Marxian sociologist Erik Olin Wright sees the underclass as a "category of social agents who are economically oppressed but not consistently exploited within a given class system". The underclass occupies the lowest possible rung on a class ladder. According to Wright, the underclass are oppressed. He believes this is because they are generally denied access to the labor market, and thus they cannot rise above their status easily but also thus are "not consistently exploited" because the opportunity for their economic exploitation is minimal for the classes above.