
Lenny D. answered 01/15/20
Global Macroeconomic Expert
The Present value of the dividend stream is ∑1∞(1/(1+5%)D = D/.05 = 200 Billion
Replacement Value = 150. q=(200/150) = 4/3
So 150 in machines generates 200 in dividend.
Marginal replacement cost = d(I(Q)/dq = I/100 Invest up to the point where I/100 = 4/3 or I= 133billion.
Hope this helps
Please feel free to reach out for help.
Lenny