This book, crammed with characteristically Baumolian insights, encompasses three main parts: one explaining how oligopolists' virtuous rent seeking has been the engine propelling long-term economic growth in free-market economies; one showing how the tools of microeconomics can be applied to analyze technological innovation; and one proposing a macroeconomic endogenous growth model with richer innovation-dependent features than those found in the models pioneered by Paul Romer (Journal of Political Economy, October 1990) and others.