evidence of economies of scale in...

We study managerial incentive provision under moral hazard in a firm subject to stochastic growth opportunities. In our model, managers are dismissed after poor performance, but also when an alternative manager is more capable of growing the firm. The optimal contract may involve managerial...

We analyze the effects of the observed increased share of delegated capital for trading strategies and equilibrium prices by introducing delegation into a standard Lucas exchange economy. In equilibrium, some investors trade on their own account, but others decide to delegate trading to...