Materialist feminism highlights capitalism and patriarchy as a central aspect in understanding women's oppression. It focuses on the material, or physical, aspects that define oppression. Under materialist feminism, gender is seen as a social construct, and society forces gender roles, such as rearing children, onto women. Materialist feminism's ideal vision is a society in which women are treated socially and economically the same as men. The theory centers on social change rather than seeking transformation within the capitalist system. Jennifer Wicke defines materialist feminism as "a feminism that insists on examining the material conditions under which social arrangements, including those of gender hierarchy, develop... materialist feminism avoids seeing this gender hierarchy as the effect of a singular... patriarchy and instead gauges the web of social and psychic relations that make up a material, historical moment". She states that "...materialist feminism argues that material conditions of all sorts play a vital role in the social production of gender and assays the different ways in which women collaborate and participate in these productions". Material feminism also considers how women and men of various races and ethnicities are kept in their lower economic status due to an imbalance of power that privileges those who already have privilege, thereby protecting the status quo. Materialist feminists ask whether people have access to free education, if they can pursue careers, have access or opportunity to become wealthy, and if not, what economic or social constraints are preventing them from doing so, and how this can be changed. The term materialist feminism emerged in the late 1970s and is associated with key thinkers, such as Rosemary Hennessy, Stevi Jackson and Christine Delphy. Rosemary Hennessy traces the history of materialist feminism in the work of British and French feminists who preferred the term materialist feminism to Marxist feminism. In their view, Marxism had to be altered to be able to explain the sexual division of labor.