A central issue in environmental law is the choice among regulatory instruments. From Pigou to Coase to the present, scholars have debated the relative merits of liability rules, property rules, technology standards, taxes, subsidies, and tradeable allowances. An emerging scholarly consensus in...

Stunned by the terrorist attacks of September 11, 2001, the Bush administration adopted a new National Security Strategy in September 2002. The UK government took a similar stance. This new strategy calls for anticipatory attacks against potential enemies with uncertain capacities and...

Decisions on investing in health as well as other policies require deciding how to best allocate available resources - recognizing that using labor, materials, and other resources for one purpose means that they cannot be used for other purposes. Approaches for economic evaluation, including...