This document discusses several economic ideologies and theorists that emerged in the 19th century, including:
- Capitalism and classical economists like Adam Smith and David Ricardo
- Malthus' theory of population growth outstripping food supply
- Utopian socialists like Robert Owen, Charles Fourier, and Saint-Simon
- Anarchism as proposed by thinkers like Proudhon, Bakunin, and Blanqui
- Marxism as defined by Karl Marx and Friedrich Engels in The Communist Manifesto, with Marx further developing his theories in Das Kapital. Many of these new economic and political philosophies aimed to critique and reform capitalism or propose alternative systems.