The Gruen effect happens when intentionally confusing store layouts make shoppers lose track of their original purpose, leading to more impulse buys.

Where You’ve Seen It:

• Malls – Winding paths encourage wandering and unplanned purchases.

• IKEA – A one-way maze ensures you see more products.

• Supermarkets – Essentials like milk are at the back, forcing you past tempting items.

• Casinos – No clocks, no windows, and a maze-like design keep you inside longer.

• Theme Parks – Immersive layouts encourage spending on food and souvenirs.

Named after Victor Gruen, the designer of the first enclosed malls, this strategy keeps you shopping longer—without even realizing it.