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1. Introduction
The phenomenon of the fourth industrial revolution raises the increasing consumer desire accompanied by increased purchasing power. This has an impact on habits and lifestyles, which also change in a relatively short period of time toward becoming increasingly luxurious and excessive (Ekapaksi, 2016). The phenomenon of online shopping is very easy, encouraging students to behave compulsively, where the behavior is no longer to meet the needs, but based on mere desire, even they tend not to be able to control the desire to shop (Lejoyeux and Weinstein, 2010). Such changes in consumption behavior are certainly in contrary to conventional economic theory. According to Deshpande (2011), the basis of conventional economic theory is rational consumer demand, where the consumer demand is analyzed in quantitative rather than qualitative terms, thereby ignoring subjective factors such as personality, attitude, social class, preferences, cognition, social environment and culture (Deshpande, 2015). However, in its development, several critical lawsuits over the theory began to be massive. Mas-Colell et al. (1995) and Binder (2010) argued that consumer preferences are assumed to be fixed, and only focus on maximizing the utility function is not significantly proven so that the relevance of the assumption of rationality cannot be absolutely justified (Bernheim and Rangel, 2009). Therefore, behavioral economics appears that bases a psychological perspective on understanding consumption. In this context, humans are predicted as organic machines, so it makes no difference controlling people's behavior than controlling machines, through behavioral techniques that condition emotional responses or stimuli (DiClemente and Hantula, 2000, 2003). So that consumer decisions are often irrational and influenced by feelings and sentiments, motives, attitudes, subjective biases and heuristics in information processing, as well as social influences from family or peer groups (Traut-Mattausch et al., 2008).
The irrational buying decisions have been studied by several experts. One of them is compulsive buying. This behavior has characteristics such as spontaneous decisions, symbolic meaning, social visibility, a large amount of money used and the limited knowledge possessed (Kirchler et al., 2001; Kirchler and Hoelzl, 2011). Compulsive buying is a psychoeconomic phenomenon that often afflicts people's lives where this behavior takes the form of repeated purchases as a result of unpleasant events or negative feelings caused by addictions, stress or boredom (Faber and O'Guinn,...