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Aggregate Savings When Individual Income Varies

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Abstract

This paper examines aggregate savings in a general equilibrium model where infinitely lived households face volatile (and possibly uncertain) income paths, hold a risk-free asset, and face a liquidity constraint. I first show that the equilibrium capital stock in an economy without uncertainty, but where individual income varies, can be larger than in an economy where each household's income is constant. When income is stochastic, the equilibrium capital stock is always larger than when income is constant. This additional capital accumulation has sometimes been interpreted as precautionary savings, but I demonstrate that it is mostly generated by permanent-income motives.

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  • Floden, Martin, 2005. "Aggregate Savings When Individual Income Varies," SSE/EFI Working Paper Series in Economics and Finance 591, Stockholm School of Economics.
    • Handle: RePEc:hhs:hastef:0591
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    Cited by:

    1. Martin Flodén, 2006. "Labour Supply and Saving Under Uncertainty," Economic Journal, Royal Economic Society, vol. 116(513), pages 721-737, July.
    2. Bianca De Paoli & Pawel Zabczyk, 2013. "Cyclical Risk Aversion, Precautionary Saving, and Monetary Policy," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 45(1), pages 1-36, February.
    3. Feigenbaum, James, 2011. "Precautionary saving or denied dissaving," Economic Modelling, Elsevier, vol. 28(4), pages 1559-1572, July.
    4. Tiago Berriel & Rodrigo Abreu, 2015. "Long Term Debt and Credit Crisis in a Liquidity Constrained Economy," Textos para discussão 644, Department of Economics PUC-Rio (Brazil).

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    Keywords

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    JEL classification:

    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth

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