The Maastricht Treaty laid out the convergence criteria for the Exchange Rate Mechanism.

If the cross-elasticity of demand for two goods is positive, this means that the goods are:

a. normal goods. b. inferior goods. c. substitutes. d. complements.

In the United States, before OPEC increased the price of crude oil in 1973, there was

a. no price ceiling on gasoline. b. a nonbinding price ceiling on gasoline. c. a binding price ceiling on gasoline. d. a nonbinding price floor on gasoline.