Cranmer Skyler J, Dawes Christopher T
Department of Political Science, University of North Carolina, Chapel Hill, NC 27599-3265, USA.
Twin Res Hum Genet. 2012 Feb;15(1):52-9. doi: 10.1375/twin.15.1.52.
Attitudes towards foreign policy have typically been explained by ideological and demographic factors. We approach this study from a different perspective and ex amine the extent to which foreign policy preferences correspond to genetic variation. Using data from the Minnesota Twin Family Study, we show that a moderate share of individual differences in the degree to which one's foreign policy preferences are hawkish or dovish can be attributed to genetic variation. We also show, based on a bivariate twin model, that foreign policy preferences share a common genetic source of variation with political ideology. This result presents the possibility that ideology may be the causal pathway through which genes affect foreign policy preferences.
对外交政策的态度通常由意识形态和人口统计学因素来解释。我们从不同的角度进行这项研究，考察外交政策偏好与基因变异的对应程度。利用明尼苏达双胞胎家庭研究的数据，我们发现，个人在外交政策偏好的鹰派或鸽派程度上的差异，有相当一部分可归因于基因变异。我们还基于双变量双胞胎模型表明，外交政策偏好与政治意识形态有共同的基因变异来源。这一结果表明，意识形态可能是基因影响外交政策偏好的因果途径。
