Distribution of collected abstracts in the Annals of Tourism Research (ATR), Journal of Travel Research (JTR), and Tourism Management (TM) over time (article/annum).

Note that the reduced number of article in 2009 is not a data collection artifact: compare Tourism Management volume 28 (2007, 1592 pages), volume 30 (2009, 936 pages) and 32 (2011, 1496 pages). The solid line represents the total number of journal papers in Scopus database with and without the abstracts.