The currency created by the European Monetary Union, for which notes and coins became available in 2002, is the

The study of the choices made by individual households, firms, and government is called

A) managerial economics. B) market economics. C) macroeconomics. D) microeconomics.

Arnie's Airlines is a monopoly airline that is able to price discriminate. If Arnie's decides to price discriminate, then

A) Arnie's profit increases. B) consumer surplus increases. C) Arnie's revenues decrease. D) Arnie's sells fewer tickets. E) Arnie can no longer set a price that depends upon the buyer's willingness to pay.