The component of real GDP that seems to play the biggest role in business cycle fluctuations is Group of answer choices Consumption. Investment. Government Purchases. Exports ImportsIf the number of euros required to purchase a U.S. dollar increases then Group of answer choices we say that the U.S. exchange rate with the euro area has increased. we say that the U.S. dollar has appreciated against the euro. other things equal, goods produced in the euro area have become cheaper for U.S. purchasers. All of the above. None of the above (a-c)