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		| Joseph G.  Eisenhauer | 
	
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		| ''Approximation bias in estimating risk aversion'' | 
	
		| ( 2003, Vol. 4 No.38 ) | 
	
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		| The asymmetric approximation originally employed by Pratt (1964) to construct reduced-form measures of risk aversion  s a downward bias when used for empirical estimation.  Calculations based on recent survey data indicate that estimates from a symmetric approximation are generally three times larger than their asymmetric counterparts, a finding that may help to explain the equity premium puzzle. | 
	
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		| Keywords: | 
	
		| JEL: D8 - Information, Knowledge, and Uncertainty: General 
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		| | Manuscript Received : Nov 14 2003 |  | Manuscript Accepted : Dec 19 2003 | 
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