1. Megan Non-McArdle explains what is a "separating equilibrium." First sentence:
There are bad reasons why the girl doesn’t ask out the boy.
2. Tim Harford argues that stock price crashes can be rational. Market trading reveals information by showing traders the slope of the demand curve.
3. Jason Kottke points us to the Coca-Cola index, which correlates the consumption of this beverage with freedom and prosperity.