When should government intervene in market activity and when is it best to let market forces take their natural course? How does the existing empirical evidence about government performance guide our answers to these questions? In this clear, concise book, Clifford Winston offers his innovative analysisshaped by thirty years of evidenceto assess the efficacy of government interventions. Markets fail when it is possible to make one person better off without making someone else worse off, thus indicating inefficiency. Governments fail when an intervention is unwarranted because markets are...