In the abscence of a global agreement to reduce greenhouse gas emissions, individual countries have introduced national climate policies. Unilateral action involves the risk of relocating emissions to regions without climate regulations, i.e., emission leakage. A major channel for leakage are...

Climate effects of unilateral carbon policies are undermined by carbon leakage. To counteract leakage and increase global cost-effectiveness carbon tariffs can be imposed on the emissions embodied in imports from non-regulating regions. We present a theoretical analysis on the economic...