How should international economic policy address climate change? Does trade cause deforestation and endangered species depletion? How does globalization affect air and water pollution? Do trade and investment create a race to the bottom in environmental policy? How important are environmental...

The demand for air quality depends on health impacts and defensive investments, but little research assesses the empirical importance of defenses. A rich quasi-experiment suggests that the Nitrogen Oxides (NO_x) Budget Program (NBP), a cap-and-trade market, decreased NO_x emissions, ambient ozone...