During the Doha Round at the World Trade Organization, reductions in trade barriers on environmental goods (EG) were put forward as a means of helping developed and developing countries alike deal with current environmental problems. We examine the potential effectiveness of such a strategy in a...

Pollution abatement goods and services are now largely being delivered by a specialized "eco-industry". This note reconsiders Pigouvian taxes in this context. We find that the optimal emission tax will depart from the marginal social cost of pollution according to the polluters' and the...

We examine the e®ect of an emission tax when the abatement good or service is supplied by an imperfectly competitive eco-industry with free entry. We show that a higher tax always increases the number of ¯rms in the eco-industry whereas it has an ambiguous e®ect on indi- vidual and total...

We develop a three-stage model of abatement technology search, adoption, and deployment. Using this model, which draws on search theory tools more frequently used in labour and monetary economics, we compare market-based and command-and-control pollution control instruments with respect to the...

This paper examines the effect of emission taxes on pollution abatement and social welfare, when abatement goods and services are provided by a Cournot oligopoly with free-entry. We point out initially that a higher tax not only increases demand for abatement; it also makes polluters less...