According to this story, a woman’s weight has an adverse effect on family income. The effect is attributed largely (so to speak) to the marriage market and the ability to attract high-status, high-income mates. There is no corresponding difference in family income based on men’s weight (as originally formulated by Prof. Joe Jackson, “looks don’t count for much”). The study failed to credit Townsend’s Law of Mineralogy, which states that the carat weight of an engagement diamond varies indirectly with body mass index.
The study’s authors get a sypathetic hearing in today’s Boston Globe, where they describe men’s preference for lighter-weight wives as “discrimination” and “objectification.” Leaving aside the voluntary nature of marriage (see Nozick), the authors do not see a corresponding problem with the converse: “discrimination” against men of slender means. It is not clear whether whatever redistribution scheme they would use to overcome this injustice would involve the transfer of money or avoirdupois.