Economists widely agree that the Consumer Price Index (CPI) understates the true U.S. inflation rate

If a seller can sell 5 units at $8 each and can sell a 6th unit separately for $7 (the people willing to pay $8 don't learn about the reduced price), the marginal revenue from selling the 6th unit is

A) $47. B) $7.50. C) $7. D) $2. E) none of the above.

When the price of the same product varies by locational attributes, it is an example of:

A) predatory pricing. B) first-degree price discrimination. C) second-degree price discrimination. D) third-degree price discrimination.