Preface

• Pages: 15-16

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PREFACE

Market definition is central to most antitrust cases, because

determining the existence of market power typically requires the

definition of a relevant market. The economic and legal analysis of

product market definition has advanced significantly past the simple tests

that were put f orth in the Supreme Court’s 1962 decision in Brown Shoe

Co. v. United States, 370 U.S. 294 (1962). Similarly, the analysis of

geographic markets has come to recognize the limitations of the tests that

focus exclusively on shipment patterns. Data limitations and institutional

considerations mean that there is no cookie-cutter approach to market

definition that can be applied in all contexts. As the sophistication of

quantitative economic techniques increases, parties often rely on

economic models and expert testimony to define a relevant market.

The purpose of this book is to provide a thorough and accessible

single volume practical guide to the definition of relevant markets and to

empirical techniques that have been used in a variety of industries. The

first chapter provides an overview of the theoretical concept of a relevant

market. The remaining chapters provide industry-specific illustrations of

how markets are defined in different contexts. This book exists only

because of the dedicated efforts of a large number of contributors. Henry

B. McFarland served as economics editor, and Mark W. Nelson, assisted

by Katia S. Colitti, served as legal editor. The following authors

contributed to individual chapters: Bruce Snapp, Serdar Dalkir, James

Nieberding, Matthew Wild, Henry McFarland, James Langenfeld,

William Nye, Louis Silvia, Jonathan Tomlin, Mary Coleman, David

Weiskopf, Kay Lynn Brumbaugh, William M. Katz, Jr., Nicole L.

Williams, Adam Weiskittel, Andrews Ridenour, Seth Sacher, Larry

Darby, Gloria J. Hurdle, Russell W. Pittman, Matthew B. Wright, Barry

C. Harris, John R. Morris, David A. Argue, Eric L. Cramer, Robert J.

Larner, Caterina K. Nelson, David Sorensen, Lawrence Wu, Carmine

Zarlenga, Kendall Millard, Erica Amarante, J. Manly Parks, Christopher

J. Heck, Erica E. Greulich, Lee L. Selwyn, Helen E. Golding, David S.

Evans, Robert Maness, Mohan Rao, Duke Fujiyama, Hideto Ishida, Rob

Kwinter, Stephen Kinsella, Evelina Kurgonaite, and Lorenzo Coppi.