This paper solves the global cap-and-trade game exactly as the public-goods game is normally solved and finds a problematic outcome. Abatement of greenhouse gas emissions is a global public good, and supplying a public good is a game with strong incentives to free ride. Adding a cap-and-trade...

“Hopes are fading that a strong treaty will emerge from next month’s negotiations in Copenhagen,” according to Nature Geoscience (2009/11). This short book starts from Nature’s critique of the “targets and timetables” approach to international agreement and describes an international...

The Kyoto Protocol’s approach of assigning emission targets, or “caps,” exacerbates problems with international cooperation and commitment. This has caused the developing countries, which account for the fastest growing half of emissions, to reject caps. Global carbon pricing addresses...

Climate negotiations have largely failed, so a change of course is required. This requires that a sizable group of experts recommend a small, clear set of policy guideposts that lead to a more cooperative treaty. This papers proposes a set of three guideposts and derives them from an analysis of...

Greenhouse gas abatement is a public good, so climate policy is a public-goods game and suffers from the free-rider incentives that make the outcome of such games notoriously uncooperative. Adopting an international agreement can change the nature of the game, reducing or exacerbating the...