This paper analyzes hybrid emissions trading systems (ETS) under partitioned environmental regulation when firms' abatement costs and future emissions are uncertain. We show that hybrid policies that introduce bounds on the price or the quantity of abatement provide a way to hedge against...

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...

In the past 15 years, incentive-based environmental policy instruments, such as pollution taxes and tradeable pollution permits, have become an important supplement to tradition command-and-control instruments in Europe and the U.S. This paper proposes a positive theory of environmental...