Introduction to the special issue on ''relations between gambling and alcohol use''.

It has long been recognized that gambling is an activity that is often combined with alcohol intake. Not only do the behaviors of drinking and gambling frequently co-occur, alcohol use disorders and pathological gambling are also commonly co-morbid conditions in both clinical and non-clinical samples. This article introduces a special issue of the Journal of Gambling Studies focusing on cutting edge findings on the relations between gambling and alcohol use behaviors and their associated disorders. We set the stage for the following series of six novel empirical papers and integrative commentary by reviewing the theoretical pathways through which alcohol use and gambling disorders may be linked. We conclude by describing some of the novel contributions of each of the empirical studies from within the context of these theoretical models.