The precaution of the rich and poor
AbstractDo households use savings to buffer against income fluctuations? Despite its common use to understand household savings decisions, the evidence for the buffer-stock model is surprisingly weak and inconsistent. This paper develops new testable implications based on a property of the model that the assets that households target for precautionary reasons should encapsulate all preferences and risks and the target should scale one for one with permanent income. I test these implications using the Survey of Consumer Finances in the United States. Those with incomes over $60,000 fit the model predictions very well, but below $60,000 households become increasingly precautionary. Income uncertainty is unrelated to the level of precaution. Moreover, households hold substantially weaker precautionary tendencies than standard models with yearly income shocks predict. Instead I propose and estimate a model of monthly disposable income shocks and a minimum subsistence level that can accommodate these findings.
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Bibliographic InfoPaper provided by Boston College Department of Economics in its series Boston College Working Papers in Economics with number 814.
Date of creation: 15 Sep 2012
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Buffer-stock model; Precaution; Household finance;
Find related papers by JEL classification:
- E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
- D91 - Microeconomics - - Intertemporal Choice - - - Intertemporal Household Choice; Life Cycle Models and Saving
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