Who observed that "in this world nothing is certain but death and taxes"?

How is real seignorage revenue related to inflation? How does the quantity of real seignorage revenue change as inflation rises from zero to a positive level, to still higher levels?

What will be an ideal response?

In order to be a successful price discriminator, a provider must have a degree of market power (depicted by a downward-sloping demand curve) and meet what other condition(s)?

a. Prospective customers must be categorized according to willingness-to-pay. b. Opportunities for resale of the good or service must be limited. c. Customers cannot know that multiple prices are being charged. d. The provider must have excess capacity to accommodate the extra business. e. Both a and b.