1. Economies of scale are of two kinds:

2. Negative returns in the short run imply that:

3. The maximum point on TP curve is at quantity of labour where:

4. When a firm using a fixed amount of land and capital takes on more workers, it finds that marginal product (MP) of labour falls but the average product (AP) of labour rises. This can be explained by the factors that:

5. Which of the following is example of external economies of scale ?

6. In law of diminishing returns at least one factor:

7. During short period, diminishing returns may follow because:

8. When a firm using a fixed amount of land and capital takes on more workers, it finds that marginal product (MP) of labour falls but the average product (AP) of labour rises. This can be explained by the factors that:

9. Economies of scale:

10. Laws of return apply to firms working in: