A tax where wealthy people pay a larger percentage of their income than poor people is known as a(n):

When the marginal benefit equals the marginal cost of the last unit sold in a competitive market

A) producer surplus is equal to consumer surplus. B) the net benefit of consumers is equal to the net benefit of producers. C) an economically efficient level of output is produced. D) total benefit is equal to total cost.

The $/€ bid rate is the:

a. Inverse of €/$ ask rate b. Inverse of €/$ bid rate c. Inverse of $/€ ask rate d. Equal to the €/$ ask rate e. Equal to the €/$ bid rate