Part of a series of instructional packages for use in college level economics courses, the document contains nine microeconomics chapters. Chapter I, "Economic Concepts, Issues, and Tools," discusses scarcity and choice; preferences, resources, exchange, and economic efficiency; marginal analysis and opportunity cost; and different economic systems. Chapters II and III focus on the concept, influences, assumptions and implications of demand and supply, respectively. Individual and market demand, firm supply in the short run and firm and industry supply in the long run are also discussed. Chapter IV presents the market in terms of concept and operation, changes in market equilibrium, and intervention and dynamic adjustments. Chapter V considers marginal equivalency conditions and economic efficiency. Resource allocation, profit maximizing behavior, and the principles of Adam Smith are presented. Chapter VI describes the organization of industries in terms of perfect and imperfect competition, monopolies and economics of scale, and regulation. Chapter VII discusses public goods and externalities in relation to private goods, collective action, and economic efficiency. Chapter VIII, "Income Distribution," deals with marginal productivity, economic rents, trade unions, and economic equity. The final chapter discusses international trade: gains from exchange, the theory of comparative advantage, tariffs and quotas, and exchange rates. Economic principles are supported by concrete examples, charts, and tables. For accompanying tests, answer sheets, and study approaches, see SO 011 934. (KC)