Have you ever wondered how large the gap in living standards is between countries? Or how this has changed over time?
An excellent resource to allow you to look at the evidence in a visually engaging and user friendly way is http://www.gapminder.org/
For example, to explore how the Wealth and Health of Nations has changed over time click on the picture below to open Gapminder’s interactive display.
Gapminder also has a series of brief and informative YouTube clips, such as the following video that shows how 200 countries have developed over the last 200 years in just 4 minutes.