Political ideology has been hypothesized to be associated with cooperation and national parochialism (i.e., greater cooperation with members of one’s nation), with liberals thought to have more cooperation with strangers and less national parochialism, compared to conservatives. However,...

Political ideology has been hypothesized to be associated with cooperation and national parochialism (i.e., greater cooperation with members of one’s nation), with liberals thought to have more cooperation with strangers and less national parochialism, compared to conservatives. However,...