Emissions trading has emerged as the major policy approach for addressing climate change, as evidenced by programs and proposals in the Australia, Europe, the United States, and elsewhere. A host of choices need to be made to design and implement a greenhouse gas emissions trading program,...

Design for behavior change aims to influence user behavior, through design, for social or environmental benefit. Understanding and modelling human behavior has thus come within the scope of designers’ work, as in interaction design, service design and user experience design more generally....

As economists, we believe that the Second Circuit's ruling, by not allowing the consideration of important information about the relationships between the benefits and costs of alternatives, is economically unsound. In particular, we believe that, as a general principle, regulators cannot make...