Feminism is a collection of movements and ideologies which share a common stated aim: to define, establish, and defend equal political, economic, cultural, and social rights for women. This includes seeking to establish equal opportunities for women in education and employment. A feminist generally self-defines as advocating for or supporting the rights and equality of women. Feminist theory, which emerged from feminist movements, aims to understand the nature of gender inequality by examining women's social roles and lived experience; it has developed theories in a variety of disciplines in order to respond to issues such as the social construction of sex and gender. Some forms of feminism have been criticized for taking into account only white, middle-class, educated perspectives. This led to the creation of ethnically specific or multiculturalist forms of feminism. Feminist activists campaign for women's rights – such as in contract law, property, and voting – while also promoting bodily integrity, autonomy, and reproductive rights for women.