In a research paper titled Limited Attention, Marital Events and Hedge Funds, conducted by a group of researchers from SMU and the University of Florida, investors were found to see worse returns during the periods surrounding both marriage and divorce. The research found that the annualised alpha, a measure of performance on a risk-adjusted basis, of younger fund managers fell nearly 16 per cent during a divorce, while that of the older fund managers dropped about 4 per cent. In marriage, the average annualised alpha for older fund managers drops about 14 per cent during the marriage event window, while that for younger fund managers increases about 2 per cent during the same time. The study was published by the Social Science Research Network this month.