The Who Runs Your World? season of programming seeks to explore who has power, who wants it and how it's used.
But just how much do you really know about who decides?
Test your knowledge and discover some interesting - and perhaps surprising - facts about who is really in charge.
When you've got your result, why not e-mail the quiz to your friends to see how they measure up?
The season runs from 16 September - 3 October 2005 across all 43 language services of BBC World Service, BBC World Television and bbcnews.com