"I love power. But it is as an artist that I love it. I love it as a musician loves his violin, to draw out its sounds and chords and harmonies." --Napoleon Bonaparte
Power has been called many things. The ultimate aphrodisiac. An absolute corrupter. A mistress. A violin. But its true nature remains elusive. After all, a head of state wields a very different sort of power than a religious figure. Can one really compare the influence of a journalist to that of a terrorist? And is power unexercised power at all?
In compiling our first ranking of the World's Most Powerful People we wrestled with these questions--and many more--before deciding to define power in four dimensions. First, we asked, does the person have influence over lots of other people? Pope Benedict XVI, ranked 11th on our list, is the spiritual leader of more than a billion souls, or about one-sixth of the world's population, while Wal-Mart ( WMT - news - people ) CEO Mike Duke (No. 8) is the largest private-sector employer in the United States.
Then we assessed the financial resources controlled by these individuals. Are they relatively large compared with their peers? For heads of state we used GDP, while for CEOs, we looked at a composite ranking of market capitalization, profits, assets and revenues as reflected on our annual ranking of the World's 2000 Largest Companies. In certain instances, like New York Times Executive Editor Bill Keller (No. 51), we judged the resources at his disposal compared with others in the industry. For billionaires, like Bill Gates (No. 10), net worth was also a factor.
Next we determined if they are powerful in multiple spheres. There are only 67 slots on our list--one for every 100 million people on the planet--so being powerful in just one area is not enough to guarantee a spot. Our picks project their influence in myriad ways. Take Italy's colorful prime minister, Silvio Berlusconi (No. 12) who is a politician, a media monopolist and owner of soccer powerhouse A.C. Milan, or Oprah Winfrey (No. 45) who can manufacture a best-seller and an American President. More...
Click here for the complete List of 67 heads of state, criminals, financiers and philanthropists who really run the world.