Conflict theory views society as characterized by inequality and power struggles among groups that compete for scarce resources. It was developed as an alternative to functionalism by Marx, Weber, Simmel and later theorists. Marx saw society as divided into two main classes, the bourgeoisie and the proletariat, who struggle over economic resources. Weber and Simmel expanded on this to argue that power can also be gained through social prestige and political influence. Modern conflict theorists like Coser, Dahrendorf, and Mills applied these ideas to analyze power structures and social change in the post-World War II era.