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3. If the production function is given by y=k:13 where yt where yt is the output per worker and kt is the capital per worker.

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Answer #1

Given, production function, yt = kt(1/3), s = \delta + 0.4

The steady state of capital k* is defined at which capital stock, k is constant, so \bigtriangleup k = 0

\bigtriangleupk = sf(k) - \delta k

0 = sf(k) - \delta k

sf(k) = \delta k

s / \delta = k* / f(k*)

(\delta + 0.4) /  \delta = k* / k*(1/3)

Therefore, k* (2/3) = (\delta + 0.4) /  \delta

k* = ((\delta + 0.4) /  \delta )(3/2)

c* = f(k*) - \delta k* = k*(1/3) - \delta k* = ((\delta + 0.4) /  \delta )(1/2) - \delta ((\delta + 0.4) /  \delta )(3/2)

output, yt= f(k*) = ((\delta + 0.4) /  \delta )(1/2)

I* = \delta k* / f(k*) = (\delta + 0.4)

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