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국민대학교 경상대학

경제연구소 经济研究所

KIER Working Paper

Optimal Dynamic Taxation with Vehicle Fuel Efficiency: Pigou meets Ramsey

요약

This paper theoretically characterizes durable nature of vehicles and then quantifies secondbest optimal gasoline taxes of vehicles in a dynamic general equilibrium. To capture the  durable nature of vehicles in the model, we incorporate the putty-clay nature of the way transportation capital (vehicles) and gasoline are combined to “produce” vehicle mile of 

 

travel. Once the durable nature of vehicles is determined, people can only decide how often to utilize the vehicles and how much to drive. A social planner induces households internalize 
external costs of vehicle utilization (air pollution and traffic congestion) by imposing Pigouvian taxes, and then chooses quantities to maximize social welfare. Under the puttyclay
structure, as the gasoline price rises by one percent, a representative household drives less and uses the immediate savings from reduction of gasoline consumption to 3.5% more of 
fuel efficiency of new vehicles.

핵심용어 : Fuel efficiency; Ramsey Taxation; Pigouvian Taxation

JEL 주제분류 : H21, H23, Q43, E22, Q48