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A Note On Mitigating The Adverse Scale Effects Associated With Daily Driving Restrictions, Arthur J. Caplan, Man-Keun Kim

Applied Economics Faculty Publications

This paper investigates the role of additional regulation in mitigating the “adverse scale effect” associated with daily driving restrictions, which has become a popular regulatory tool used to control episodic air pollution internationally, especially in developing countries. We find that although an annual vehicle registration tax reduces the incentive to purchase additional vehicles among households whose sole purpose for doing so is to “cheat” the restriction (i.e., the “adverse scale effect”), it does so with an external cost. The cost occurs because households whose purpose for purchasing an additional vehicle is not to cheat the restriction are given the same …