The aim of this note is to complement some of the results appearing in Dolado et al. (2003) article "Publishing Performance in Economics: Spanish Rankings". We want to focus on three issues: the robustness of the results regardless of the time span considered, the evaluation of the contribution of a researcher to the advance of knowledge, and to what extent the choice of a particular database can affect the results. Differences are significant when we expand the time period considered. There are also small but significant differences if we combine datasets to derive the rankings.Keywords: rankings, economics, bibliometric indicators JEL Classification: A10, A14Unlike its American counterpart, the European literature on measuring the economists' performance is relatively recent and traces back from the beginning of the nineties.Probably one of the main reasons of this recent concern on research performance has been the common trend in European countries towards increasing academic competition, which is needed of some measures of academic evaluation. This literature has focused on analyzing the productivity of scientists and/or departments based on a series of bibliometric indicators (such as the publications or their impact on the academic community) in a given period of time, generally no longer than ten years. Several indicators have been used as proxies of productivity but up to now there is no universally accepted measure 1 .Among the flow of recent studies, the contri bution of Dolado et. al (2003) attracted the attention of the Spanish academic profession since (a) it focuses specifically on the