Social enterprise research conducted on behalf of the Columbia Business
School (2005–2007) showed that regional differences within the United
States in how interracial relationships are perceived have persisted: Daters
of both sexes from south of the Mason-Dixon Line were found to have much
stronger same-race preferences than northern daters did. The study also
observed a clear gender divide in racial preference with regards to marriage
men of their own race for marriage, with the caveat that Ea
