You just purchased an existing business that produces solar panels according to the following production function: Q=K.5L.5
The business currently has 25 units of capital, which cost $1, and no workers. Your first order of business is to hire workers and begin production. Workers can be hired for $1 each.
The market price for the panels that you produce just fell to $100. How much profit, if any, will you make if you produce solar panels given the existing capacity (short run)?
Q = K0.5L0.5
When K = 25,
Q = (25)0.5L0.5 = 5L0.5
Profit is maximized when VMPL = w, where VMPL = MPL x Output price = (dQ/dL) x $100.
MPL = dQ/dL = 5 x 0.5 / L0.5 = 2.5 / L0.5
Therefore,
(2.5 / L0.5) x $100 = $1
250 / L0.5 = 1
L0.5 = 250
Squaring,
L = 62,500
Q = 5 x 250 = 1,250
Revenue (R) = Output price x Q = $100 x 1,250 = $125,000
Total cost (C) = wL + rK = $1 x 62,500 + $1 x 25 = $62,500 + $25 = $62,525
Profit = R - C = $(125,000 - 62,525) = $62,475
You just purchased an existing business that produces solar panels according to the following production function:...
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