The children of good-looking parents are more like to become rich than the offspring of unattractive parents, a new study has found.

The National Bureau of Economic Research study, titled “The Economic Impact of Heritable Physical Traits: Hot Parents, Rich Kid?,” found people with attractive parents earn an average of $2,300 more per year than those with average-looking or unattractive parents.

Labor economist Daniel S. Hamermesh, a co-author of the study, says the increased money-making potential isn’t just about looks; it’s about money-making skills. “Good-looking parents make more money,” he says. “The effects of looks on money have been shown countless times. Their beauty affects their income, and they pass that income-earning ability down to their kids.”