“…According to the Pollution Abatement Costs and Expenditures (PACE) survey, the U.S. manufacturing sector spent nearly $21 billion dollars on pollution abatement operating costs (PAOC) to comply with environmental regulations in 2005 (U.S. Census Bureau 2008). Policymakers are especially interested in how these regulations affect the economy, and there is a growing literature on the effects of environmental regulations on various plant-level outcomes, including productivity (Berman and Bui 2001a;Gray and Shadbegian 2002, 2003, 2006Shadbegian and Gray 2005;Becker 2011b;Greenstone, List, and Syverson 2012), investment (Gray and Shadbegian 1998), location (Becker and Henderson 2000;List et al 2003) and employment (Berman and Bui 2001b;Morgenstern, Pizer, and Shih 2002;and Greenstone 2002).…”