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122 Yale L. J. 154 (2012-2013)
How Much Difference Does the Lawyer Make: The Effect of Defense Counsel on Murder Case Outcomes

handle is hein.journals/ylr122 and id is 164 raw text is: JAMES M. ANDERSON & PAUL HEATON

How Much Difference Does the Lawyer Make?
The Effect of Defense Counsel on Murder Case Outcomes
ABSTRACT. One in five indigent murder defendants in Philadelphia is randomly assigned
representation by public defenders while the remainder receive court-appointed private
attorneys. We exploit this random assignment to measure how defense counsel affect murder
case outcomes. Compared to appointed counsel, public defenders in Philadelphia reduce their
clients' murder conviction rate by 19% and lower the probability that their clients receive a life
sentence by 62%. Public defenders reduce overall expected time served in prison by 24%. We
find no difference in the overall number of charges of which defendants are found guilty. When
we apply methods used in past studies of the effect of counsel that did not use random
assignment, we obtain far more modest estimated impacts, which suggests defendant sorting is
an important confounder affecting past research. To understand possible explanations for the
disparity in outcomes, we interviewed judges, public defenders, and attorneys who took
appointments. Interviewees identified a variety of institutional factors in Philadelphia that
decreased the likelihood that appointed counsel would prepare cases as well as the public
defenders. The vast difference in outcomes for defendants assigned different counsel types raises
important questions about the adequacy and fairness of the criminal justice system.
AUTHORS. James M. Anderson, J.D., is a behavioral and social scientist at the RAND
Corporation, and Paul Heaton, Ph.D., is an economist at RAND. Many thanks to Marcy
Bloomfield, Paul Conway, Richard McSorley, and numerous anonymous judges and lawyers
with whom we spoke and who provided invaluable data and guidance regarding the functioning
of the Philadelphia court system. Yair Listokin, Thomas Cohen, David Abrams, Eric Helland,
Nicholas M. Pace, and several anonymous reviewers provided helpful comments on earlier
versions of the manuscript. We also thank Sarah Hauer, Marjorie Bowersock, and Alexandra
Roth, and the team at the The Yale Law Journal for numerous edits and suggestions. This
publication was made possible by the National Institute of Justice, Office of Justice Programs
Award Number 2009-IJ-CX-0013. The opinions, findings, conclusions, and recommendations
expressed in this publication are those of the authors and do not necessarily reflect the views of
the Department of Justice. James M. Anderson worked as an Assistant Federal Defender in the
Capital Habeas Unit of the Defender Association of Philadelphia from 1996 to 2004.

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