It’s a Party in the MLB: An Analysis of Shirking Between Games in Major League Baseball

2021 ◽  
pp. 1-11
Author(s):  
Richard J. Paulsen
Keyword(s):  
Moral Hazard ◽  
Inverse Relationship ◽  
Major League Baseball ◽  
Job Security ◽  
Baseball Player ◽  
Difference In Differences ◽  
Estimation Strategy ◽  
Major League ◽  
Triple Difference ◽  
And Performance

This paper uses game-level Major League Baseball data to identify whether players with greater job security shirk in their preparation between games. Past work has identified evidence of moral hazard arising in multiyear Major League Baseball player contracts, but little work has been done in identifying when shirking takes place. Using a difference-in-differences estimation strategy, this study finds evidence of an inverse relationship between the number of years remaining on player contracts and performance when the player is playing on short rest, when opportunity to rest is scarce, but not on long rest. Using a triple-difference specification, evidence is found that this inverse relationship between years remaining on a player’s contract when playing on short rest occurs for games played in “party cities.” This evidence would suggest that between game preparation is one avenue through which players on multiyear contracts shirk.

scholarly journals Analysis of Injuries and Pitching Performance Between Major League Baseball and Nippon Professional Baseball: A 2-Team Comparison Between 2015 to 2019

2021 ◽  
Vol 9 (5) ◽  
pp. 232596712110088
Author(s):  
Ryan L. Crotin ◽  
Toshimasa Yanai ◽  
Peter Chalmers ◽  
Kenneth B. Smale ◽  
Brandon J. Erickson ◽  
...  
Keyword(s):  
Los Angeles ◽  
Major League Baseball ◽  
Professional Baseball ◽  
Injury Incidence ◽  
Mechanism Of Injury ◽  
Research Collaborations ◽  
Minor League ◽  
Major League ◽  
Player Game ◽  
And Performance

Background: There has been minimal research investigating injury and pitching performance differences between Major League Baseball (MLB) and other professional leagues. Purpose/Hypothesis: This 2-team comparison between MLB and Japan’s Nippon Professional Baseball (NPB) involved affiliated players over 5 years. We hypothesized that teams would differ in the injury incidence, mechanism of injury, pitch velocity, and pitch type usage. Study Design: Descriptive epidemiology study. Methods: Between 2015 and 2019, pitching data as well as injury statistics for the highest level and minor league affiliates of the Los Angeles Angels (MLB) and the Hiroshima Toyo Carp (NPB) were reviewed for significant differences in the injury prevalence, injury type, mechanism of injury, and days missed. In total, 3781 MLB and 371 NPB injuries were studied. Results: MLB-affiliated players were significantly younger, taller, and heavier ( P < .001) than were NPB-affiliated players. MLB-affiliated pitchers threw faster than did their NPB counterparts ( P = .026). MLB minor league pitchers threw more curveballs than did NPB minor league pitchers ( P = .004), and MLB minor league relief pitchers threw more sliders than did NPB minor league relief pitchers ( P = .02). The MLB team had a 3.7-fold higher incidence of injuries versus the NPB team (0.030 vs 0.008 injuries per player-game, respectively) as well as more repeat injuries, with fewer days missed per injury (15.8 ± 54.7 vs 36.2 ± 55.1 days, respectively; P < .001). The MLB team also had a higher percentage of injuries that were throwing related ( P < .001), were contact related ( P < .001), and occurred outside of competition ( P < .001) compared with the NPB team. Conclusion: This is the first empirical study examining injury trends and pitching characteristics between MLB and NPB athletes. MLB-affiliated pitchers threw faster and relied more on breaking pitches in comparison with NPB-affiliated pitchers. From injury data, MLB players were younger, taller, and heavier with a higher percentage of throwing-related injuries, contact injuries, and injuries sustained outside of competition. Overall, the MLB team indicated a 3.7-fold higher rate of reported injuries with fewer days missed per injury than did the NPB team. Competitive conditions are distinctly different between MLB and NPB, and thus, more extensive research collaborations in the future can identify best practices to advance health and performance for both leagues.

scholarly journals Performance and Return to Sport After Hip Arthroscopic Surgery in Major League Baseball Players

2019 ◽  
Vol 7 (2) ◽  
pp. 232596711982583 ◽  
Author(s):  
Robert A. Jack ◽  
Kyle R. Sochacki ◽  
Takashi Hirase ◽  
Justin Vickery ◽  
Patrick C. McCulloch ◽  
...  
Keyword(s):  
Major League Baseball ◽  
Statistical Significance ◽  
Arthroscopic Surgery ◽  
Return To Sport ◽  
Control Group ◽  
P Value ◽  
Postoperative Performance ◽  
Significant Difference ◽  
Major League ◽  
And Performance

Background: Femoroacetabular impingement (FAI) is a common cause of hip pain that may lead to decreased performance in Major League Baseball (MLB) players. Purpose: To determine the (1) return-to-sport (RTS) rate in MLB players after hip arthroscopic surgery for FAI; (2) postoperative career length, innings pitched (IP) (pitchers), and plate appearances (PA) (position players); (3) preoperative and postoperative performance; and (4) postoperative performance compared with control players matched by position, age, years of experience, and performance. Study Design: Cohort study; Level of evidence, 3. Methods: MLB athletes who underwent hip arthroscopic surgery for FAI and matched controls were identified. Demographic and performance data were collected. RTS was defined as playing in at least 1 MLB game after surgery. Continuous variables of each group were compared using a 2-tailed paired-samples Student t test for normally distributed data. The chi-square test was used to analyze categorical data. The Bonferroni correction was used to control for multiple comparisons, with statistical significance defined by a P value of ≤.007. Results: A total of 50 players (57 surgeries) were analyzed (mean age, 30.4 ± 3.9 years; mean MLB experience at the time of surgery, 7.0 ± 4.6 years). Pitchers (31 surgeries; 54.4%) represented the largest proportion of players analyzed. Of these players, 42 (47 surgeries; 82.5%) were able to RTS at a mean of 8.3 ± 4.1 months. The overall 1-year MLB career survival rate of players undergoing FAI surgery was 78.9%. Players in the control group were in MLB a similar number of years (4.0 ± 2.9 years) to players who underwent surgery (3.3 ± 2.4 years) ( P > .007). There was no significant decrease in IP or PA per season after surgery ( P > .007). There was no significant difference in performance for pitchers and nonpitchers compared with matched controls after surgery ( P > .007). Conclusion: The RTS rate for MLB athletes after hip arthroscopic surgery for FAI was high. There were similar IP, PA, and career lengths postoperatively compared with preoperatively and with matched controls. There was no significant difference in performance for pitchers and nonpitchers compared with matched controls after surgery.

scholarly journals Sound Symbolism in Baseball Player Names

Names ◽  
2021 ◽  
Vol 69 (1) ◽  
pp. 20-35
Author(s):  
Stephanie S. Shih ◽  
Deniz Rudin
Keyword(s):  
Recent Work ◽  
Real World ◽  
Major League Baseball ◽  
Sound Symbolism ◽  
Baseball Player ◽  
Formation Processes ◽  
Major League ◽  
Physical Attributes ◽  
Naming Practices

Recent work has argued that sound symbolism plays a much larger part in language than previously believed, given the assumption of the arbitrariness of the sign. A slate of recent papers on Pokémonastics, for example, has found sound symbolic associations to be rampant in Pokémon names cross-linguistically. In this paper, we explore a real-world dataset that parallels Pokémon, in which human players similarly have physical attributes of weight, height, and power: Major League Baseball. We investigated phonological correlations between baseball player statistics and their given first names, chosen baseball-official first names,and baseball nicknames. We found numerous sound symbolic associations in player-chosen names and nicknames, where conscious design may play a role in choosing a name that communicates an attribute. These associations were often mediated by language-specific hypocoristic formation processes. We conclude that sound symbolism occurs in real-world naming practices, but only when names are chosen in cognizance of the relevant attributes.

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