I am interested in white-collar vs blue-collar class distinctions and the stereotypes and discrimination that go along with these. Is there any evidence of stereotype accuracy about these social classes? Do people discriminate based on social classes in a way that accords with accurate stereotypes (e.g. statistical discrimination) or is the evidence more in line with unwarranted "taste based" discrimination? How does interaction between social classes affect cooperation? Suggestions of any good research articles based on data would be appreciated.