Monday, February 9, 2009

A cool natural experiment idea

Andrew Gelman has a great natural experiment and he's throwing it out for someone to pick up. This is one of those rare $100 bills lying on the floor that aren't supposed to exist.

So, how long do you think before someone has a draft paper on this idea?

The link is also useful for understanding a key difference between so-called "structural" and "reduced-form" empirical economists.

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