A study produced by a University of Toronto (U of T) professor found that people who make hourly wages and are constantly reminded of what their time is worth are more likely to be happier.

“Happiness is a very sort of vague thing…a major proportion of this is pretty fixed, but on the margins you can be pushed around a little bit,” said Sanford DeVoe, a professor at U of T’s Rotman School of Management. The study found that the more people are exposed to the information about what their time is worth, the more their happiness becomes chronic, persisting for two years.

Even salaried workers can receive the same “money-happiness effect” if they figure out the numbers as to how much they make for every hour they work.

—Sarah Chung