EXPATRIATES AND CREATIVITY

I read a very interesting article in the Economist (www.economist.com) which by the way is one of the best journals there are.
According to a recent study, students who are either living abroad or had spent some time doing so are more creative and have better negotiating skills.
Apparently, there is a strong correlation between people living abroad and creativity., indicating that that, I quote, "it is something from the experience of living in foreign parts that helps foster creativity".
Expats in Portugal: what do you think?