The authors comment a recent paper (Leon-Ledesma and Thirlwall 2000 Ð from now on LLT)in which an interesting issue is raised concerning the notion of the natural rate of growth, first proposed by Sir Roy Harrod (1939).

The authors comment a recent paper (Leon-Ledesma and Thirlwall 2000 Ð from now on LLT)in which an interesting issue is raised concerning the notion of the natural rate of growth, first proposed by Sir Roy Harrod (1939).

We discuss the case when the sum of the growth rate of productivity and that of the labour force is an increasing function f of the actual growth rate of income y. We show that a natural rate of growth is a solution of the equation y =f(y); hence its endogeneity to y requires the unlikely case...

[eng] The explanation of the coordination of actions and decisions of many agents within mar­ket economies has been mainly dealt with by the general equilibrium school of Walrasian derivation. Here a different approach to that problem is suggested. Definitions and procedures for the study of...

A recent paper by Ryzhenkov considers also a paper of mine, where increasing returns to scale are a crucial ingredient. According to Ryzhenkov, my specification of increasing returns is not correct. In this paper I shall show that on the contrary, it is his specification that is not correct...

The aim of this paper is to study the empirical phenomenon of rating bubbles, i.e. clustering on extremely positive values in e-commerce platforms and rating web sites. By means of a field experiment that exogenously manipulates prior ratings for a hotel in an important Italian tourism...