The next several questions refer to the case of an economy with the following equations: Y = 50K0.3L0.7 with K=100 and L=100 G=1000, T=1000 I = 2000- 1000r C = 200 + 0.5(Y-T) real money demand: (M/P)d = 0.2Y - 1000r nominal money supply: M = 3200 (Assume a closed economy: Y = C + I + G. Assume the economy is in the long run equilibrium.) compute the nomianl wage (W) |
Substituting L = 100 nd K = 100 in production function,
Y = 50 x (100)0.3(100)0.7 = 50 x 100 = 5,000 (Equilibrium output)
Profit is maximized when MPL = (W/P)
MPL = Y/L = 50 x (K/L)0.3 = 50 x (100/100)0.3 = 50 x 1 = 50
W/P = 50
Goods market is in equilibrium when Y = C + I + G
Y = 200 + 0.5(Y - 1000) + 2000 - 1000r + 1000 [Substituting Y = 5000 as derived above]
5000 = 3200 + 0.5 x (5000 - 1000) - 1000r
5000 = 3200 + 2500 - 500 - 1000r
5000 = 5200 - 1000r
1000r = 200
r = 0.2
In money market equilibrium, Rea money demanded equals Real money supplied (M/P). When M = 3200,
3200 / P = (0.2 x 5000) - (1000 x 0.2)
3200 / P = 1000 - 200
3200 / P = 800
P = 4
Therefore,
W = P x (W/P) = 4 x 50 = 200
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