<title>Abstract</title> The article is dedicated to the work of a group of economists that was an important expression of a fertile season of Italian economics, in the period from the mid-1890s to the end of 1930s, which developed around the figure of Luigi Einaudi, and earlier, around that of his master...

The International Encyclopaedia of Unified Science, 1938-1969 (promoted, above all, by Otto Neurath in Vienna and Charles Morris in the United States) was based on the feasibility of building a "unified science" and it was carried on through the publication of a special "encyclopaedia" to show...

This article deals with the contents of the second edition of Carl Menger’s Principles of Economics (1923), which was neither reprinted in German by Hayek in 1934 nor translated into English by Knight in 1950. My aim is to show that a new Mengerian economic agent can be found in the contents...