If the number of people employed rises by 180,000 and the number of people unemployed falls by 200,000 while the adult population stays the same, then the labor force participation rate rises

Which of the following must exist for a firm to engage in price discrimination?

A) The firm must be able to identify and separate its buyers into different classes, and the low-price buyers cannot resell the product to the high-price buyers. B) The firm must face an inelastic demand. C) The firm must be able to realize economies of scale. D) The firm must have no more than one class of buyer. E) The firm must be a natural monopoly.

In perfect competition, the market demand for the good ________ perfectly elastic and the demand for the output of one firm ________ perfectly elastic

A) is; is B) is; is not C) is not; is D) is not; is not