Sentiment, Asset Prices, and Systemic Risk
Swiss Finance Institute at the University of Lugano; Swiss Finance Institute
Ecole Polytechnique Fédérale de Lausanne; Swiss Finance Institute
Santa Clara University - Leavey School of Business
March 20, 2012
Swiss Finance Institute Research Paper No. 11-50
Regulators charged with monitoring systemic risk need to focus on sentiment as well as narrowly defined measures of systemic risk. This chapter describes techniques for jointly monitoring the co-evolution of sentiment and systemic risk. To measure systemic risk, we use Marginal Expected Shortfall. To measure sentiment, we apply a behavioral extension of traditional pricing kernel theory, which we supplement with external proxies. We illustrate the technique by analyzing the dynamics of sentiment before, during, and after the global financial crisis which erupted in September 2008. Using stock and options data for the S&P 500 during the period 2002–2009, our analysis documents the statistical relationship between sentiment and systemic risk.
Number of Pages in PDF File: 31
Keywords: systemic risk, marginal expected shortfall, pricing kernel, overconfidence, optimism
JEL Classification: E61, G01, G02, G28working papers series
Date posted: November 3, 2011 ; Last revised: March 21, 2012
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