Consider an economy described by the Solow model with the following production function: Y = F(K, L) = K“ (L)!-« L grows at the rate n, the depreciation rate is d, and the country saves a constant fraction s of its income. The change in capital per-worker is given by Ak = sy – (n + 8)k. (a) Derive the per-worker production function. (b) Assuming population growth equals n and the depreciation rate equals 8, find the steady state level of capital per worker. It will depend on a, s, n and 8. Imagine the economy begins at the steady state you found in part b. Then there is a war that destroys a substantial amount of the economy's capital. The war does not affect the size of the labor force, population growth, the depreciation rate, or the saving rate. c) What is the immediate effect of the war on output per worker? Explain.

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Chapter1: Making Economics Decisions
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Consider an economy described by the Solow model with the following production
function:
Y = F(K, L) = K“ (L)'-«
L grows at the rate n, the depreciation rate is 8, and the country saves a constant fraction s
of its income. The change in capital per-worker is given by Ak = sy – (n+ 8)k.
(a) Derive the per-worker production function.
(b) Assuming population growth equals n and the depreciation rate equals 8, find the
steady state level of capital per worker. It will depend on a, s, n and 8.
Imagine the economy begins at the steady state you found in part b. Then there is a war
that destroys a substantial amount of the economy's capital. The war does not affect the
size of the labor force, population growth, the depreciation rate, or the saving rate.
c) What is the immediate effect of the war on output per worker? Explain.
d) After the war, is the growth rate of output per worker higher or lower than it was in
steady state? Explain.
e) How does the war affect steady state output per worker? Explain.
Transcribed Image Text:Consider an economy described by the Solow model with the following production function: Y = F(K, L) = K“ (L)'-« L grows at the rate n, the depreciation rate is 8, and the country saves a constant fraction s of its income. The change in capital per-worker is given by Ak = sy – (n+ 8)k. (a) Derive the per-worker production function. (b) Assuming population growth equals n and the depreciation rate equals 8, find the steady state level of capital per worker. It will depend on a, s, n and 8. Imagine the economy begins at the steady state you found in part b. Then there is a war that destroys a substantial amount of the economy's capital. The war does not affect the size of the labor force, population growth, the depreciation rate, or the saving rate. c) What is the immediate effect of the war on output per worker? Explain. d) After the war, is the growth rate of output per worker higher or lower than it was in steady state? Explain. e) How does the war affect steady state output per worker? Explain.
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