Economist: Hunkier than thou
Scientists are finally succeeding where so many men have failed: in understanding why women find some guys handsome and others hideous.
WHEN it comes to partners, men often find women’s taste fickle and unfathomable. But ladies may not be entirely to blame. A growing body of research suggests that their preference for certain types of male physiognomy may be swayed by things beyond their conscious control—like prevalence of disease or crime—and in predictable ways.
Masculine features—a big jaw, say, or a prominent brow—tend to reflect physical and behavioural traits, such as strength and aggression. They are also closely linked to physiological ones, like virility and a sturdy immune system.
The obverse of these desirable characteristics looks less appealing. Aggression is fine when directed at external threats, less so when it spills over onto the hearth. Sexual prowess ensures plenty of progeny, but it often goes hand in hand with promiscuity and a tendency to shirk parental duties or leave the mother altogether.
So, whenever a woman has to choose a mate, she must decide whether to place a premium on the hunk’s choicer genes or the wimp’s love and care. Lisa DeBruine, of the University of Aberdeen, believes that today’s women still face this dilemma and that their choices are affected by unconscious factors. ...
... Since violent competition for resources is more pronounced in unequal societies, Dr Brooks predicted that women would value masculinity more highly in countries with a higher Gini coefficient, which is a measure of income inequality. And indeed, he found that this was better than a country’s health statistics at predicting the relative attractiveness of hunky faces.
The rub is that unequal countries also tend to be less healthy. So, in order to disentangle cause from effect, Dr Brooks compared Dr DeBruine’s health index with a measure of violence in a country: its murder rate. Again, he found that his chosen indicator predicts preference for facial masculinity more accurately than the health figures do (though less well than the Gini).
However, in a rejoinder published in the same issue of the Proceedings, Dr DeBruine and her colleagues point to a flaw in Dr Brooks’s analysis: his failure to take into account a society’s overall wealth. When she performed the statistical tests again, this time controlling for GNP, it turned out that the murder rate’s predictive power disappears, whereas that of the health indicators persists. In other words, the prevalence of violent crime seems to predict mating preferences only in so far as it reflects a country’s relative penury.
The statistical tussle shows the difficulty of drawing firm conclusions from correlations alone. Dr DeBruine and Dr Brooks admit as much, and agree the dispute will not be settled until the factors that shape mating preferences are tested directly. ...