Joint Labour Search and the Taxation of Couples

Spatial, International and Macroeconomics Seminar
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We study the effects of joint progressive taxation on employment and wages when labour markets are frictional, building an equilibrium random-search model with two-worker households and incomplete asset markets. Households jointly decide on search effort off- and on-the job, voluntary quits, and consumption and savings.

Speaker
Piotr Denderski
Date
Monday 1 Sep 2025, 15:00 - 16:00
Type
Seminar
Room
1.19
Building
Langeveld Building
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(Joint work with Leo Kaas, Bastian Schulz, Nawid Siassi)

Firms post vacancies in anticipation of households’ choices. We calibrate the model to the U.S. data and study counterfactual tax reforms. When faced with single filing and lower progressivity, employees search harder as gains from climbing the job ladder are greater. This increases wages and decreases expected duration of filled jobs. Less progressive tax system encourages more savings which prompts the non-employed to search less intensely due to a negative wealth effect. As a result, firms create fewer vacancies and non-employment increases. 

Registration for bilateral, lunch or dinner

Lunch will be provided. If you would like to meet the guest speaker for a bilateral, join for lunch or dinner, then please register by filling in the registration form.

See also

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