... Ad creativity dimensions and dual persuasion processes Creativity is indispensable to an ad campaign's success, and previous literature has identified three key dimensions of ad creativity: ad novelty (Ahmad & Mahmood, 2010;Ang, Leong, Lee, & Lou, 2014;Ang & Low, 2000;Heiser, Sierra, & Torres, 2008;Lehnert, Till, & Ospina, 2014;Rosenkrans, 2009;Sheinin, Varki, & Ashley, 2011;Smith, Chen, & Yang, 2008;Smith & Yang, 2004;Yang & Smith, 2009), message usefulness (Ahmad & Mahmood, 2010;Ang et al., 2014;Ang & Low, 2000;Lehnert et al., 2014;Sheinin et al., 2011;Smith et al., 2008), and ad-consumer association (Ang et al., 2014;Ang & Low, 2000;Smith et al., 2008;Smith & Yang, 2004;Yang & Smith, 2009). To date, only a few studies have examined all the three dimensions (e.g., Ang, Lee, & Leong, 2007;Ang et al., 2014). ...