a. What must the saving rate be in the initial steady state? [Hint: Use the steady-state relationship, sy = (6 + n+ g)k.] b. What is the marginal product of capital in the initial steady state? c. Suppose that public policy alters the saving rate so that the economy reaches the Golden Rule level of capital. What will the marginal product of capital be at the Golden Rule steady state? Compare the marginal product at the Golden Rule steady state to the marginal product in the initial steady state. Explain.

ENGR.ECONOMIC ANALYSIS
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ISBN:9780190931919
Author:NEWNAN
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Chapter1: Making Economics Decisions
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In Ghana, the capital share of GDP is about 40 percent, the average growth in output is about
2 percent per year, the depreciation rate is about 3 percent per year, and the capital-output ratio
is about 1.5. Suppose that the production function is Cobb-Douglas and that Ghana has been
in a steady state.
a. What must the saving rate be in the initial steady state? [Hint: Use the steady-state
relationship, sy = (6 + n+ g)k]
b. What is the marginal product of capital in the initial steady state?
c. Suppose that public policy alters the saving rate so that the economy reaches the Golden
Rule level of capital. What will the marginal product of capital be at the Golden Rule steady
state? Compare the marginal product at the Golden Rule steady state to the marginal product
in the initial steady state. Explain.
Transcribed Image Text:In Ghana, the capital share of GDP is about 40 percent, the average growth in output is about 2 percent per year, the depreciation rate is about 3 percent per year, and the capital-output ratio is about 1.5. Suppose that the production function is Cobb-Douglas and that Ghana has been in a steady state. a. What must the saving rate be in the initial steady state? [Hint: Use the steady-state relationship, sy = (6 + n+ g)k] b. What is the marginal product of capital in the initial steady state? c. Suppose that public policy alters the saving rate so that the economy reaches the Golden Rule level of capital. What will the marginal product of capital be at the Golden Rule steady state? Compare the marginal product at the Golden Rule steady state to the marginal product in the initial steady state. Explain.
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