What if, for instance, men who want a divorce manage to quit working/become involuntarily unemployed because they don't want their incomes going toward alimony for a spouse they now dislike?
Or what if it's like those initial studies linking low body weight with high mortality, which we found were mixing together healthy skinny people and people who'd lost a lot of weight due to cancer? Maybe men who are involuntarily unemployed are drawn from a mix of guys with bad luck and guys with traits that cause them to be less stably employed?
How do these decisions fluctuate or not with the national unemployment rate?
It seems like this is an interesting exploratory study but not yet very specific.