These efforts curtailed the ability of black people to buy better housing, to move to better neighborhoods, and to build wealth. Also, by confining black people to the same neighborhoods, these efforts ensured that people who were discriminated against, and hence had little, tended to be neighbors only with others who also had little. Thus while an individual in that community might be high-achieving, even high-earning, his or her ability to increase that achievement and wealth and social capital, through friendship, marriage, or neighborhood organizations, would always be limited.