between income level and pollution). The new specification enables us to draw conclusions from fixed effects estimation. In …

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 …

the country level with data on pollution intensity at the industry level to show that countries with laxer environmental …. We propose an instrument for environmental regulation based on meteorological determinants of pollution dispersion identi …...ed by the atmospheric pollution literature. We find that the effect of environmental regulation on the pattern of trade is …

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