governments establish the optimal city size when production processes involve environmental pollution. Our analysis delivers two … key insights. First, if an optimal scheme to regulate environmental pollution is implemented, cities chosen by local … governments are never too large. They are too small if pollution is purely global, but at the optimal size, if pollution is purely …

, environmental regulation, productivity, and consumer preferences have contributed to these reductions in pollution emissions. We … estimate the model's key parameters using administrative data on plant-level production and pollution decisions. We then … pollution changes. Finally, we compare the model-driven decomposition to a statistical decomposition. The model and data suggest …

Car exhaust is a major source of air pollution, but little is known about its impacts on population health. We exploit … - across the United States from 2008-2015 as a natural experiment to measure the health impact of car pollution. Using the … at all pollution levels and across the entire socioeconomic spectrum …

ambient air pollution on population health. For Germany and the years 1999 to 2008, we link the universe of all 170 million … hospital admissions, along with all 8 million deaths, with weather and pollution data reported at the day-county level. Extreme … simultaneous weather and pollution conditions. We find strong evidence for "harvesting", and that the instantaneous heat …

that have relatively similar backgrounds and tax systems: Australia, Canada, New Zealand, the UK, and the US. The first …

the age of about five years in Australia, Canada, the United Kingdom and the United States. We study a series of child … but the disparities are notably greater in the United States and the United Kingdom than in Australia, and particularly in … with SES across countries. While the smallest SES gaps are found in Australia and Canada for both types of outcome …