Rare disasters and the equity risk premium in a two-country world

Copeland, L. and Zhu, Y. (2009) Rare disasters and the equity risk premium in a two-country world. In: 5th Conference of the Portuguese Finance Network in Coimbra , Coimbra, July 2008.

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Publisher's URL: http://www.uc.pt/en/tomenota/2008/20080709/

Abstract

We extend the Barro (2006) closed-economy model of the equity risk premium in the presence of extreme events ("disasters") to a two-country world. In this more general setting, both the output risk of rare disasters and the associated risk of a default on Government debt, can be diversi�ed. The extent to which agents in one country can diversify away the risk of extreme events depends on the relative size of the two countries, and critically on the probability of a disaster in one country conditional on a disaster in the other. We show that, using Barro�s own calibration in combination with a broad range of plausible values for the additional parameters, the model implies levels of the equity risk premium far lower than those typically observed in the data. We conclude that the model is unlikely to explain the equity risk premium.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:equity premium, disaster
Faculty/Department:Faculty of Business and Law > Department of Accounting, Economics and Finance
ID Code:13601
Deposited By: Dr Y. Zhu
Deposited On:19 Jan 2011 14:47
Last Modified:27 Jun 2014 09:27

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