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The Permanent Income Hypothesis and Consumption Durability: Analysis Based on Japanese Panel Data

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  • Fumio Hayashi

Abstract

The permanent income hypothesis is tested on a four-quarter panel of about two thousand Japanese households for ten commodity groups. Consumption is a distributed lag function of expenditures, and the utility function is additively separable in time. Durability is defined as the persistence of the distributed lag. The permanent income hypothesis implies that, for each commodity group, expected change in expenditures is correlated neither with past expenditure changes on other commodities nor with expected change indisposable income, if its own lags are controlled for. The main results are the following: (1) durability is substantial even for food and services, (2)the permanent income hypothesis applies to almost all (probably more than ninety percent) of the population, and (3) the habit persistence hypothesis is rejected in favor of the permanent income hypothesis.

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  • Fumio Hayashi, 1984. "The Permanent Income Hypothesis and Consumption Durability: Analysis Based on Japanese Panel Data," NBER Working Papers 1305, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:1305 Note: EFG
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    1. Hall, Robert E & Mishkin, Frederic S, 1982. "The Sensitivity of Consumption to Transitory Income: Estimates from Panel Data on Households," Econometrica, Econometric Society, vol. 50(2), pages 461-481, March.
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