The hypothesis that the results of a longrun HeckscherOhlin model with labor immigration will result in an increase in production for the labor intensive industry while reducing production in the capitalintensive industry is known as the _____ theorem.

In the above figure, the long-run average cost curve exhibits economies of scale

A) between 5 and 10 units per hour. B) between 10 and 20 units per hour. C) between 20 and 25 units per hour. D) along the entire curve.

Suppose the production function for a certain device is q = L + K. If a labor-saving technical change has occurred, which of the following could be the new production function?

A) q = L + 5K B) q = 5 ? (L + K) C) q = 5L + K D) All of the above are possible.