Two main stratas in society: men have more authority and exercise their power over women. Liberal feminists: Gender inequalities are due to unfair laws and gender role socialisation rather than biological differences. Radical feminists: Society is run by men for the advantage of men and women are disadvantaged at every aspect because of it. Marxist feminists: Women are cheap and exploitable for employers, women reproduce the labour force, women absorb the frustrations of their husband. Black feminism: Developed because other types of feminism did not acknowledge other factors such as race and ethnicity, mainstream feminism reflected the views of white middle-class women, developed the concept of intersectionality