Ambiguity Preferences and Portfolio Choices

Bianchi, Milo and Tallon, Jean-Marc (2018) Ambiguity Preferences and Portfolio Choices: Evidence from the Field. Management Science. (In Press)

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Official URL: http://tse-fr.eu/pub/32197

Abstract

We match administrative panel data on portfolio choices with survey data on preferences over ambiguity. We show that ambiguity averse investors bear more risk, due to a lack of diversiÖcation. In particular, they exhibit a form of home bias that leads to higher exposure to the domestic relative to the international stock market. While more sensitive to market factors, their returns are on average higher, suggesting that ambiguity averse investors need not be driven out of the market for risky assets. We also show that these investors rebalance their portfolio more actively and in a contrarian direction relative to past market trends, which allow them to keep their risk exposure relatively constant over time. We discuss these Öndings in relation to the theoretical literature on portfolio choice under ambiguity.

Item Type: Article
Sub-title: Evidence from the Field
Language: English
Date: 2018
Refereed: Yes
Subjects: B- ECONOMIE ET FINANCE
Divisions: TSE-R (Toulouse)
Site: UT1
Date Deposited: 16 May 2018 14:13
Last Modified: 16 May 2018 14:13
OAI ID: oai:tse-fr.eu:32197
URI: http://publications.ut-capitole.fr/id/eprint/25755

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