Only two goods are made in a city: mike and cookies. milk is made using the tchonology Qm=Min(1/2L,K) and cookies is made using the techonology Qc=Min(L,1/2K), each good sells for 10 pennies a unit. There are 30 units of capital and 36 units of labor. Find the level of milk and cookies outputs that are consistent will full employment.
Let the labor and capital be L1 + L2 = 36 and K1 + K2 = 30. We have
Qm = L1/2 or L1 = 2Qm and Qm = K1 or K1 = Qm.
Qc = L2 or L2 = Qc and K2 = 2Qc
Use the labor and capital constraint
L1 + L2 = 36 K1 + K2 = 30
2Qm + Qc = 36 Qm + 2Qc = 30
Solve them (first subtract the two equations)
2Qm - Qm + Qc - 2Qc = 6
Qm - Qc = 6 and similarly (now add the two equations)
2Qm + Qm + Qc + 2Qc = 66
Qm + Qc = 22
Now solve Qm - Qc = 6 and Qm + Qc = 22 to get Qc = 8 and Qm = 14.
The level of milk and cookies outputs that are consistent will full employment are milk = 14 and cookies = 8.
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