This has apparently been sitting in my ‘draft’ queue for several months now. No time like the present!
My economist nose sniffs a bit of correlation-not-causation here.
1. Did they control for single-vs-married? Single women have natural incentives to be thinner than married women. Married women living in an apartment would seem to be more likely to be looking to trade up for a better mate.
2. Did they control for # of children? It is, alas, a fact that, statistically, the fewer kids one has, the happier one is. (hard to believe, given how much I enjoy my kids, but I am not entitled to my own facts)
3. They also mentioned that homeowners spend more time on household chores, etc. I believe it – my chore duty dropped precipitously once I started renting an apartment. Plus, I can afford to live closer in, so my trips to the store take lest time and my commute is shorter.