Previous economic research has identified two ways policy to mitigate global climate change could be implemented without minimizing world costs. Costs are boosted when agreements to reduce greenhouse gas emissions are limited to a subset of countries or deadlines for reducing emissions force the...

The Porter hypothesis postulates that the costs of compliance with environmental standards may be offset by adoption of innovations they trigger. We model this hypothesis using a game of timing of technology adoption. We will show that times of adoption will be earlier if the non-adoption tax is...