Commodity currency Canadian dollar, New Zealand dollar, Norwegian krone, South African rand, Brazilian real, Russian ruble and the Chilean peso. Due to the nature of commodity currencies being tied to commodities, being tied to any one good can be beneficial as well as problematic for the country. While naturally, falling or rising exports will lead to deflation or inflation respectively in any country the impacts are more severe in countries with commodity currencies at their currency is so heavily tied to a set few commodities. According to a 2009 study on commodity currency titled “Can Exchange Rates Forecast Commodity Prices?” by Yu-chin
South African rand the end of 2004 was trading under R 5.70 to the dollar. The currency softened somewhat in 2005, and was trading around R 6.35 to the dollar at the end of the year. At the start of 2006, however, the currency resumed its rally, and as of 19 January 2006, was trading under R 6 to the dollar again. However, during the second and third quarters of 2006 (i.e. April through September), the Rand weakened significantly. In sterling terms, it fell from around 9.5p to just over 7p, losing some 25% of its international trade-weighted value in just six months.