Abstract
Anticipated and unilateral climate policies are ineffective when fossil fuel owners respond by shifting supply intertemporally (the green paradox) or spatially (carbon leakage). These mechanisms rely crucially on the exhaustibility of fossil fuels. We analyze the effect of anticipated and unilateral climate policies on emissions in a simple model with two fossil fuels: one scarce and dirty (oil), the other abundant and dirtier (coal). We derive conditions for a ’green orthodox’: anticipated climate policy may reduce current emissions, and unilateral measures may unintentionally reduce emissions in other countries. Calibrations suggest that intertemporal carbon leakage (between -3% and 1%) is less of a concern than spatial leakage (19-39%).
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