Consider the following production function: Y = K0.5(AN)0.5, where both the population and the pool of labor are growing at a rate n= .07, the capital stock is depreciating at a rate d= .03, and A is normalized to 1 (A=1). [N=L]
a. What are capital’s and labor’s shares of income?
b. What is the form of this production function?
c. Find the steady-state values of k and y when s =.20.
d. At what rate is per capita output growing at the steady state?
At what rate is total output growing? What if total factor
productivity is increasing at a rate of 2 percent per year ( g=
.02)?
a. capital’s shares of income = 0.5 (given by the index of capital)
and labor’s shares of income = 0.5 (given by the index of labor)
b. the form of this production function = Cobb- Douglas
c. d. at the steady state, per capita output is growing at the rate of n = 0.07
and, at the steady state, total output is growing at the rate of n + d = 0.07 + 0.03 = 0.10
Now, total factor productivity is increasing at a rate of 2 percent per year ( g= .02), then the new steady state equilibrium and growth rates are as follows:
Now, at the steady state, per capita output is growing at the rate of n + g = 0.07 + 0.02 = 0.09
and, at the steady state, total output is growing at the rate of n + g+ d = 0.07 + 0.02 + 0.03 = 0.12,
Thanks!
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