Editing Consumer behaviour (section)

==== Random factor ====
Random factors refer to special occasions and a series of random conditions consumers have when purchasing. Sometimes, consumer purchase decisions are made in unexpected circumstances, or a situation will delay or shorten people's decision-making process. Research has found that in waiting for scenarios where consumers are ubiquitous, seemingly unrelated physical cues, such as area carpets or queue guidelines, can act as virtual boundaries that alter consumers' initial decisions.<ref>{{cite book |last1=Reisch |first1=Lucia A. |last2=Zhao |first2=Min |title=Behavioural economics, consumer behaviour and consumer policy: state of the art |date=November 2017 |publisher=Cambridge University Press |page=199 |language=en}}</ref>