“…This dynamic incentivizes companies to maximize profits by creating and sustaining heavy users of their products. This begins with marketing strategies that encourage initiation and continuation of use through shaping of product-related attitudes, beliefs, and expectations, and the normalizing of use (DiFranza et al, 2006; Landman et al, 2008; Pechmann and Knight, 2002). Adolescents are particularly susceptible and appealing targets for such strategies because earlier age of onset of use is associated with increased risk for later heavy tobacco, alcohol and cannabis use, and for alcohol and cannabis use use disorders (Agrawal et al, 2006; Biener and Siegel, 2000; Chen et al, 2005; David J. DeWit et al, 2000; Evans et al, 1995; Perkonigg et al, 2008; Swift et al, 2008).…”