Greater wealth is associated with greater individualism at all levels, whether we compare nations by GDP, or blue-collar and upper-middle-class Americans by annual income. Higher population density is associated with collectivism, as living in close proximity to others requires more restrictions on behavior in order to keep the peace. On the other hand, greater exposure to other cultures and higher levels of education are both associated with individualism, so cities aren’t necessarily more collectivist than rural areas. People become slightly more collectivist with age as they develop more
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