Are there any other factors that could explain these findings, and did you look at these factors?

VOA: standard.2010.08.05

Economist Mikhail Delyagin, director of Moscow's Problems of Globalization Institute, says bad working conditions, bureaucracy, and a lack of modernization are other factors driving away talent.

VOA: standard.2010.02.03

The art form reached its height during the Renaissance, when micro-mosaics were created for St.Peter's Basilica in Vatican City because traditional altar paintings were decaying from humidity and other environmental factors.

VOA: standard.2010.07.30

Brennan said the Obama administration will also focus on factors that contribute to terrorism, such as poverty, and a lack of education and other opportunities for young people in many developing areas of the world.

VOA: standard.2009.08.06