Combining philosophy with practical politics, an expanding area of policy studies applies moral precepts, critical principles, and conventional values to collective decisions. This evolving new approach to policy analysis asserts that the same variety of ethical principles available to the individual are also available to make collective decisions in the public interest and should be used.

Although policy analysis has long been dominated by assumptions originally developed for the examination of markets, such as efficiency, these essays by leading scholars - the best work done in the...