“Okay, here's the first question. What percentage of the…” — Freakonomics Radio at 4:13
“Okay, here's the first question. What percentage of the world's population are immigrants, that is, people who live in countries they weren't born in? I'll say 33%. You said 33%, right? Yes, sir. So the right answer is 3.6%. Dang, oh my God.”
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