continue by overtaking Germany, Britain, Australia and Sweden by 2020, surpassing Canada, Switzerland, Netherlands and Norway by 2030 and taking over the United States by 2040 to become the world's wealthiest major economy. While measuring the South Korean economy by nominal GDP is inaccurate as the South Korean won is artificially kept low to boost exports, IMF predicts South Korea's nominal GDP and GDP per capita will surpass Spain in 2015. Economists from other investment firms argue that even when measured by nominal GDP per capita, South Korea will achieve over $145,000 in 2040, surpassing the United States, suggesting that wealth is more important than size for bond investors, stating that Korea's credit rating will be rated AAA sooner than 2050. United Korea In September 2009, Goldman Sachs published its 188th Global Economics Paper named "A United Korea?" which highlighted in detail the potential economic power of a United Korea, which will surpass all current G7 countries except the United States and Japan within 30–40 years of reunification, estimating GDP to surpass $6 trillion by 2050. The young, skilled labor and large amount of natural resources from the North combined with advanced technology, infrastructure and large amount of capital in the South, as well as Korea's strategic location connecting three economic powers, is likely going to create an economy larger than the bulk of the G7. According to some opinions, a reunited Korea could occur before 2050. If it occurred, Korean reunification would immediately raise the country's population to over 70 million. Current leaders See also List of country groupings List of multilateral free-trade agreements Potential superpower Emerging markets Emerging and growth-leading economies North American Union List of countries by GDP (nominal) List of countries by average wage List of countries by future GDP (PPP) estimates Notes References Bibliography Elder, Miriam, and Leahy, Joe, et al., Who's who: Bric leaders take their place at the top table, Financial Times, London, September 25, 2008 Firzli, M. Nicolas, "Forecasting the Future: The BRICs and the China Model", JTW/ USAK Research Center, Mar 9 2011 Kateb, Alexandre, Les nouvelles puissances mondiales. Pourquoi les BRIC changent le monde" (The new global powers. Why the BRIC change the world) (in French), Paris : Ellipses, 2011, 272 p. O'Neill, Jim, BRICs could point the way out of the Economic Mire, Financial Times, London, September 23, 2008, p. 28. Mark Kobayashi-Hillary, 'Building a Future with BRICs: The