Question: When Paul Samuelson switched from physics to economics Robert Solow
When Paul Samuelson switched from physics to economics, Robert Solow is said to have remarked that the average IQ in both disciplines went up. A by-stander responded that Solow’s claim must be wrong because it implies that the average IQ for academia as a whole (which is a weighted average of the average IQ levels for each discipline) must also have gone up as a result of the switch, which is clearly impossible. Was the bystander right? Explain.
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