The plantation economy and society model incorporates insights from the "race-based" approaches to provide consistent explanations about why racial structures emerge in some societies and not others, as well as explanation for the nature of racial structures. The use of racialization to control the labor supply and labor force means that racial separation and subordination tends to remain a characteristic of plantation economies even after emancipation of the slaves. The legal and extra-legal forms of social control that composed the plantation structures of control were the basis for the development of racial structures. The theories of racial formation and racialized social systems draw on previous "race-based" approaches in the conceptualization of racial structure and racial ideology. In fact, fundamentally similar ways of viewing racial structure and racial ideology are present in the literature on institutional racism, internal colonialism, and critical race theory.