Smart Shopping Carts: How Real-Time Feedback Influences Spending

K. van Ittersum, B. Wansink, J.M.E. Pennings, D. Sheehan

Research output: Contribution to journalArticleAcademicpeer-review

34 Citations (Scopus)


Although interest in smart shopping carts is increasing, both retailers and consumer groups have concerns about how real-time spending feedback will influence shopping behavior. Building on budgeting and spending theories, the authors conduct three lab and grocery store experiments that robustly show that real-time spending feedback has a diverging impact on spending depending on whether a person is budget constrained (“budget” shoppers) or not (“nonbudget” shoppers). Real-time spending feedback stimulates budget shoppers to spend more (by buying more national brands). In contrast, this feedback leads nonbudget shoppers to spend less (by replacing national brands with store brands). Furthermore, smart shopping carts increase repatronage intentions for budget shoppers while keeping them stable for nonbudget shoppers. These findings underscore fundamental unexplored differences between budget and nonbudget shoppers. Moreover, they have key implications for both brick-and-mortar and online retailers as well as app developers. Keywords: real-time spending feedback, grocery shopping behavior, smart shopping carts, budget shoppers, nonbudget shoppers
Original languageEnglish
Pages (from-to)21-36
JournalJournal of Marketing
Issue number6
Publication statusPublished - 2013


  • consumer choice
  • private labels
  • loss aversion
  • store brands
  • price
  • behavior
  • consumption
  • shoppers
  • budget
  • model

Fingerprint Dive into the research topics of 'Smart Shopping Carts: How Real-Time Feedback Influences Spending'. Together they form a unique fingerprint.

Cite this