You walked into ZARA to look around. You didn't plan to buy anything. Twenty minutes later you're at the cash register with a jacket you didn't need, a scarf you weren't looking for, and a vague feeling that you got a good deal. What happened? It wasn't weakness. It wasn't bad luck. It was psychology and it was working on you long before you picked up that jacket. The Invisible Hand in Every Store Every time you shop, online or in person, you are being steered. Not pushed, no