"I was a little surprised to find out that Roth has a wide streak of provocation in his personality. It comes across in his new book, Moral Economics: From Prostitution to Organ Sales, What Controversial Transactions Reveal about How Markets Work, published in May. In a mild, just-asking-questions tone, Roth digs into one prohibited or controversial activity after another: buying sex, eating horses, selling organs, assisting suicide, carrying a stranger’s baby. He asks why many of these activities are prohibited or restricted even though some people clearly want them. And he thinks about whether it’s possible to design markets for them in a way that preserves people’s freedom to transact while protecting those who don’t want to.
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"Roth entertains so many ideas that others strenuously resist that I asked if he calls himself a libertarian. No, he said. “People who call themselves libertarians often don’t like market regulation of any sort,” he said. “But I’m a market designer. I think that good regulations help markets work well.” Cigarettes and alcohol, for example. They can be sold, but not to children. That’s a reasonable balance.
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"If you want to design markets that enable beneficial exchanges while protecting the vulnerable, you may have to persuade people that a market in some repugnant good or service is tolerable. Roth seems to have taken on that task in Moral Economics. He never told me what to think. He just asked me what I think, and to think about what I think. It’s an economist’s kind of mischief—relentlessly, cheerfully inquisitive about the rules we’ve decided to live by but have never quite explained to ourselves.
Kidney transactions don’t seem so repugnant to me anymore. Would I sell a kidney to a stranger? Um, maybe, some day. Would I buy a kidney from a stranger if I really needed one? Hell, yeah."
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