New York City Stock Exchange (by LeoTar, via Wikimedia Commons) In mainstream economics free markets are considered the linchpin of a free and prosperous economic and political system. As t he CATO Institute , a think tank "dedicated to the principles of individual liberty, limited government, free markets and peace", explains in his website: "To survive and to flourish, individuals need to engage in economic activity. The right to property entails the right to exchange property by mutual agreement. Free markets are the economic system of free individuals, and they are necessary to create wealth. Libertarians believe that people will be both freer and more prosperous if government intervention in people’s economic choices is minimized." However, the concept of "free market" is nothing but a construct created by ideologues more interested in abstract theories than in practical analysis. Indeed, what are "free markets"? As ec...