If there were an Economist's Creed, it would surely contain the affirmations 'I understand the Principle of Comparative Advantage' and 'I advocate Fr… - Paul Krugman

If you want a simple model for predicting the unemployment rate in the United States over the next few years, here it is: It will be what Greenspan wants it to be, plus or minus a random error reflecting the fact that he is not quite God.

On the whole, the monetarism for which Friedman first became famous seems clever, brilliantly argued, but shallow ― and perhaps even a bit disingenuous. Friedman's writings from that period have the feel of a smart man who knows what he wants to believe looking hard for supporting arguments. And I think it is fair to say that up until the late 1960s Friedman and his followers, while influential, were regarded by many of their colleagues as faintly disreputable.

Even when political action doesn't backfire, when the movement gets what it wants, the effects are often startlingly malign. For example, could anything be worse than having children work in sweatshops? Alas, yes. In 1993, child workers in Bangladesh were found to be producing clothing for Wal-Mart, and Senator Tom Harkin proposed legislation banning imports from countries employing underage workers. The direct result was that Bangladeshi textile factories stopped employing children. But did the children go back to school? Did they return to happy homes? Not according to Oxfam, which found that the displaced child workers ended up in even worse jobs, or on the streets -- and that a significant number were forced into prostitution.
The point is that third-world countries aren't poor because their export workers earn low wages; it's the other way around. Because the countries are poor, even what look to us like bad jobs at bad wages are almost always much better than the alternatives: millions of Mexicans are migrating to the north of the country to take the low-wage export jobs that outrage opponents of Nafta. And those jobs wouldn't exist if the wages were much higher: the same factors that make poor countries poor -- low productivity, bad infrastructure, general social disorganization -- mean that such countries can compete on world markets only if they pay wages much lower than those paid in the West.