Marxism is a social, political, and economic philosophy named after the 19th-century German philosopher and economist Karl Marx. His work examines the historical effects of capitalism on labor, productivity, and economic development, and argues that a worker revolution is needed to replace capitalism with a communist system.

Marxism posits that the struggle between social classes—specifically between the bourgeoisie, or capitalists, and the proletariat, or workers— defines economic relations in a capitalist economy and will lead inevitably to a communist revolution.