If the poverty threshold is set at 60 percent of median income, and if median income were $20,000 . then people in poverty earn less than

Use the law of diminishing marginal utility to explain why Domino's and Pizza Hut allow the purchase of a second pizza for only $4 when one pays full price (around $10) for the first pizza. Why not simply charge $7 a pizza instead?

The Clayton Act

A. made tying contracts illegal and banned price discrimination. B. called for the establishment of the Federal Trade Commission. C. banned the use of barriers to entry to prevent monopolization. D. declared monopoly and trade restraints illegal.