The course consists of the following parts: (i) theory of consumer behavior, (ii) theory of producer behavior, and (iii) market theory. In part (i) the basic concepts in consumer theory are introduced and used to study the demand for goods and services. In part (ii) we look at the firm's demand for inputs and supply of output, using theories of cost minimisation and profit maximisation. Part (iii) analyses different kinds of markets: perfect competition, monopoly, oligopoly, and game theory.