Following the basic hypothesis of the a new approach in the analysis of the economic development, the principal reason for the actual gap in the per capita income between developed and developing countries (former European colonies) is the original wealth concentration. In this paper we tested a hypothesis which we call “historicist”. According to this one there is a negative influence of the original wealth concentration on the posterior economic performance. We supposed an aggregate production function and (hypothetic) relations between the basic determinants of the economic growth and the income concentration in original and later moments of time. The results of panel exercises with a sample of developed and developing countries do not reject the historicist hypothesis when the income concentration is measure as the participation in the income of the richest decile of the population
