Many theoretical and empirical accounts of representation argue that primary elections are a polarizing influence. Likewise, many reformers advocate opening party nominations to nonmembers as a way of increasing the number of moderate elected officials. Data and measurement constraints, however, have limited the range of empirical tests of this argument. We marry a unique new data set of state legislator ideal points to a detailed accounting of primary systems in the United States to gauge the effect of primary systems on polarization. We find that the openness of a primary election has little, if any, effect on the extremism of the politicians it produces.

Segnalazione bibliografica. American Journal of Political Science, Volume 55, Number 4, 1 October 2011 , pp. 923-936(14) Autore: Margit Tavits Abstract This study argues that organizationally stronger local party branches are more powerful within the party than organizationally weaker branches: they can better perform the tasks central to the party, which include communication with, and mobilization of, voters. I further argue that this subunit power should be manifested in the parliamentary behavior and status of MPs: those from districts where the local party organization is strong are more...

Segnalazione bibliografica. American Political Science Review 01 August 2011 105: 631-641 Autore: Andrew Rehfeld Abstract In this reply to Jane Mansbridge's “Clarifying the Concept of Representation” in this issue (American Political Science Review 2011). I argue that our main disagreements are conceptual, and are traceable to the attempt to treat the concept of representation as a “single highly complex concept” as Hanna Pitkin once put it. Instead, I argue, it would be more useful to develop the various concepts that emphasize the underlying forms of representation. Against the view that empirical regularity should guide concept formation, I suggest that the failure to find...