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Monday, March 03, 2014

An Empirical Analysis of the Infield Fly Rule

The third piece in my "Infield Fly Rule Trilogy," titled An Empirical Analysis of the Infield Fly Rule, is up on SSRN. As the title suggests, I (with the help of seven FIU students, who all seemed to enjoy themselves) conducted an empirical study of the past four MLB seasons to find out the frequency of Infield Fly calls and the effectiveness of the rule in avoiding dramatically inequitable cost-benefit exchanges.

The earlier pieces can be found here, here, and here. The abstract of the new paper follows the jump.

Legal scholars have written extensively about baseball’s Infield Fly Rule -- its history and logic, its use as legal metaphor, and its cost-benefit policy rationales. This paper now conducts the first empirical analysis of the rule, exploring whether the rule’s legal and policy justifications are statistically supported. Based on a review of every fly ball caught by an infielder in the relevant game situation in Major League Baseball from 2010-2013, this paper measures the frequency and location of Infield Fly calls and the effect the rule has on individual games, all to determine whether the feared cost-benefit disparities that motivate the rule would, in fact, result absent the rule. Ultimately, the merits of the Infield Fly Rule cannot be measured empirically, at least not without resort to some ex ante value judgments; the normative conclusion one draws about these data depends on where one starts -- a supporter of the rule and a skeptic both will find confirmation in the information gathered in this paper. Nevertheless, the numbers shed specific and interesting light on the realities of baseball’s most unique and famous (or infamous) play.

Posted by Howard Wasserman on March 3, 2014 at 09:31 AM in Article Spotlight, Howard Wasserman | Permalink

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