A recent study showed what office workers around the world already knew — the promise of pizza is good for productivity.

The discovery was made by psychologist Dan Ariely and explained in further detail in his book Payoff: The Hidden Logic That Shapes Our Motivations. Pizza proves to be the biggest motivator — more than even cash or compliments.

Ariel’s experiment used four separate groups of employees at an Intel semiconductor factory in Israel. Workers were to receive rewards for their increased productivity. One group was offered a bonus payment of about $30. Another group was offered pizza. A third group would receive a compliment from their boss, and the fourth group was offered nothing.

Ariel found that cash and compliments didn’t do as much to motivate the workers as the pizza — initially.

The Cut reported that after the first day, the pizza group increased productivity by 6.7 percent over the group receiving nothing (the control group). This group just slightly edged out the compliments group who grew its productivity by 6.6 percent. Surprisingly, cash was the worst motivator with only a 4.9 percent increase over the control group.

Over the course of the weeklong study, the lure of the pizza wore off, and compliments became the biggest motivator. In his book, Ariely explains he thinks pizza would have continued to be the winner if he had been able to offer home delivery. “This way … we not only would give them a gift, but we would also make them heroes in the eyes of their families,” he wrote.

So there you have it bosses. Skip the bonuses and pay us in pizza and compliments.

(h/t The Daily Meal)

Also see, Pick pizza over cereal for a healthier breakfast.

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Meghan is a full-time writer exploring the fun facts behind food. She lives a healthy lifestyle but lives for breakfast, dessert and anything with marinara. She’s thrown away just as many meals as she’s proud of.