Non-Linear Taxation with Monopsony Power
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Series
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SpeakerAlbert Jan Hummel (Erasmus University Rotterdam)
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FieldMacroeconomics
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LocationErasmus University, E Building, Room EB-12
Rotterdam -
Date and time
May 22, 2019
12:00 - 13:00
Abstract
Non-linear taxation with
monopsony power
There is growing concern
that the recent increase in industry concentration hurts workers and
contributes to rising inequality. How should policymakers respond, and what are
the welfare implications? This paper sheds light on these questions by studying
optimal income taxation in monopsonistic labor markets. I show that if firms
extract all surplus by setting both wages and working hours, the trade-off
between equity and efficiency vanishes. Optimal policy consists of a basic
income financed by a tax on profits and zero taxes on labor income. If profit
taxation is restricted the income tax serves to boost wages and erode profits.
Moreover, if hours are chosen by workers the government can use the
progressivity of the income tax to limit firms’ ability to extract rents.