Fathers of daughters become more left-wing

The story this blog entry is based on found the more daughters a father had, the more liberal his thinking was. This story belongs in the Scientists R Stoopid section because the scientists do not know why having daughters makes the father more liberal.

Yin Yang Theory divides everything in the world into “Yin” and “Yang”. Yin is associated with women and liberal thinking, while Yang is associated with men and conservative thinking.

The reason fathers with daughters begin to think more liberally is that the father’s bodies gradually become more Yin because of physical exposure to their daughters. Those changes can become rooted so that when the daughters grow up and leave the home, the father can still display liberal thinking. 

The original news article is reprinted below.


Economists claim to have found a correlation between the number of daughters and sons in a household and their father’s political views.

By analysing data in the British Household Panel Survey, they found that 67 per cent of parents with three sons and no daughters voted for Labour or the Liberal Democrats.

This rose to 77 per cent in households with three daughters and no sons. A similar patter was found among families with two and four children.

Professor Andrew Oswald, from Warwick University, and Dr Nattavudh Powdthavee, of York University, wrote in an unpublished article that has been submitted to an economics journal: “This paper provides evidence that daughters make people more left-wing, while having sons, by contrast, makes them more right-wing.”

Professor Oswald said that having daughters made men “gradually shift their political stance and become more sympathetic to the ‘female’ desire for a … larger amount for the public good”.

“They become more left-wing. Similarly, a mother with sons becomes sympathetic to the ‘male’ case for lower taxes and a smaller supply of public goods,” he said.

“Political feelings are much less independently chosen than people realise. Children mould their parents.”

Researchers who looked at voting records of US Congressmen before and after having children have found a similar pattern, with the arrival of daughters having a particularly strong effect on fathers.

However Arthur Mayne, a biologist with three sons, dismissed the approach as “simplistic” and said the idea that women were “more likely to be softer politically than men” could be seen as a stereotype.

“Recent studies seem to prove that women with higher levels of testosterone – who are more likely to display dominant, positive behaviours – seem to produce more sons than daughters,” he said.

“Women with lower levels of testosterone, who are more likely to be empathetic and better listeners, tend to produce more daughters.

“It could be that the women who are most likely to produce daughters pick a partner who is closer to her more empathetic attitude to life.

“Hence people who are already more liberal may produce more daughters and those who are already conservative may produce more sons.”

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