Canada is the world's tenth-largest economy , with a nominal GDP of approximately US$1.73 trillion. It is one of the least corrupt countries in the world, and is one of the world's top ten trading nations, with a highly globalized economy. Canada has a mixed economy ranking above the U.S. and most western European nations on The Heritage Foundation's Index of Economic Freedom, and experiencing a relatively low level of income disparity. The country's average household disposable income per capita is "well above" the OECD average. The Toronto Stock Exchange is the ninth-largest stock exchange in the world by market capitalization, listing over 1,500 companies with a combined market capitalization of over US$2 trillion.