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BPEA Article

The Buffer-Stock Theory of Saving: Some Macroeconomic Evidence

Abstract

As I WRITE, the U.S. economy remains mired in the slowest recovery from any recession in the postwar period. Consumer confidence and consumption spending, in particular, have been exceptionally weak, and the unemployment rate has continued to rise long after many other indicators began to improve. This paper presents evidence that these facts are related, in the sense that consumer pessimism about unemployment explains a substantial part of the recent weakness in consumption. However, neither theoretical consumption models commonly used for macroeconomic research nor standard macroeconometric forecasting models provide a direct role for unemployment expectations in determining current consumption.3 By contrast, this paper shows that the "buffer-stock" model of saving that has evolved from the work of Stephen Zeldes and Angus Deaton and from my previous work can imply a central role for unemployment expectations.

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