We study the optimal quota sequence, in a stationary environment, where a regulator and a non-strategic firm have asymmetric information. The regulator is able to learn about the unknown cost parameter by using a quota that is slack with positive probability. It is never optimal for the...

There is extreme heterogeneity of firms regulated under the European Emissions Trading Scheme (EU ETS) in terms of emissions evels and employed technology. We present a model that shows that behavior of firms under quantity regulation can differ strongly, dependent on the characteristics of the...

This paper reviews lessons that can be learned from U.S. experiences with market-based environmental policies and from related research. Highlights of U.S. experience are summarized with four categories of policy instruments: pollution charges; tradable permits; market friction reductions; and...