The curve that indicates how many workers a firm will hire at different wages is the factor's

If a nation can produce a good or service at the lowest opportunity cost, then it

A) might export or import the good, depending on whether or not it has a comparative advantage in the production of the good. B) can sell the product at a lower price than other nations. C) will definitely import the good because it can beat other countries' prices. D) does not want to export the good because the low cost means it makes only a low profit. E) is best for the nation to not trade the good internationally.

The "ability-to-pay" principle of taxation is the normative idea that

A) an equitable tax system is one in which high income individuals should bear a greater burden of taxes than low income individuals. B) two individuals earning the same income should have equal ability to pay, all else constant. C) each individual should voluntarily contribute according to her ability to pay taxes. D) progressive taxes are more equitable than regressive taxes.