peppermint essential oil uses In economic terms, the benefits of holding any two currencies should be equal in the equilibrium of the foreign exchange market, which is: Ri=Rj (interest rate parity). Here, R stands for yield, and I and j represent currencies of different countries. If the benefits of holding two currencies are unequal, you will have A arbitrage: buy A kind of foreign exchange and sell B foreign exchange. This is one of several economic forecasters who will suffer a downturn if voters leave the eu. According to financial data from its official website, revenue rose from $1177,000 to $40,374,000 in 2015-2017, and after-tax profits rose from $713,000 to $7082,000. Another element of the market-tracking plan is determining the number of foreign exchange futures markets to track and the number of transactions to be traded within a certain period of time.