What makes people more likely to cheat?

What makes us more likely to stray. Photo: Getty Images.

Cheating is a terrifying prospect when you’re in a relationship. And while the majority of people don’t cheat, it can happen. New research from the University of Connecticut found that both men and women are more prone to cheating on their spouses when they're more economically dependent on them.

For the study, researcher Christin Munsch analysed pooled data of 9,000 people, aged 18 to 32, from the National Longitudinal Survey of Youth. She looked at how satisfied people were in their marriage and their sexual activity to determine whether they cheated.

What she discovered: In the average year, there’s about a five per cent chance that women who are completely financially dependent on their husbands will have an affair and a 15 per cent chance that men who are completely financially dependent on their wives will cheat. Eep!

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Not only that, but Munsch discovered that men who made money but weren’t the primary breadwinners were also more likely to cheat. The sweet spot, she discovered, was when they earned 70 per cent of the family’s total income. At that point, they were the least likely to cheat.

Women, on the other hand, are less likely to cheat the more money they earn for their families.

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What’s up with all of this? “We don’t want to be in relationships with people who make us feel like losers," says Munsch. "We like equity in our relationships."

For example, we don’t necessarily want to be with someone who is much more attractive, successful, or intelligent than we are, just the same as we don’t want to be with someone who is much less attractive, successful, or intelligent.

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Munsch says cheating is a way that people can distance themselves from a spouse that’s making them feel threatened. “Men in particular don’t like being dependent on another person,” she says. “There’s something in the combination of not liking inequality and their masculinity that can be dangerous.”

However, Munsch stresses that people shouldn’t freak out about her findings. “The majority of people who are economically dependent are not cheating,” she says. “Men have a 15 per cent chance of cheating but an 85 per cent chance of staying faithful. I don’t want people to read this and think their relationship is doomed.”

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Her takeaway: The most important thing is to pick a partner who is not going to be threatened by your success. And on the flip side, it’s important for you to be a cheerleader for your partner’s success, as well.