Which of the Following Is an Estimable Form of a Production

Multiple Choice

Which of the following is an estimable form of a production function?

A) Q = f(L,K)
B) Q = f(L $\bar { K }$ )
C) $Q = a K ^ { 3 } L ^ { 3 } + b K ^ { 2 } L ^ { 2 }$
D) all of the above
E) none of the above