Teachers and parents have been using promises of pizza as a method to get students and kids to work harder for decades.

Now, a recent study claims that pizza is a bigger motivator than cash and can even make people more productive at work when used as a stimulus, according to a story on The Daily Meal. This isn't that surprising when we think of the aforementioned kids and even staff members who are told they'll be getting a pizza party at the end of the week. 

The "discovery," however, was made by psychologist Dan Ariely and detailed in his book Payoff: The Hidden Logic That Shapes Our Motivations.

According to the story, Ariely’s experiment offered four separate groups of employees at an Intel semiconductor factory in Israel rewards for increased productivity. One group was offered a bonus of about $30, another pizza, another a compliment from their boss, and the last group was offered nothing. Ariely found that pizza, as opposed to cash and compliments, was the biggest initial motivator, increasing productivity by 6.7% on the first day.

Another win for pizza!