Economists may not know much. But we know one thing very well: how to produce surpluses and shortages. Do you want a surplus? Have the government legislate a minimum price that is above the price that would otherwise prevail. That is what we have done at one time or another to produce surpluses of wheat, of sugar, of butter, of many other commodities. Do you want a shortage? Have the government legislate a maximum price that is below the price that would otherwise prevail.
Milton Friedman...theories should be judged by their ability to predict events rather than by the realism of their assumptions.
Milton FriedmanThe problem is that, in a world of floating exchange rates, as Italy was before the euro, if one country is subjected to a shock which requires it to cut wages, it cannot do so with a modern kind of control and regulation system. It is much easier to do it by letting the exchange rate change. Only one price has to change, instead of many.
Milton Friedman