The large differences in interest rates led to the
emergence of the carry
trade, an
interest rate arbitrage strategy that takes advantage of the interest rate differentials between two major economies, while aiming to
benefit from the general direction or
trend of the
currency pair. This trade involves buying one currency and
funding it with another, and the most commonly used currencies to
fund carry trades are the Japanese yen and the Swiss franc because of their countries' exceptionally
low interest rates. The popularity of the
carry trade is one of the main reasons for the
strength seen in pairs such as the Australian
dollar and the Japanese yen (AUD/JPY), the Australian dollar and the
U.S. dollar (AUD/USD), the New Zealand dollar and the U.S. dollar (NZD/USD), and the U.S. dollar and the Canadian dollar (USD/CAD).