Becker, Sascha O. and Hoffmann, Mathias. (2010) Equity fund ownership and the cross-regional diversification of household risk. Journal of Banking & Finance, 34 (1). pp. 90-102. ISSN 0378-4266

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Abstract

We explore the link between portfolio home bias and consumption risk sharing among Italian regions using household-level information on consumption, income and portfolio holdings. Since equity funds are typically diversified at the national or international level, we use data on equity fund ownership to proxy for regional home bias. Cross-regional patterns of equity fund ownership are qualitatively consistent with simple portfolio theory: regions with more asymmetric business cycles are more diversified because they have higher fund participation rates (the extensive margin of diversification) and higher average holdings of equity funds (diversification’s intensive margin). Also, fund holdings increase with the exposure of non-tradable income components (such as labor or entrepreneurial income) to regional shocks. Finally, interregional consumption risk sharing increases with fund holdings and this effect seems strongest when participation is widespread. Increased equity market participation could substantially improve interregional risk sharing.

Item Type:	Journal Article
Subjects:	H Social Sciences > HC Economic History and Conditions
Divisions:	Faculty of Social Sciences > Economics
Journal or Publication Title:	Journal of Banking & Finance
Publisher:	Elsevier Science BV
ISSN:	0378-4266
Date:	2010
Volume:	34
Number:	1
Number of Pages:	13
Page Range:	pp. 90-102
Identification Number:	10.1016/j.jbankfin.2009.07.005
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/45504

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