One of the central debates surrounding the design of the European Union Emissions Trading Scheme is the approach to address carbon leakage concerns. Correctly identifying the economic activities exposed to the risk of carbon leakage represents the first step in mitigating the risk effectively....

A growing literature suggests that carbon emissions are most efficiently reduced by carbon pricing. The evidence base on the effectiveness of market-based mechanisms, however, faces three key limitations: studies often (a) predict, rather than evaluate effects, (b) show large difference in...