High-earning wives 'are more likely to end up divorced'

The American researchers studied the marriages and income of more than 2,500 women who married for the first time between 1979 and 2002.

They found that those women who consistently made more money than their husbands were up to 38 per cent more likely to divorce than others.

Jay Teachman, of Western Washington University, said there could be several reasons behind the statistic.