Author and economist Michael Munger of Duke University talks with EconTalk host Russ Roberts about the virtues--and the flaws--of free markets. Munger says the best argument for a free market approach is not that it's perfect but that it's better than anything else we've been able to come up with over the centuries. Better at bringing people out of poverty, better at promoting wealth creation, and better at pushing up the standard of living for most of the people, most of the time. Topics include what exactly is a free market, why specialization is so important, the case for case-by-case intervention, and the challenge of picking the prettiest pig.