Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Policy representation implies not only congruence between constituent and representative preferences, but also the ability of representatives to perceive and adjust to changing constituent preferences. This paper examines the extent of such representation among U.S. senators. It shows that a senator's voting behavior strongly affects his chances of election, but that senators demonstrate only a limited ability to adapt to changing constituent preferences. Copyright Martinus Nijhoff Publishers 1985