About ________________ of all Americans volunteer each year in the non-profit sector

Assume that there is an excess supply of euros in the foreign exchange market. If a fixed exchange rate system exists with the United States, the European Central Bank would have to __________ to prevent the euro from __________

A) buy excess euros; appreciating B) buy excess euros; depreciating C) sell euros; appreciating D) sell euros; depreciating

If you observe a market where quantity demanded doesn't equal quantity supplied, a logical conclusion is that:

A. the fallacy of composition is not operative in the market. B. social and political forces are likely to exist. C. the law of demand and supply do not hold in the market. D. the invisible hand is the only force at work in the market.