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Journal of Banking & Finance Vol. 128 2021

Collateralization and asset price bubbles when investors disagree about risk

Tobias Broer1,2,3,4; Afroditi Kero5

1 Stockholm University · 2 Paris Jourdan Sciences Economiques · 3 Centre for Economic Policy Research · 4 Paris School of Economics · 5 Neapolis University Pafos

Abstract

Survey respondents disagree strongly about the dispersion of future returns and, increasingly, macroeconomic uncertainty. Such disagreement about risk may raise asset prices when collateralized debt products allow investors to realize perceived gains from trade. Investors who expect low volatility in collateral cash-flow appreciate senior debt as riskless. Those who expect high volatility, in contrast, value the upside potential in junior debt or equity claims. We show how such self-selection may have had a sizeable effect on the prices of RMBS and CDOs before the crisis, as investors disagreed about the volatility of aggregate economic conditions and their importance for default rates in collateral pools.

DOI
10.1016/j.jbankfin.2021.106137
Volume
128
Pages
106137
Language
en
Sources
openalex crossref bibtex:phds-export.bib

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