Incentive Constrained Risk Sharing, Segmentation, and Asset Pricing
Incentive problems make securities’ payoffs imperfectly pledgeable, limiting agents’ ability to issue liabilities. We analyze the equilibrium consequences of such endogenous incompleteness in a dynamic exchange economy. Because markets are endogenously incomplete, agents have different intertemporal marginal rates of substitution, so that they value assets differently. Consequently, agents hold different portfolios. This leads to endogenous markets segmentation, which we characterize with Optimal Trans-port methods. Moreover, there is a basis going always in the same direction: the price of a security is lower than that of replicating portfolios of long positions. Finally, equilibrium expected returns are concave in factor loadings.
Published Versions
Bruno Biais & Johan Hombert & Pierre-Olivier Weill, 2021. "Incentive Constrained Risk Sharing, Segmentation, and Asset Pricing," American Economic Review, vol 111(11), pages 3575-3610. citation courtesy of