it had changed the global discussion on how economic historians study inequality. It has also sparked new conversations in the disciplines of public policy. In addition to the mainstream in economic history, there is a parallel development in the field influenced by Karl Marx and Marxian economics. Marx used historical analysis to interpret the role of class and class as a central issue in history. He debated with the "classical" economists (a term he coined), including Adam Smith and David Ricardo. In turn, Marx's legacy in economic history has been to critique the findings of neoclassical economists. Marxist analysis also confronts economic determinism, the theory that economic relationships are the foundation of political and societal institutions. Marx abstracted the idea of a "capitalist mode of production" as a way of identifying the transition from feudalism to capitalism. This has influenced some scholars, such as Maurice Dobb, to argue that feudalism declined because of peasants' struggles for freedom and the growing inefficiency of feudalism as a system of production. In turn, in what was later coined the Brenner debate, Paul Sweezy, a Marxian economist, challenged Dobb's definition of feudalism and its focus only on western Europe.History of capitalism A new field, called "history of capitalism" by researchers engaged in it, has emerged in US history departments since about the year 2000. It includes many topics traditionally associated with the field of economic history, such as insurance, banking and regulation, the political dimension of business, and the impact of capitalism on the middle classes, the poor and women and minorities. The field has particularly focused on the contribution of slavery to the rise of the US economy in the nineteenth century. The field utilizes the existing research of business history, but has sought to make it more relevant to the concerns of history departments in the United States, including by having limited or no discussion of individual business enterprises.Lou Galambos, "Is This a Decisive Moment for the History of Business, Economic History, and the History Of Capitalism? Essays in Economic & Business History (2014) v. 32 pp. 1–18 online Historians of capitalism have countered these critiques, citing the issues with economic history. As University of Chicago professor of history Jonathan Levy states, "modern economic history began with industrialization and urbanization, and, even then, environmental considerations were subsidiary, if not nonexistent." Scholars have critiqued the history of capitalism because it does not focus