Sets forth in a straightforward and sensible way the philosophical reasons for the non-economist's skepticism of the economist's view of the world. Its relevance extends beyond environmental issues to other areas where microeconomic theory is being applied to public policy.

Kelman cites results to confirm his view that both opponents and supporters of economic incentives have important philosophical concerns. He takes the role of an advocate of the use of incentives in formulating an environmental policy. He also discusses political strategy from the point of view of the policy entrepreneur who is trying to get ideas adopted. Economists and non-economists alike will welcome this book as a bridge over a perceptual gap in an important area of policymaking.