Answer:
The inefficiency is represented by any point that lies inside the curve.
Explanation:
In the case of the production possibility curve, the inefficiency is represented by any point that lies inside the curve. While the point on the curve shows the efficient combination or use and the point beyond or outside the curve exhibits that combination that cannot be achieved. Moreover, the point inside the PPF curve shows that the government or economy is not suing its resources efficiently and the efficient use of an economy can reach the optimal combination of production.