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Benzoni, Luca
Collin-Dufresne, Pierre
Goldstein, Robert S.
Helwege, Jean
Year of Publication: 
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Working Paper, Federal Reserve Bank of Chicago 2012-04
We propose a tractable equilibrium model for pricing defaultable bonds that are subject to contagion risk. Contagion arises because agents with 'fragile beliefs' are uncertain about both the underlying state of the economy and the posterior probabilities associated with these states. As such, agents adopt a robust decision rule for updating that leads them to over-weight the posterior probabilities of 'bad' states. We estimate the model using panel data on sovereign Euro-zone CDS spreads during the recent crisis, and find that it captures levels and dynamics of spreads better than traditional affine models with the same number of observable and latent state variables.
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Working Paper

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