貨幣銀行學 - 經濟

if there are five
goods in a barter economy, one needs to know ten
prices in order to exchange one good for another. If, however, there
are ten goods in barter economy, then one needs to know____prices in
order to exchange on good for another.

ANS: 45

這個怎麼算??


Between 1950 and 1980 in the US., interest rates trended upward.
During this same time period,
A. the rate of money growth declined
B. the rate of money growth increased
C. the government budget deficit trended downward
D. the aggregate price level declined dramatically

這題答案給B
但貨幣增加的話，利率不是會跟著下跌嗎??



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