Need for an analysis of market structure in backward countries, 519. — Sources utilized, 520. — Types of markets: personal services, 521; perishable produce, 523; agricultural staples, 525; manufactured consumers' goods, 530; capital goods, 534. — Interrelationship between these types, 537. — Analytical tools: market control, 538; market imperfections, 538; interrelations, 538. — Influence of market structure on economic development, 539. — Influence of industrialization on net monopoly element, 539.