The debate on inequality has been recently revived by Thomas Piketty’s Capital in the 21st century. The first point of the article concerns the sources: Piketty uses in an exclusionary way the documentation provided by the tax records without any comparison with other quantitative series (household surveys) and other categories (disposable income after tax, levels of consumption) commonly analyzed in the scientific literature. Even though a recent rise of income inequality is documented in US and Great Britain, the current trends in the rest of the Western countries are less linear and constant. The second point relates to the limits of a Eurocentric approach, which ignores how economic development in Asian countries (e.g. China, above all) is currently increasing the income and the wealth not only of the richer élite but also of an emerging middle-class. The third point focuses on the active role played by international finance in the building of new, albeit volatile, fortunes, putting into question the centrality of inheritance stressed by Piketty. The crucial and still unsolved problem is to exert a global regulation of the phenomenon.
Keywords: Distribuzione del reddito, Ricchezza, Ineguaglianza, Finanza, élite economiche, Storia economica, Capitalismo, Rivoluzione industriale, Italia