Steven Levitt and Stephen Dubner’s best-seller “Freakonomics” is one of my favorite gems. Here’s a great lesson they passed on about the effectiveness of incentives they learned by potty training.
Steven Levitt and Stephen Dubner’s best-seller “Freakonomics” is one of my favorite gems. Here’s a great lesson they passed on about the effectiveness of incentives they learned by potty training.
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