The euro is good for Europe. But only if there is flexibility all around.

A private enterprise system needs some measuring rod, it needs something, it needs money to make its transactions. You can't run a big complicated system through barter, through converting one commodity into another. You need a monetary system to operate. And the instability in that monetary system is devastating to the performance of the economy.

What most people really object to when they object to a free market is that it is so hard for them to shape it to their own will. The market gives people what the people want instead of what other people think they ought to want. At the bottom of many criticisms of the market economy is really lack of belief in freedom itself.

You will find that hardly a soul who will say that it was a bad thing. Almost everybody will say it was a good thing. 'But what about today? Do you think we should have free immigration?' 'Oh, no,' they'll say, 'We couldn't possibly have free immigration today. Why, that would flood us with immigrants from India, and God knows where. We'd be driven down to a bare subsistence level.'

The evidence of history speaks with a single voice. I do not know any exception to the proposition that if you compare like with like, the freer the system, the better off the ordinary poor people have been.

Now here's somebody who wants to smoke a marijuana cigarette. If he's caught, he goes to jail. Now is that moral? Is that proper? I think it's absolutely disgraceful that our government, supposed to be our government, should be in the position of converting people who are not harming others into criminals, of destroying their lives, putting them in jail. That's the issue to me. The economic issue comes in only for explaining why it has those effects. But the economic reasons are not the reasons.

The lesson for Asia is; if you have a central bank, have a floating exchange rate; if you want to have a fixed exchange rate, abolish your central bank and adopt a currency board instead. Either extreme; a fixed exchange rate through a currency board, but no central bank, or a central bank plus truly floating exchange rates; either of those is a tenable arrangement. But a pegged exchange rate with a central bank is a recipe for trouble.