Smart phones, bad calls? The influence of consumer mobile phone use, distraction, and phone dependence on adherence to shopping plans

As mobile phones continue to rapidly expand around the world, marketers are seeking to better understand the impact these devices have on consumer outcomes. One common but understudied area is how mobile phones may influence in-store behaviors. Although prior research has investigated the many shopping related activities consumers undertake on their phones, it is still estimated that nearly half of all in-store mobile phone use is unrelated to the shopping task. Therefore, this paper examines the impact of shopping-unrelated mobile phone use, a frequent but understudied phenomenon, on consumers’ ability to accurately manage in-store shopping plans. Using both field and experimental data, we demonstrate that shopping-unrelated mobile phone use negatively affects consumers’ ability to accurately carry out in-store shopping plans and is associated with an increase in unplanned purchasing. Furthermore, we find that consumers who are highly dependent upon mobile phones tend to be the most at risk of deviating from a shopping plan while engaging in shopping-unrelated mobile phone use.