Replication data for: International Trade in Used Vehicles: The Environmental Consequences of NAFTA

Since trade restrictions were eliminated in 2005, Mexico has imported over 2.5 million used vehicles from the United States. Using a unique, vehicle-level dataset, we find that traded vehicles are dirtier than the stock of vehicles in the United States and cleaner than the stock in Mexico, so when a vehicle is traded from the United States to Mexico average vehicle emissions per mile tend to decrease in both countries. Overall, however, the evidence suggests that trade has increased total lifetime emissions, primarily because of low vehicle retirement rates in Mexico. (JEL F13, F14, L62, O13, O19, Q53, Q56)

自2005年贸易限制取消以来，墨西哥已从美国进口逾250万辆二手机动车。依托一套独特的车辆级（vehicle-level）数据集，我们发现：被交易的机动车相较于美国本土车辆保有存量的排放水平更高，却低于墨西哥本土车辆保有存量；因此当机动车从美国销往墨西哥后，两国每英里平均机动车尾气排放量均有所下降。但总体而言，现有证据表明，贸易提升了机动车全生命周期总排放量，这主要归因于墨西哥较低的车辆报废率。（JEL F13, F14, L62, O13, O19, Q53, Q56）