supermarket managers have all kinds of tricks to encourage prople to spend money. their aim is to slow people down as they move through the supermarket. to do this they place colorful displays in surprising places to catch the customer's attention.they also make the aisles (walkways) near the cash regiaters narrower, so customers will not be able to move quickly with their shopping carts. sometimes the floor is even slightly uphill for people moving towaed the cash registers. the idea behind these tricks is simple: if you make customers go slowly, they will