If you're economically dependent on your spouse, you're more likely to cheat on them.

Getty Images

A 2015 study of about 2,800 people between ages 18 and 32, published in the American Sociological Review, suggests that a person who is completely economically dependent on their spouse is more likely to be unfaithful.

That's especially true for a man who relies financially on a woman. About 15% of men who are completely financially dependent on their wives cheat, compared to 5% of dependent women.

Here's the really interesting part: Men are less likely to cheat the more money they make relative to their spouse — until they bring in 70% of the household income, at which point they become more likely to cheat.

Women are also less likely to cheat the more money they make relative to their spouse — but their cheating rates don't seem to go up at any point.