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46 Ariz. St. L.J. 41 (2014)
What's Age Got to Do with It? Supreme Court Appointees and the Long Run Location of the Supreme Court Median Justice

handle is hein.journals/arzjl46 and id is 51 raw text is: 





WHAT'S AGE GOT TO Do WITH IT? SUPREME
COURT APPOINTEES AND THE LONG RUN
LOCATION OF THE SUPREME COURT MEDIAN
JUSTICE

Jonathan N. Katz* and Matthew L. Spitzer


                              ABSTRACT
   For approximately the past forty years, Republican Presidents have
appointed younger Justices than have Democratic Presidents. Depending on
how one does the accounting, the average age difference will vary, but will
not go away. This Article posits that Republicans appointing younger
justices than Democrats may have caused a rightward shift in the Supreme
Court. We use computer simulations to show that if the trend continues the
rightward shift will likely increase. We also produce some very rough
estimates of the size of the ideological shift, contingent on the size of the
age differential. In addition, we show that the Senate's role in confirming
nominated Justices has a significant moderating effect on the shift. Last, we
consider the interaction between our results and the oft-proposed eighteen-
year staggered terms for Supreme Court Justices. We show that such an
institutional change would almost completely wipe out the ideological
effect of one Party appointing younger Justices.










   *. Kay Sugahara Professor of Social Sciences and Statistics, and Chair, Division of the
Humanities and Social Sciences, California Institute of Technology.
   **. Director Searle Center on Law, Regulation, and Economic Growth, and Howard and
Elizabeth Chapman Professor of Law, Northwestern University. Both authors express thanks to
Michael Levine, Thomas Miles, John Yoo, and Micah Schwartzman, as well as the participants
at conferences at the University of Chicago and at Northwestern University. Able research
assistance was provided by Molly Slusher and Kris Teng.

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