Electoral Security as a Determinant of Legislator Activity, 1832–1918: New Data and Methods for Analyzing British Political Development

We consider the relationship between a Member of Parliament's electoral environment and his strategic choice of legislative activities between the First and Fourth Reform Acts in Britain. We argue that voters and party institutions put cross‐cutting pressures on members during this time, and that legislators calibrated their behavior in accordance with the marginality of their seat. We gather a massive new dataset documenting MPs’ biographical information, electoral records, roll calls, and speeches. The extent of MPs’ speech making and voting (our measures of legislative activity) vary with electoral security in ways consistent with our theoretical priors for Westminster systems.