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173 U. Pa. L. Rev. Online 1 (2025)

handle is hein.journals/pennumbra173 and id is 1 raw text is: 










                                  ESSAY




                  AGAINST THE SLIDING SCALE



                              ALAN   J. MEESE'


                              INTRODUCTION

    Gavil and Salop  claim that the Chicago School's conservative critique of
antitrust law has peddled  numerous   pro-defendant  economic  assumptions,
misleading  courts in their assessment of alleged exclusionary conduct.1 The
resulting legal standards, they  say, require plaintiffs to adduce too  much
evidence to establish a prima facie case, for instance, producing false negatives
and  thus allowing restraints that injure purchasers to avoid condemnation.
Drawing   on  decision theory, they  propose  reforms  to the  rule of reason
analysis applied to exclusionary agreements to extirpate the Chicago School's
baneful influence. In suggesting these reforms, they hope  sometimes  to alter
the parties' respective burdens  of production  and the manner   of satisfying
such burdens.2
    This essay focuses  on Gavil and  Salop's embrace  of a so-called sliding
scale approach to rule of reason analysis.3 This approach is best exemplified
by the quick look method  of assessing restraints. Under this approach, courts
presumptively   condemn   restraints they deem  inherently suspect without




    t Ball Professor of Law, Dean's Fellow and Co-Director, Center for the Study of Law and
Markets, William and Mary Law School.
    1 Andrew I. Gavil & Steven C. Salop, Probability, Presumptions and Evidentiary Burdens in
Antitrust Analysis: Revitalizing the Rule of Reason for Exclusionary Conduct, 168 U. PA. L. REV. 2107,
2110 (2020); id. at 2122-2124 (describing the Chicago School approach to evaluating exclusionary
conduct).
    2 See id. at 2113 (We propose eliminating continued reliance on the unwarranted assumptions
that have raised the plaintiff's burden in exclusionary conduct cases and tipped the litigation scales
in favor of defendants ....
    3 Id. at 2121.


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