When is market incompleteness irrelevant for the price of aggregate risk (and when is it not)?

Dirk Krueger and Hanno Lustig

Journal of Economic Theory, 2010, vol. 145, issue 1, 1-41

Abstract: In a standard incomplete markets model with a continuum of households that have constant relative risk aversion (CRRA) preferences, the absence of insurance markets for idiosyncratic labor income risk has no effect on the premium for aggregate risk if the distribution of idiosyncratic risk is independent of aggregate shocks and aggregate consumption growth is independent over time. In equilibrium, households only use the stock market to smooth consumption; the bond market is inoperative. Furthermore, the cross-sectional distributions of wealth and consumption are not affected by aggregate shocks. These results hold regardless of the persistence of idiosyncratic shocks, even when households face tight solvency constraints. A weaker irrelevance result survives when we allow for predictability in aggregate consumption growth.

Keywords: Asset; pricing; Risk; sharing (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (65)

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Working Paper: When is Market Incompleteness Irrelevant for the Price of Aggregate Risk (and when is it not)? (2006)
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