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A firms labour demand and labour supply equations are shown below. Labour demand equation: Ld=50 - 4(W) Labour supply equati

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Answer #1

a) At equilibrium,

Ld = Ls

50 - 4w = -20 + 3w

7w = 70

w = 70 / 7 = $10

L = 50 - 4w = 50 - 4(10) = 10

Thus, the equilibrium wage = $10

The equilibrium quantity of labor employed = 10

b) If wages are raised by 20%, the new wage = 10 * 1.20 = $12

At the wage rate of $12,

Ls = -20 + 3w = -20 + 3(12) = 16

Ld = 50 - 4w = 50 - 4(12) = 2

So, the unemployed after wage increase = 16 - 2 = 14

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