One examines strategies of pollution control through choices between taxes and tradable permits, supposed to be decided at several time periods t1, t2,..., ti. At each of these time periods, the choice depends on the solution of a dynamic programming problem involving the expectations of the...

Under the Kyoto Protocol, industrialized countries committed to emission reductions may fullfil part of their obligations by implementing emission reduction projects in developing countries. In doing so, they make use of the so-called Clean DevelopmentMechanism (CDM). Two important issues...