Marxism is an economic and sociopolitical worldview and method of socioeconomic inquiry based upon a materialist interpretation of historical development, a dialectical view of social change, and an analysis of class-relations within society and their application in the analysis and critique of the development of capitalism. Marxist analyses and methodologies have influenced multiple political ideologies and social movements throughout history.

Marxism encompasses an economic theory, a sociological theory, a philosophical method and a revolutionary view of social change. There is no one definitive Marxist theory; Marxist analysis has been applied to a variety of different subjects and has been modified during the course of its development, resulting in multiple and sometimes contradictory theories that fall under the rubric of Marxism or Marxian analysis.

In sociology, Marxism explains social change and movements. Developed by Karl Marx in the mid-1800s, Marxism holds that in a capitalist society the owners of the means of production oppress those who work in them. For example, the people who own large corporations exploit corporate employees, who perform unrewarding work for little pay. Resulting class conflict leads to social change in the form of revolution, as the workers overthrow the ruling class. In general, social change arises from class conflict. Marx thought classes would disappear in a communist society.

The Occupy Movement has been defined as the heightening of class consciousness, similar to what Marx wrote about and advocated for. Here is a short movie produced that exemplifies such a representation.