This work develops a portfolio model of the banking firm where both the size and composition of the portfolio are jointly determined. The model provides a quite simple micro-foundation of the credit channel of the transmission of monetary policy. It allows analysing the pricing policies of the...

Pareto-efficient consumption in a pure-exchange, one good economy varies over states of nature with respect to only two factors: real aggregate supply and individual utility shocks. One’s optimal contract receipts vary with respect to only these two factors and the ratio of one’s endowment...

This paper uses dynamic general equilibrium models to quantitatively test the idea that technical change caused the stock market collapse of the mid 1970's, its subsequent stagnation, and recovery. First, I consider the hypothesis that the arrival of information technologies (IT) rendered old...