Political sorting

[timelets]

http://www.econtalk.org/lilliana-mason-on-uncivil-agreement/

Mason argues that political partisanship has become stronger in America in recent years because it aligns with other forms of community and identity. People are associating primarily with people who share their political views in their other social activities outside of politics. As a result, they encounter fewer people from the other side. The intensity of partisanship can even overcome ideology as partisans change their policy positions in their eagerness to be on the winning side.

The win-lose mindset prevents us, among other things, from making good government policies because the need for victory overrides rational choices.