Which of the following expresses the equation of exchange?

Shocks and Integration) The graph shows hypothetical OCA economic criteria for several South American countries. Using the graph, which of the following best satisfy the OCA criteria for forming a monetary union?

A) Peru and Colombia B) Peru and Uruguay C) Venezuela and Uruguay D) Colombia and Venezuela

Rational choice

A) is a choice that uses the available resources to best achieve the objective of the person making the choice. B) is always efficient. C) is what you must give up to get what you want. D) is made by comparing different incentives. E) provides the answer to only the "how" question.