Quote:
Hamermesh, who has studied discrimination at all levels, says that bias is instilled in infancy — much like enduring personality traits such as shyness or high self-esteem — as an essential part of human behavior. "We all have these subconscious preferences for our own group," he says.
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It would have been nice if the article revealed how a professor of economics is qualified to speak as an expert in the fields of (at least) biology, genetics, psychology, early childhood behavioral sciences, development and neurology.
I guess since they didn't we can safely assume he knows as much about these areas as the OP does.