I had a chance to read this study by Kai L. Chan, PhD on the plane yesterday and found it interesting. No time to expand on it as I am traveling, but wanted to pass it along to anyone that is interested.
It goes into more detail than usual, focusing on not only race, gender and nationality but also religion, occupation, age and education.
http://www.kailchan.ca/wp-content/up...he-country.pdf