Abstract
In this paper we will analyze Piaget’s studies on the development of morality focusing on the notion of justice, since this notion is constituted as the regulating dimension of social exchanges. Piaget’s hypothesis is the following: the fundamental source of the evolution of morality is found in children’s actions and interactions involving relations of solidarity and equality, as opposed to explanations that postulate its origin in authority and in relations of competition or competition. Our study will take into account the early theoretical works as well as their later empirical research on moral development in children. We will highlight the importance and originality of the indicated hypothesis in his theory of morality and in his body of work as a whole.
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