currencies

n.

the metal or paper medium of exchange that is presently used

general acceptance or use

"the currency of ideas"

a current state of general acceptance and use

同义词：vogue

the property of belonging to the present time

"the currency of a slang term"

同义词：currentnessup-to-dateness

Commodity currencies
An Estimate of the Effect of Common Currencies on Trade and Income
One money, one market: the effect of common currencies on trade
Cooperative hunting and group size: assumptions and currencies
A Meta‐Analysis of the Effect of Common Currencies on International Trade
One Money, One Market: Estimating Effects of Common Currencies on Trade
Choosing the greater of two goods: neural currencies for valuation and decision making
One Money, One Market: Estimating the Effect of Common Currencies on Trade
Method and system for performing automated financial transactions involving foreign currencies
Portable financial transaction card capable of authorizing a transaction in foreign currencies