Granovetter: weak network ties promote the spreading of information while strong network ties enhance influence (35-36).
DiMaggio and Lough: buyers prefer to purchase items from within their social network, but sellers prefer selling to people outside their social network (37).
Gans: neighborhoods with strong redundant social ties (urban villagers) are less able to block unfavorable urban policies (37-38).
Zborowski and Herzog: traditional urban Jewish families stressed the virtues of education and scholarship (48-50). (Culture theory)
Covello: traditional Italian families from southern Italy stressed family loyalty and responsibility over academic learning (50-51). (Culture theory)
Steinberg: among first-generation immigrants, a group’s status in a new society is influenced by their status in their former society (52-55). (Social theory)
Perlmann: social position and cultural values impact ethnic mobility (55-57). (Combine social and culture theories)
Glazer: (same basic idea as Perlmann’s, above) (57) (Social and culture theories)
Greeley: Persistence of Italian family loyalty and solidarity in North America (61-62). (Culture theory)