What do Arend Lijphart, John McGarry and Tywin Lannister have in common? Power-sharing! Since we are halfway through the third season, and we got a nice dialogue about the interplay between nation, nationalism and anarchy between Varys and Littlefinger (not in the book), it is time for us to ponder how these basic concepts play in Westeros.* * A reminder that Westeros is only one part of this world--there are the places beyond the seas that...