Consumption Insurance against Wage Risk: Family Labor Supply and Optimal Progressive Income Taxation

Chunzan Wu and Dirk Krueger

American Economic Journal: Macroeconomics, 2021, vol. 13, issue 1, 79-113

Abstract: We show that a calibrated life cycle two-earner household model with endogenous labor supply can rationalize the extent of consumption insurance against shocks to male and female wages, as estimated empirically by Blundell, Pistaferri, and Saporta-Eksten (2016) in US data. In the model, 35 percent of male and 18 percent of female permanent wage shocks pass through to consumption, compared to the empirical estimates of 32 percent and 19 percent. Most of the consumption insurance against permanent male wage shocks is provided through the presence and labor supply response of the female earner. Abstracting from this private intrahousehold income insurance mechanism strongly biases upward the welfare losses from idiosyncratic wage risk as well as the desired extent of public insurance through progressive income taxation. Relative to the standard one-earner life cycle model, the optimal degree of tax progressivity is significantly lower and the welfare gains from implementing the optimal system are cut roughly in half.

JEL-codes: D15 H21 H24 J16 J22 J31 (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (34)

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Working Paper: Consumption Insurance Against Wage Risk: Family Labor Supply and Optimal Progressive Income Taxation (2019)
Working Paper: Consumption Insurance Against Wage Risk: Family Labor Supply and Optimal Progressive Income Taxation (2019)
Working Paper: Consumption Insurance Against Wage Risk: Family Labor Supply and Optimal Progressive Income Taxation (2019)
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DOI: 10.1257/mac.20180125

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