While the development of the European Union (hereinafter "EU") has its roots in economic goals, the scope of the European Union has been expanded to encompass many areas ranging from the economy to social policy. In furtherance of social policy goals, the founding treaty of the European Union included the principle of equality, which includes equality between men and women in employment. This general principle has been furthered by passage of a number of directives, including the Equal Pay for Equal Work Directive and the Equal Treatment Directive.
Janet L. Luxton, Equality and Sex Discrimination In the European Union-Is Shifting the Burden of Proof the Answer?, 17 Penn St. Int'l L. Rev. 357 (1999).