Peter K. Hatemi

TL;DR: Evidence that variations in political attitudes correlate with physiological traits is presented, suggesting that individuals with measurably lower physical sensitivities to sudden noises and threatening visual images were more likely to support foreign aid, liberal immigration policies, pacifism, and gun control.

TL;DR: Testing the causal relationship between personality traits and political attitudes using a direction of causation structural model on a genetically informative sample suggests that personality traits do not cause people to develop political attitudes; rather the correlation between the two is a function of an innate common underlying genetic factor.

TL;DR: This paper found that individual differences in political attitudes are accounted for by a variety of environmental influences with the role of shared "family" environment, including parental socialization, accumulating markedly between the ages of 9 and 17.

TL;DR: This article investigated the degree of concordance among spouses on a variety of personality traits and found that physical and personality traits display only weakly positive and frequently insignificant correlations across spouses, whereas political attitudes display interspousal correlations that are among the strongest of all social and biometric traits.

TL;DR: This paper found that genetic influences account for an even greater proportion of individual differences than reported by studies using more limited data and more elementary estimation techniques, making it increasingly difficult to deny that genetics plays a role in the formation of political and social attitudes.