Economic theory and social classes

The marginalist economic theory believes that the effectiveness of the collective action exerted by a social class as a whole conflicts with the hypothesis of competition (perfect competition). A question of method is at the root of this view: the marginalist theory only takes into consideration the individual maximizing behaviour of workers, capitalists and entrepreneurs. In this way it excludes from the analysis the study of social links, which, as a matter of fact, are the conditions for collective action. In the classical approach, economic relations are instead affected by the institutions and social conventions that characterize each particular historical moment. As a consequence, the classical notion of competition (free competition) does not exclude a role for the social links that can justify collective action and, at the same time, make it effective. This characteristic of the classical approach is particularly considerable as concerns the theory of income distribution. A re-proposal of the classical theory of wages which takes into consideration the development and complexity of the institutions that, these days, condition the conflict for the distribution of income, cannot actually disregard the role of the collective action.