On November 8, 1996, various Environmental Protection Agency (EPA) officials, scholars and industry representatives gathered at Resources for the Future (RFF) to examine the EPA's method for classifying private SO2 allowance transactions by the Allowance Tracking System (ATS). The one-day...

The SO2 trading program has achieved reductions in emissions ahead of schedule, with allowance prices below the marginal costs that were anticipated for the program. This paper explores the experience with the program and proposes a taxonomy of reasons why allowance prices are low. The...