Measures three dimensions of in-store decision making: tendency to make unplanned purchases, reliance on in-store information sources (shelf labels, displays), and responsiveness to in-store promotions. Central to shopper marketing and retail merchandising research on how consumers deviate from pre-planned shopping lists.
Inman, J.J., Winer, R.S., & Ferraro, R. (2009). The interplay among category characteristics, customer characteristics, and customer activities on in-store decision making. Journal of Marketing, 73(5), 19–29.
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