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Microeconomics Corso E John Hey Chapter 26 • • • • • The LABOUR MARKET The supply of labour. The demand for labour. Equilibrium. Minimum wage legislation? Two questions for you • An increase in the wage rate implies an increase in the supply of labour? • Minimum wage legislation is a Good Thing? The supply of labour • • • • • • • • We use the analysis of Chapter 6 The space: (T,C) T: free (non-working) time C: consumption The supply of labour – Lo where Lo =24 – T ...depends upon the preferences. Obviously both consumption and leisure time are desirable (are both goods). • Let us go to Maple… The demand for labour • We use the analysis of Chapters 11, 12 and 13. • We begin in a space with... • ... Ld the demand for labour on the horizontal axis... • ... and total Costs total and total revenues on the vertical axis. • Let us assume we are in a short period with fixed costs equal to 5, and the wage fixed at 1 per unit. The optimality condition for the demand for labour • The slope of the total cost curve must be equal to the slope of the total revenue curve. • The slope of the total cost curve is equal to the wage rate. • The slope of the total revenue curve is equal to the price of output multiplied by the marginal product of labour. • Hence the optimality condition: the real wage rate (the wage rate divided by the price of output) must be equal to the marginal product of labour. A minimum wage? • What happens in this market if the government introduces a minimum wage? • Obviously at a level higher than the equilibrium wage in the competitive market. Chapter 26 • Goodbye!