Can Metropolitan Housing Risk Be Diversified? A Cautionary Tale from the Recent Boom and Bust
68 Pages Posted: 12 Jul 2012 Last revised: 20 Jul 2012
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Can Metropolitan Housing Risk Be Diversified? A Cautionary Tale from the Recent Boom and Bust
Can Metropolitan Housing Risk Be Diversified? A Cautionary Tale from the Recent Boom and Bust
Date Written: July 11, 2012
Abstract
Geographic diversification is fundamental to risk mitigation among investors and insurers of housing, mortgages, and mortgage-related derivatives. To characterize diversification potential, we provide estimates of integration, spatial correlation, and contagion among US metropolitan housing markets. Results reveal a high and increasing level of integration among US markets over the decade of the 2000s, especially in California. We apply integration results to assess the risk of alternative housing investment portfolios. Portfolio simulation indicates reduced diversification potential and increased risk in the wake of estimated increases in metropolitan housing market integration. Research findings provide new insights regarding the synchronous non-performance of geographically-disparate MBS investments during the late 2000s.
Keywords: integration, correlation, contagion, house price returns
JEL Classification: G10, G11, G12, G14, R12, R21
Suggested Citation: Suggested Citation
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