I think there is universal agreement within the economics profession that the decline - the sharp decline in the quantity of money played a very major role in producing the Great Depression.
Milton FriedmanHistory suggests that capitalism is a necessary condition for political freedom. Clearly it is not a sufficient condition.
Milton FriedmanWhat's the difference? How can people be so inconsistent? Why is it that free immigration was a good thing before 1914 and free immigration is a bad thing today? Well, there is a sense in which that answer is right. There's a sense in which free immigration, in the same sense as we had it before 1914 is not possible today. Why not?
Milton FriedmanI believe the role that people like myself have played in the transformation of public opinion has been by persistently presenting a different point of view, a point of view which stresses the importance of private markets, of individual freedom, and the distorting effect of governmental policy.
Milton Friedman. . I think the Adam Smith role was played in this cycle i.e. the late twentieth century collapse of socialism in which the idea of free-markets succeeded first, and then special events catalyzed a complete change of socio-political policy in countries around the world by Friedrich Hayek's The Road to Serfdom.
Milton Friedman