At the? ?macro-economy level,
A.
knowledge capital exhibits increasing returns and physical capital exhibits decreasing returns.
B.
both knowledge capital and physical capital exhibit increasing returns.
C.
physical capital exhibits increasing returns and knowledge capital exhibits decreasing returns.
D.
both knowledge capital and physical capital exhibit decreasing returns.
At the? ?macro-economy level, A. knowledge capital exhibits increasing returns…
At the? ?macro-economy level,