In September 2011, the US Environmental Protection Agency asked 12 economists how the benefits and costs of regulations should be discounted for projects that affect future generations. This paper summarizes the views of the panel on three topics: the use of the Ramsey formula as an organizing...

Carbon markets are substantial and they are expanding. There are many lessons from market experiences over the past eight years: there should be fewer free allowances, better management of market-sensitive information, and a recognition that trading systems require adjustments that have...

In September 2011, the US Environmental Protection Agency asked 12 economists how the benefits and costs of regulations should be discounted for projects that affect future generations. This paper summarizes the views of the panel on three topics -- the use of the Ramsey formula as an organizing...

Carbon markets are substantial and they are expanding. There are many lessons from experiences over the past eight years -- fewer free allowances, better management of market-sensitive information, and a recognition that trading systems require adjustments that have consequences for market...