Republicans are happier and more stable in their marriages than Democrats, according to a study released Monday.

W. Bradford Wilcox, a prominent sociologist at the University of Virginia, released the analysis finding that Republicans are more often married, less likely to be divorced, and happier in their marriages than Democrats.

Forty percent of Democrats between the ages of 20 and 60 are currently married versus 57 percent of Republicans in the same age range, according to evaluation of the national General Social Survey.

Among Democrats who have previously married, 47 percent have been divorced compared to 41 percent of Republicans who have previously married.

Wilcox said this is potentially because Republicans are more likely to embrace a “marriage-mindset,” which views marriage as the best way to “anchor” a relationship and a family. He said this mindset also emphasizes marriage as a binding commitment, which makes people more likely to invest themselves into the institution.

“If you value an institution and if you value a relationship, you’re more likely to give that person and institution the benefit of the doubt,” he said.

Wilcox and his co-author Nicholas Wolfinger also explored marital quality, finding that among those who are married, 67 percent of Republicans say they are “very happy” in their marriages. Sixty percent of Democrats say the same, marking a seven-point gap.

This disparity shrank to 3 percent when the researchers controlled for demographic and cultural differences between each party.

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White and religious Americans, who are more likely to identify as Republicans, were also more likely to report they are “very happy” in their marriages. Education did not play a significant role.

Wilcox and Wolfinger wrote in their report for the Institute for Family Studies that while race and religiosity account for more than half of the “Republican advantage” in marital quality, the remainder may be explained through attitudes.

“Perhaps Republicans are more optimistic, more charitable, or more inclined to look at their marriages through rose-colored glasses,” they wrote.

Wilcox said this blend of optimism and charity along with the tendency of conservatives to view marriage more favorably could explain why Republicans perceive their marriages more positively.

Wilcox said he began investigating the link between partisanship and marriage following the rise of the 2010 book “Red Families v. Blue Families,” which argued that blue regions cultivate stronger and more stable families because of liberal emphasis on education and the tendency to delay marriage and parenthood, all of which are linked to lower divorce rates.

Wilcox said his study shows that the “presumption” that blue families are stronger and more stable “doesn’t hold water in many important respects” and, in fact, “suggests the contrary.”