International environmental cooperation is difficult because states disagree on burden sharing and have incentives to free ride. However, interested countries can promote future cooperation through unilateral action that induces technological change in and, thereby, shapes the preferences of...

The consequences of global warming are uncertain and possibly irreversible. In this article, I investigate the value of early mitigation action given these uncertainties and irreversibilities. I complement standard economic techniques with a political analysis: in the model, an incumbent...

The surge of local climate policy is a puzzling political-economic phenomenon. Why have local policy-makers, incapable of mitigating global warming through individual emissions reductions, adopted ambitious policies while national governments refrain from action? I construct a game-theoretic...