Optimal sin taxes |
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Institution: | 1. University of California, Los Angeles, United States;2. Maastricht University, Netherlands;3. University of California, Berkeley, CA, United States;4. NBER, United States;1. San Jose State University, United States;2. University of California, Los Angeles, United States;3. NBER, United States |
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Abstract: | We investigate “sin taxes” on unhealthy items, such as fatty foods, that people may (by their own reckoning) consume too much of. We employ a standard optimal-taxation framework, but replace the standard assumption that all consumers have 100% self control with an assumption that some consumers may have some degree of self-control problems. We show that imposing taxes on unhealthy items and returning the proceeds to consumers can generally improve total social surplus. Because such taxes counteract over-consumption by consumers with self-control problems while at the same time they naturally redistribute income to consumers with no self-control problems (who consume less), such taxes can even create Pareto improvements. Finally, we demonstrate with some simple numerical examples that even if the population exhibits relatively few self-control problems, optimal taxes can still be large. |
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