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This paper shows how the homo oeconomicus has evolved from utility at work to consumption and then to the mystification of profit in a context of financialization and long-term crisis. Thus, a semantic slippage occurs, which distorts the achievements of capitalism, such as individualism and self-interest, for a libertarian belief -alien to liberalism, to Bentham's utilitarianism and marginalism- in which it is not possible to define social utility, nor the connection between the "rationality" of individual decisions and social choices. Usefulness is confused with profit in the primacy of today's business mentality and is often reflected in individual behavior. [ABSTRACT FROM AUTHOR]

With the implementation of the North American Free Trade Agreement (NAFTA), Mexico experienced a rapid expansion in highly industrialized food and beverage products. This has transformed supply and distribution structures and led to changes in dietary patterns. The objective of this paper is to explain how these transformations led to the configuration of a hybrid distribution and consumption scheme that affected the expenditure, frequency and quantities of ultra-processed and fast foods consumed in Mexican households during the period 2000-2020. This hybrid model is associated with an increase in diseases such as obesity and chronic degenerative diseases. [ABSTRACT FROM AUTHOR]