Life-Cycle Prices and Production

Mark Aguiar and Erik Hurst ()

American Economic Review, 2007, vol. 97, issue 5, pages 1533-1559

Abstract: We use scanner data and time diaries to document how households substitute time for money through shopping and home production. We document substantial heterogeneity in prices paid for identical goods for the same area and time, with older households shopping the most and paying the lowest prices. Doubling shopping frequency lowers a good's price by 7 to 10 percent. We estimate the shopper's price of time and use this series to estimate an elasticity of substitution between time and goods in home production of roughly 1.8. The observed life-cycle time allocation implies a consumption series that differs markedly from expenditures. (JEL D12, D91)

Date: 2007
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Working Paper: Lifecycle Prices and Production (2005)
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