Risk-neutral pricing dictates that the discounted derivative price is a martingale in a measure equivalent to the economic measure. The residual ambiguity for incomplete markets is here resolved by minimizing the entropy of the price measure from the economic measure, subject to mark-to-market...

Significant variation in the terms and volume of lending across classes of borrowers distinguished only by qualities independent of credit risk is often interpreted as evidence of inefficient or inequitable discrimination in credit markets. Increasing accuracy in the measure of credit risk...

We study the impact of financial innovations on real investment decisions within the framework of an incomplete market economy comprised of firms, investors, and an intermediary. The firms face unique investment opportunities that arise in their business operations and can be undertaken at given...

This paper considers the implications of habit formation and financial frictions for the propagation of macroeconomic shocks. In a model that is capable of matching asset pricing moments, a short-lived shock that destroys a small fraction of the economy's stock of pledgeable collateral generates...

This paper studies the effects of imperfect risk-sharing between lenders and borrowers on commercial property prices and leverage. The key friction is that agents use different discount rates to evaluate future flows. Eliminating this pecuniary externality generates large reductions in the...

I explore the relationship between financial frictions and asset prices in a closed economy model, and study the implications for the leverage cycle of financial intermediaries. I develop a continuous-time dynamic macroeconomic model with heterogeneous agents and limited stock market...

In this paper, we study the effect of proportional transaction costs on consumption-portfolio decisions and asset prices in a dynamic general equilibrium economy with a financial market that has a single-period bond and two risky stocks, one of which incurs the transaction cost. Our model has...

In this paper, we study the effect of proportional transaction costs on consumption- portfolio decisions and asset prices in a dynamic general equilibrium economy with a financial market that has a single-period bond and two risky stocks, one of which incurs the transaction cost. Our model has...