Learning, Ambiguity and Life-cycle Portfolio Allocation
AbstractIn the present paper I develop a life-cycle portfolio choice model where agents perceive stock returns to be ambiguous and are ambiguity averse. As in Epstein and Schneider (2005) part of the ambiguity vanishes over time as a consequence of learning over observed returns. The model shows that ambiguity alone can rationalize moderate stock market participation rates and conditional shares with reasonable participation costs but has strongly counterfactual implications for conditional allocations to stocks by age and wealth. When learning is allowed, conditional shares over the life-cycle are instead aligned with the empirical evidence and patterns of stock holdings over the wealth distribution get closer to the data.
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Bibliographic InfoPaper provided by Center for Research on Pensions and Welfare Policies, Turin (Italy) in its series CeRP Working Papers with number 80.
Length: 60 pages
Date of creation: Dec 2008
Date of revision:
portfolio choice; life-cycle; ambiguity; learning;
Find related papers by JEL classification:
- G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
- D91 - Microeconomics - - Intertemporal Choice - - - Intertemporal Household Choice; Life Cycle Models and Saving
- H55 - Public Economics - - National Government Expenditures and Related Policies - - - Social Security and Public Pensions
This paper has been announced in the following NEP Reports:
- NEP-ALL-2009-05-16 (All new papers)
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