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CAMBRIDGE – I was recently invited by two Harvard colleagues to make a guest appearance in their course on globalization. “I have to tell you,” one of them warned me beforehand, “this is a pretty pro-globalization crowd.” In the very first meeting, he had asked the students how many of them preferred free trade to import restrictions; the response was more than 90%. And this was before the students had been instructed in the wonders of comparative advantage!
We know that when the same question is asked in real surveys with representative samples – not just Harvard students – the outcome is quite different. In the United States, respondents favor trade restrictions by a two-to-one margin. But the Harvard students’ response was not entirely surprising. Highly skilled and better-educated respondents tend to be considerably more pro-free trade than blue-collar workers are. Perhaps the Harvard students were simply voting with their own (future) wallets in mind.
Or maybe they did not understand how trade really works. After all, when I met with them, I posed the same question in a different guise, emphasizing the likely distributional effects of trade. This time, the free-trade consensus evaporated – even more rapidly than I had anticipated.
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