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Currencies And The Commodification Of Environmental Law, J.B. Ruhl, James Salzman

Vanderbilt Law School Faculty Publications

The success of several environmental trading markets (ETMs) has led to proposals for broader use of ETMs in environmental and resource management policy. The successful ETMs all share a basic feature-they exchange units of trade that are fungible, such as tons of sulfur dioxide or kilos of fish. This feature of trading promotes resource allocation efficiency while advancing environmental protection. But most commodities exchanged in current and proposed ETMs, such as wetlands and endangered species habitat, exhibit nonfungibilities across the dimensions of type, time, and space. Using ETMs to trade these commodities is no longer trading "environmental apples for apples," …