Contingent valuation is now used around the world to value many types of public goods, including transportation, sanitation, health, and education, as well as the environment. The author describes how researchers go about making such surveys reliable, mentioning recent innovations in sampling,...

Approximately 20 years ago, Peter Diamond and I wrote an article for this journal analyzing contingent valuation methods. At that time Peter's view was that contingent valuation was hopeless, while I was dubious but somewhat more optimistic. But 20 years later, after millions of dollars of...

On March 23, 1989, the Exxon Valdez ran aground in Alaska's Prince William Sound and released over 250,000 barrels of crude oil, resulting in 1300 miles of oiled shoreline. The Exxon spill ignited a debate about the appropriate compensation for damages suffered, and among economists, a debate...

Without market outcomes for comparison, internal consistency tests, particularly adding-up tests, are needed for credibility. When tested, contingent valuation has failed. Proponents find surveys tested poorly done. To the authors' knowledge, no survey has passed these tests. The 'embedding...

The contingent valuation method, wherein sample surveys are used to elicit individuals' willingness to pay for certain types of policies, is playing an important role in government decision-making. The most prominent applications are in the valuation of damages to natural resources from oil...

A person may be willing to make an economic tradeoff to assure that a wilderness area or scenic resource is protected even if neither that person nor (perhaps) anyone else will actually visit this area. This tradeoff is commonly labeled "passive use value." Contingent valuation studies ask...

Many analysts presume that the appropriators of a common-pool resource are trapped in a Hobbesian state of nature and cannot themselves create rules to counteract the perverse incentives they face in managing the resource. The logical consequence of this view is to recommend that an external...

Local commons encompass a wide range of resources whose shared feature is the need for some form of collective management. In what follows, we shall be concerned mainly with the problems of implementing a collective management plan. Whatever the mechanisms invoked, many recent contributions to...

My purpose here is to provide a non-technical introduction to the economics of climate change. I will sketch the scientific background and uncertainties, survey the results of existing studies of the impacts of climate change, present a summary of a study of efficient policies to slow global...