As electric restructuring spreads rapidly across countries and states, leading industry experts are increasingly concerned that in many instances policy makers are pushing their proposals into practice more quickly than policy analysts can provide answers to difficult questions of market design. In this process, different structures for organizing this industry are evolving without a firm basic understanding of their implications for long-term market performance. There is a risk that, in the process, we may be inadvertently locked into an inferior market design that will be costly to change. Designing Competitive Electricity Markets develops some guiding principles to be used when evaluating alternative proposals for reorganizing the US electric power industry. Preliminary versions of the papers in this book were presented at a Workshop convened by the Electric Power Research Institute and held at Stanford University in March 1997.