Are workaholics born or made? Toward a deeper understanding of the addictive nature of workaholism. Greta Mazzetti, Università di Bologna (Italy), email: greta.mazzetti3@unibo.it The current research project aims to provide further empirical support to the conceptualization of workaholism as a true kind of addiction. To this purpose, the following objectives are envisioned: 1) to investigate the role played by dispositional factors (a key antecedent of addiction theory) in the development of workaholism; 2) to investigate the occurrence of denial (a key tenet of addiction theory) among workaholic employees; 3) to investigate the impairment of interpersonal relationships (a key outcome of addiction theory) as a consequence of workaholism. More particularly, three different studies are planned: the first study is aimed to validate a self-report measure of overwork culture; the second study is aimed to investigate the moderating role of overwork culture in the relationship between dispositional factors (personality traits) and workaholism; and the third research is meant to triangulate workers’, partners’ and colleagues’ perceptions concerning the level of workaholism exhibited by the focal person and its consequences on interpersonal relationships.