Using a stacked differences-in-differences approach, we study the effects of Low Emission Zones (LEZs) in Germany. The implementation of stage 1 and 2 LEZs, which banned the most pollution-intensive vehicles from city centers, significantly reduced PM10 concentrations. The most restrictive third...

This paper seeks to analyze the evolution of the Bolivian vehicle stock in the mid-term and its policy implications. First, we analyze the relationship between income and vehicle ownership in the country during the period 1970 - 2017 through robust econometric techniques. Based on these results,...

Pigouvian taxes can fully correct for market failures due to externalities, but actual policies are commonly forced to deviate from the Pigouvian ideal due to administrative or political constraints. This paper derives sufficient statistics, which require a minimum of market information, that...