A variable input is an input that can change
A)in the short run but not in the long run.
B)in the long run but not in the short run.
C)in both the long run and the short run.
D)without changing the level of output.

Question

Quizplus · Accepted Answer

A variable input, by definition, is an input that can be changed or varied. This holds true regardless of the time period under consideration. Therefore, the input can change in both the long and short run. Option D is incorrect because a change in a variable input can affect the level of output.

A Variable Input Is an Input That Can Change