When markets work, finding the right economic policy is easy. Government must merely ensure their smooth functioning. But, as Steven M. Sheffrin shows, trouble starts when markets fail to work. Economic failure is too often compounded by political failure in the guise of clumsy partisan regulations. Applying his analysis to seven critical problems - health care, Social Security and Medicare, the environment, the liability crisis, international trade, monetary and international financial policy, and the deficit - Sheffrin pinpoints the market failures at the root of these problems and the heavy-handed regulatory regimes that have exacerbated them, and shows how innovative solutions, sensitive to both market and political failures, can solve them.