The document discusses in-store decision-making research (ISDR) and how it relates to brand choice. It provides data from a national survey of people ages 18-54 on their last shopping trip across 40 fast-moving consumer goods categories. The data shows that on average, 73% of purchases were planned before entering the store, while 27% were not planned. Of the unplanned purchases, 44% resulted from brands seen in the store, while 9% were from brands not previously considered.