Despite the title, I will actually not be talking about London’s Tube this afternoon. Instead, I’d like to make you aware of a nifty little tool for comparing all sorts of economic data from across the world: gapminder.org.
Gapminder lets you compare a wide variety of information gathered from, for the most part, a very long period of time. For example, the default view compares income per capita to life expectancy in 2009, then graphs it out like this (bigger bubbles mean higher population):
