Berlinski, SamuelDewan, TorunDowding, Keith2015-12-070022-3816http://hdl.handle.net/1885/19977Government ministers in Parliamentary democracies are career politicians for whom public service is an important source of motivation. The length of their tenure is controlled by the Prime Minister. We test a simple Principal-Agent model of parliamentary201010.1017/S00223816099908432015-12-07