When two ice cream vendors locate next to each other on the beach, they are exhibiting a Nash equilibrium

Which of the following is an example of a regional currency arrangement?

A) exchange rate union B) currency cartel associations C) free-trade zones D) most-favored nation status E) agreement on commercial trade

Which of the following is a service?

a. anything that is scarce and that satisfies unlimited human wants b. a thing for which people pay money c. an intangible activity that satisfies human wants d. any output produced by a service-sector industry, such as fast food e. something less desirable than a good