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Asset pricing with limited risk sharing and heterogeneous agents

By Francisco Gomes and Alexander Michaelides

Abstract

We solve a model with incomplete markets and heterogeneous agents that generates a large equity premium, while simultaneously matching stock market participation and individual asset holdings. The high risk premium is driven by incomplete risk sharing among stockholders, which results from the combination of aggregate uncertainty, borrowing constraints and a (realistically) calibrated life-cycle earnings profile subject to idiosyncratic shocks. We show that it is challenging to simultaneously match asset pricing moments and individual portfolio decisions, while limited participation has a negligible impact on the risk premium, contrary to the results of models where it is imposed exogenously

Topics: HG Finance
Publisher: Centre for Economic Policy Research
Year: 2007
OAI identifier: oai:eprints.lse.ac.uk:5360
Provided by: LSE Research Online
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