The Optimal Currency Area Involves a Trade-Off of Reducing Transaction

Multiple Choice

The optimal currency area involves a trade-off of reducing transaction costs but the inability to use changes in exchange rates to help ailing regions.If the US,Canada,and Mexico had one single currency (the Peso-Dollar) we would tend to see all of the following EXCEPT:

A) Even more intraregional trade of goods across the three countries.
B) Lower transaction costs of trading within North America.
C) A greater difficulty in helping Mexico as you can no longer deflate the Mexican peso.
D) Less migration of workers across the three countries.
E) An elimination of correlated macroeconomic shocks across the countries.