We show that the invariant method (Pinski and Narin, 1976), recently axiomatised by Palacios-Huerta and Volij (2004), and used to quality-rank academic journals is subject to manipulation: a journal can boost its performance by making additional citations to other journals.

To take development and budgeting decisions for research activi- ties the officials in charge need to constantly evaluate and assess the quality of research. Over the years a handful of scoring methods for academic journals have been proposed. Discussing the most prominent methods (de facto...

A ranking of journals is manipulable if a particular journal's position can be improved by making additional citations to other journals. We introduce a simple ranking method that is not not manipulable and is invariant to citation intensities, journal scaling and article-splitting. The ranking...

The quality of publications, approximated by the containing journal's quality indicator, is often the basis for hire and promotion in academic and research positions. Over the years a handful of ranking methods have been proposed. Discussing the most prominent methods we show that they are...