McqMate
| Q. |
Economies of scale |
| A. | set in as soon as diminishing marginal physical productivity is experienced |
| B. | are usually considered to be a phenomenon of the long run |
| C. | are not always available in the short run |
| D. | help ensure that industries will be competitive rather than monopolized |
| Answer» B. are usually considered to be a phenomenon of the long run | |
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