Study: Same-sex marriage in 20 years had no negative effects

The U.S. has not seen any negative effects on marriage, divorce or living arrangements among all couples since Massachusetts issued the first state-sanctioned, same-sex marriage licenses 20 years ago, a new analysis says.

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The analysis found that after states legalized marriage for same-sex couples, marriage numbers jumped in those states at rates greater than what could be accounted for by the new marriages of same-sex couples alone.

Researchers found no consistent evidence of an increase in divorce as a consequence of legalizing marriage for same-sex couples.

The analysis suggests that issuing marriage licenses to same-sex couples had, if anything, led to a small positive impact on marriage attitudes among high school seniors.