This paper provides evidence that daughters make people more left-wing. Having sons, by contrast, makes them more right-wing. Parents, politicians and voters are probably not aware of this phenomenon -- nor are social scientists. The paper discusses its economic and evolutionary roots. It also...

Despite limited government control over the pre-1914 economy, opposition politicians were enthusiastic in blaming bad economic news on the incumbent. In a study of 458 by-elections between 1857 and 1914, we find that voters typically gave new governments a 'honeymoon' but thereafter held them...