Leadership Apr 7, 2014

The All-Star Pitcher’s Advantage

An infographic illustrating the connection between pitcher status and umpire bias.

Based on the research of

Jerry Kim

Brayden King

Cover art by Yevgenia Nayberg.
Infographic designed by Rebekah Raleigh, Liz Novoa, and Gregg Mrowka.
Open Infographic

Umpires are not perfect. In fact, they have predictable biases. Using the infographic below, watch how the likelihood of an umpire mistakenly calling a strike a “ball” is influenced by two factors: a pitcher’s status, and how far the pitch is from the edge of the strike zone.

To learn more about status effects, and about other factors that influence umpire calls, read the related article.

Featured Faculty

Brayden King

Max McGraw Chair in Management and the Environment, Professor and Department Chair of Management & Organizations

About the Research

Kim, Jerry and Brayden G. King. Forthcoming. Seeing Stars: Matthew Effects and Status Bias in Major League Baseball Umpiring. Management Science.

Read the original

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