We find that being admitted to a higher ranked university has substantial returns in terms of partner quality for women, while estimates for men are about half the size and not significantly different from zero.
From the conclusions:
In terms of mechanisms we show that, while part of our results might be explained by the direct effect of universities acting as meeting places, this is unlikely to be the only channel. In particular, less than a quarter of couples could have met by attending the same university. Instead other channels such as accessing a ”higher quality” social network of fellow students from university upon admission to a higher ranked university, getting into different types of jobs with ”higher quality” potential partners and becoming more attractive appear to be important as well.