Christoph Böhringer, Andreas Lange, Thomas Rutherford, 06 May 2010

Will unilateral emissions cap-and-trade schemes result in carbon leakage and provide a cover for protectionist policies? This column argues that these risks are overstated. Moreover, large open economies such as the EU or the US cannot substantially reduce pollution costs through competing on emission-prices and a simple rule of uniform pricing is close to optimal.

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