Asset Pricing Implications of Pareto Optimality with Private Information

Working Paper: CEPR ID: DP4930

Authors: Narayana Kocherlakota; Luigi Pistaferri

Abstract: In this paper, we consider a dynamic economy in which the agents are privately informed about their skills, which evolve stochastically over time in an arbitrary fashion. We consider an asset pricing equilibrium in which equilibrium quantities are constrained Pareto optimal. Under the assumption that agents have constant relative risk aversion, we derive a novel asset pricing kernel for financial asset returns. The kernel equals the reciprocal of the gross growth of the x-th moment of the consumption distribution, where x is the coefficient of relative risk aversion. We use data from the Consumer Expenditure Survey (CEX) and show that the new stochastic discount factor performs better than existing stochastic discount factors at rationalizing the equity premium. However, its ability to simultaneously explain the equity premium and the expected return to the Treasury bill is about the same as existing discount factors.

Keywords: Asset Pricing; Consumer Expenditure Survey

JEL Codes: E21; G12


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
consumption distribution (D39)PIPO SDF (C69)
PIPO SDF (C69)equity premium (G12)
individual-specific shocks (D80)individual consumption (D19)
PIPO SDF (C69)expected return to treasury bills (E43)
moments of consumption distribution (D39)asset pricing (G19)

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