Naively, one would expect longer papers to have larger impact (i.e., to be cited more). I tested this expectation by selecting all (∼ 30, 000) refereed papers from A&A, AJ, ApJ and MNRAS published between 2000 and 2004. These particular years were chosen so papers analyzed would not be too “fresh”, but at the same time length of each article could be obtained via ADS. I find that indeed longer ...