I think it's mostly of the first. Having an income makes dating easier, having a higher one makes it even more so. One way to test that might be to follow a gr

I think it's mostly of the first. Having an income makes dating easier, having a higher one makes it even more so. One way to test that might be to follow a group of unmarried men who are all the same age, and then 10 years later and compare the still unmarried with the long-time married (5+ years).