1. Rising markups and optimal redistributive taxation
- Author
-
Eren Gürer
- Subjects
Stylized fact ,Economics and Econometrics ,Market competition ,Accounting ,Labor income ,Economics ,Redistribution (cultural anthropology) ,Monetary economics ,Imperfect competition ,Profit (economics) ,Finance - Abstract
This study explores the implications of rising markups for optimal Mirrleesian income and profit taxation. Using a stylized model with two individuals, the main forces shaping welfare-optimal policies are analytically characterized. Although a higher profit tax has redistributive benefits, it adversely affects market competition, leading to a greater equilibrium cost-of-living. Rising markups directly contribute to a decline in optimal marginal taxes on labor income. The optimal policy response to higher markups includes increasingly relying on the profit tax to fund redistribution. Declining optimal marginal income taxes assist the redistributive function of the profit tax via contributing to the expansion of profit tax base. This response alone considerably increases the equilibrium cost-of-living. Nevertheless, every individual in the economy becomes better off with the optimal policy, except for the top earners, for whom the profits represent a major income source. If it is not possible to tax profits optimally, i.e., due to profit shifting, increasing redistribution via income taxes is not optimal; every individual, except for the top earners, is worse off relative to the scenario with optimal profit taxation.
- Published
- 2021
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