Question: 1.Consider a Cobb-Douglas production function: Y = zK a (N d ) 1-a a.Show that this production function exhibits constant returns to scale (That is,

1.Consider a Cobb-Douglas production function:

Y = zK^a(N^d)^1-a

a.Show that this production function exhibits constant returns to scale (That is, show that when K becomes xK and N^d becomes xN^d, Y becomes xY for x > 0).

b.What is MP_N? Is it increasing or decreasing in N^d?

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