Question

When can a PPC be a straight line?

Answer 1

In the context of a PPF, opportunity cost is directly related to the shape of the curve (see below). If the shape of the PPF curve is a straight-line, the opportunity cost is constant as production of different goods is changing. But, opportunity cost usuallywill vary depending on the start and end points.

Answer 2

Answer:

Explanation:

When marginal opportunity cost is constant