EPA is in the process of regulating U.S. greenhouse gas (GHG) emissions using its powers under the Clean Air Act. The likely next phase of this regulatory program is performance standards under Section 111 of the act for coal plants and petroleum refineries, which the agency has committed to...

While vintage differentiation is a highly prominent feature of various regulations, it can induce significant biases. We study these biases in the context of New Source Review-a program within the US Clean Air Act imposing costly sulfur dioxide (SO2) abatement requirements on new boilers but not...