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Excess Sensitivity of High-Income Consumers

Author

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  • Lorenz Kueng

    (University of Lugano - Faculty of Economics; Swiss Finance Institute; National Bureau of Economic Research (NBER); Centre for Economic Policy Research (CEPR); Northwestern University - Kellogg School of Management)

Abstract
Using new transaction data, I find considerable deviations from consumption smoothing in response to large, regular, predetermined, and salient payments from the Alaska Permanent Fund. On average, the marginal propensity to consume (MPC) is 25% for nondurables and services within one quarter of the payments. The MPC is heterogeneous, monotonically increasing with income, and the average is largely driven by high-income households with substantial amounts of liquid assets, who have MPCs above 50%. The account-level data and the properties of the payments rule out most previous explanations of excess sensitivity, including buffer stock models and rational inattention. How big are these "mistakes"? Using a sufficient statistics approach, I show that the welfare loss from excess sensitivity depends on the MPC and the relative payment size as a fraction of income. Since the lump-sum payments do not depend on income, the two statistics are negatively correlated such that the welfare losses are similar across households and small (less than 0.1% of wealth), despite the large MPCs.

Suggested Citation

  • Lorenz Kueng, 2020. "Excess Sensitivity of High-Income Consumers," Swiss Finance Institute Research Paper Series 20-33, Swiss Finance Institute.
    • Handle: RePEc:chf:rpseri:rp2033
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    Keywords

    consumption excess sensitivity; MPC heterogeneity; welfare loss;
    All these keywords.

    JEL classification:

    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions

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