profiles on Google Scholar. This chart shows the Google Scholar citations organized by academic rank. Level B is lecturer (equivalent to assistant prof in the US), Level C is senior lecturer (about equal to associate prof in the US), and D and E are associate professor and professor (both are probably equivalent to professor in the US). Though there are overlaps, it is possible to distinguish ranks quite clearly. If we controlled for discipline, the pattern would get even clearer. Economists have more citations than political scientists and perhaps environmental studies people have even more - Bob Costanza, of course, is the highest point on the chart.