This book is... devoted to the study of economic policies to enhance the quality of life. Our willingness to embark on so considerable a subject only… - William Baumol

We cannot simply rely on a program of pollution abatement in country A [the polluting country] for this would impose costs on A with no offsetting benefits to the polluting country. The OECD’s Polluter-Pays-Principle is thus inconsistent with our insistence on a Pareto improvement. Mutual gains to the countries necessarily require the victim country B to make some payments to A.

The basic hypothesis is that, while the total supply of entrepreneurs varies among societies, the productive contribution of the society's entrepreneurial activities varies much more because of their allocation between productive activities such as innovation and largely unproductive activities such as rent seeking or organized crime. This allocation is heavily influenced by the relative payoffs society offers to such activities. This implies that policy can influence the allocation of entrepreneurship more effectively than it can influence its supply. Historical evidence from ancient Rome, early China, and the Middle Ages and Renaissance in Europe is used to investigate the hypotheses.

There seems to be a general consensus among informed observers that genuine cases of predation are very rare birds.