Marxian economics
Marxian economics is a school of economic thought tracing its foundations to the critique of classical political economy first expounded upon by Karl Marx and Friedrich Engels. Marxian economics concerns itself with the analysis of crisis in capitalism, the role and distribution of the surplus product and surplus value in various types of economic systems, the nature and origin of economic value, the impact of class and class struggle on economic and political processes, and the process of economic evolution. Although the Marxian school is considered heterodox, ideas that have come out of Marxian economics have contributed to mainstream understanding of the global economy. Certain concepts of Marxian economics, especially those related to capital accumulation and the business cycle such as creative destruction have been fitted for use in capitalist systems.