The difference between median and mean is a hobby horse of mine. It is not self-evident that half the population is below average in any given statistic. Bill Gates walks into a bar and all that... And this is a case of what you don't know being able to hurt you - and hurt you badly - because it means that people can pass off means where they should be using medians. Such as when describing incomes across different countries...

- Jake

If you only spend 20 minutes of the rest of your life on economics, go spend them here.