Professor Vernon L. Smith is a major creator of the new descipline of experimental economics. This collection of his papers from 1962 to 1990 surveys key developments in the field from early attempts to study economic behaviour in now classic double oral auction markets through recent studies of industrial organization and decision making. Topics covered include monopoly and oligopoly, supply and demand theory under posted pricing, uniform pricing, double continuous auction, and sealed bid-offer auctions; hypothetical valuation and market pricing; asset price bubbles; predatory pricing; market contestability and natural monopoly; and the methodology of experimental economics. Taken together, the papers form a history of the study of economics under controlled conditions.