This article proposes and evaluates four hypotheses about US pollution and environmental policy over the last half … century. First, air and water pollution have declined substantially, although greenhouse gas emissions have not. Second …, environmental policy explains a large share of these trends. Third, much of the regulation of air and drinking water pollution has …

(1) The U.S. share of the world's science and engineering graduates is declining rapidly as European and Asian …

During the past two decades, there has been a dramatic change in IPO activity around the world. Though vibrant IPO … the U.S. has fallen compared to the rest of the world and U.S. firms go public less than expected based on the economic …

, and reduced corporate pollution among firms that (a) release the specific chemicals covered by Apex and (b) are close to … suggest that creditors rapidly responded to Apex and successfully induced firms to reduce pollution …

builds a framework to detect whether local governments skip air pollution monitoring when they expect air quality to … deteriorate. We infer this expectation from air quality alerts - public advisories based on local governments' own pollution … individual pollution monitor in Jersey City, NJ, suspected of a deliberate shutdown during the 2013 "Bridgegate" traffic jam …