Economists like to say there's no such thing as a free lunch – this was even the title of a 1975 book by Milton Friedman. But sometimes, thereis a free lunch, in a vitally important sense.
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Economists like to say there's no such thing as a free lunch – this was even the title of a 1975 book by Milton Friedman. But sometimes, thereis a free lunch, in a vitally important sense.