Because it is one thing to have free immigration to jobs. It is another thing to have free immigration to welfare. And you cannot have both. If you have a welfare state, if you have a state in which every resident is promises a certain minimal level of income, or a minimum level of subsistence, regardless of whether he works or not, produces it or not. Then it really is an impossible thing.

There is no figure who had more of an influence, no person had more of an influence on the intellectuals behind the Iron Curtain than Friedrich Hayek. His books were translated and published by the underground and black market editions, read widely, and undoubtedly influenced the climate of opinion that ultimately brought about the collapse of the Soviet Union.

The Great Depression in the United States was caused - I won't say caused, was enormously intensified and made far worse than it would have been by bad monetary policy.

The world runs on individuals pursuing their self interests. The great achievements of civilization have not come from government bureaus. Einstein didn't construct his theory under order from a bureaucrat. Henry Ford didn't revolutionize the automobile industry that way.

Italy may well be the main problem. It has benefited most from the euro by having been able to get the euro interest rate instead of what otherwise would have been its own. That would be much higher because Italy has been accumulating so much debt. In the past, Italy has inflated away its debt. The virtue of the euro is that Italy can't do it alone. A tight ECB policy wouldn't permit that to happen again.

I know of no example in time or place of a society that has been marked by a large measure of political freedom, and that has not also used something comparable to a free market to organize the bulk of economic activity.

The central banks cannot control interest rates. That's a mistake. They can control a particular rate, such as the Federal Funds rate, if they want to, but they can't control interest rates.