behavioral scientists who record the eye movements of shoppers as they move through the store. They know, for instance, that we pause at some displays for 5.8 seconds, others for just 3.3 seconds. That we take as few as 21 seconds to buy a particular item, on average. That we’ll spend $1.88 per minute on a short shopping trip, but only $1.23 per minute if the shopping lasts 25 minutes or more.
