A global study like this is pretty useless considering the massive disparity in the cost of living around the world. A programmer in Tokyo is going to need a much higher salary than his counterpart in China or eastern Europe in order to maintain a similar lifestyle.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.