The OECD Trade and Environment Working Paper series is designed to make available to a wide readership selected studies by OECD staff or by outside consultants. The views expressed are those of the authors and do not necessarily reflect the official views of the OECD or of the governments of its member countries or those of the European Union. This document and any map included herein are without prejudice to the status of or sovereignty over any territory, to the delimitation of international frontiers and boundaries, and to the name of any territory, city or area.

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The OECD Trade and Environment Working Paper series is designed to make available to a wide readership selected studies by OECD staff or by outside consultants. The views expressed are those of the authors and do not necessarily reflect the official views of the OECD or of the governments of its member countries or those of the European Union. This document and any map included herein are without prejudice to the status of or sovereignty over any territory, to the delimitation of international frontiers and boundaries, and to the name of any territory, city or area.