Durham is the pits (for local disproportionality)

Disproportionality is the degree of mismatch between parties’ shares of votes and their shares of seats, with measures of disproportionality usually calculated for national elections. The share of votes is simply the share of all votes cast nationwide, and the share of seats is simply the share of all seats contested. Dr. Chris Hanretty of the University of East Anglia uses this model to show us that Durham is the worst place in the country to live – if only in this particular respect.