Scientists tracked 1,000 couples who were either married or in serious relationships over five years and then looked for patterns among those who were still together.
They found that neither should have been divorced in the past, the man should be five or more years older and the woman should have received more education than the man.
The academics’ report, published in the European Journal of Operational Research, did say that men and women choose partners “on the basis of love, physical attraction, similarity of taste, beliefs and attitudes, and shared values”.
But it added that using “objective factors” such as age, education and cultural origin “may help reduce divorce”.
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