This article presents an educational exercise in which statistical process control charts are constructed and used to identify the Steroids Era in American professional baseball. During this period (roughly 1993 until the present), numerous baseball players were alleged or proven to have used banned, performance-enhancing drugs. Also observed during this period was an increase in offensive perf...

Airlines as Baseball Players: Another Approach for Evaluating an Equal-Safety Hypothesis David Czerwinski, Arnold Barnett Business leaders routinely seek to apply best practices, but they want clear evidence that a particular practice is superior to available alternatives. However, in the context of safety among entities like airlines or chemical plants, major disasters are extremely rare, whic...

Thenar pain can represent a significant morbidity for a baseball player who relies on manual dexterity for gripping a bat and precise and accurate throws. While osseous, ligamentous, and neurovascular pathologies are commonly considered, musculotendinous injuries are often neglected in the differential diagnosis of thenar pain. We present a case of adductor pollicis longus strain as a cause of ...

I investigate whether the removal of the reserve clause in professional baseball a ected the competitive nature of the industry in the context of whether teams are actively attempting to monopolize in highvalued inputs. It is possible that a very few teams could purchase all of the best players over time leading to a highly concentrated industry in certain production categories and adversely a ...

Statistical analysis is a major aspect of baseball, from player averages to historical benchmarks and records. Much of baseball fanfare is based around players exceeding the norm, some in a single game and others over a long career. Career statistics serve as a metric for classifying players and establishing their historical legacy. However, the concept of records and benchmarks assumes that th...

Nos anos 1990 a disparidade no orçamento entre os times da Major League Baseball (MLB) causou uma queda competitividade na liga, tornando o uso de modelos estatísticos dados saída para clubes com menor orçamento. O objetivo deste artigo é aplicar metodologias mineração dados, utilizando bases MLB 1871 2019, entender quais são as estatísticas relevantes dentro do esporte e como elas se comportam...

In this paper, we describe the Baseball Announcers’ Language Linked with General Annotation of Meaningful Events (BALLGAME) project – a text corpus for research in computional semantics. We collected pitch-by-pitch event data for a sample of baseball games and used this data to build an annotated corpus composed of transcripts of radio broadcasts of these games. Our annotation links text from t...

We investigate the effect of new facilities on attendance in professional baseball, basketball, and football from 1969 to 2001. We find a strong, persistent effect in baseball and basketball, and little effect in football. Size and duration estimates imply that baseball teams sell 2,500,794 additional tickets over the first eight seasons, basketball teams 293,878 over the first nine seasons, an...

INTRODUCTION Shoulder injuries are common in baseball players, which may be related to scapular malposition (Burkhart 2003). Although a few studies demonstrated scapular malposition in baseball players using clinical measurement (Laudner 2010, Thomas 2010), no data currently exist that demonstrated 3-dimentional (3D) scapular position and orientation using a technique that eliminates skin artif...