Contributions published at Services & Operations Management (Helmut Max Dietl)

We use three natural field experiments to examine anti-Semitism in Italy by sending email inquiries to amateur football clubs, landlords, and employers and comparing the response rates to emails sent with Jewish- and non-Jewish-sounding names. Italy is an interesting country as discrimination was heterogeneous and geographically unevenly distributed during World War II. We analyze if today's anti-Semitism in Italy is geographically correlated to the deportations and killings of Jews during the Holocaust. The results show significant discrimination when looking for football club and an apartment, but not when seeking a job. We find markedly different results for women. Comparing areas with different societal and economic implications provides us with a more informed perspective about the extent of discrimination.

Purpose: Previous research indicates gender discrimination in leadership positions. However, performance and not gender should be the key indicator when evaluating a leader. We examine the performance effect of changing from a female to a male coach and vice versa. Methodology: We analyze 1,093 Billie Jean King Cup singles matches from 2006 to 2016, with the match result as the dependent variable. First, we examine the very short-term effects arising from the change of a coach with a regression discontinuity design. Second, we evaluate the short-, medium-, and long-term performances. Findings: The results show that the gender of the new coach has no significant effect on performance. However, when a female coach succeeds another female coach, performance improves. This provides an argument in favor of female leadership. Practical Implications: Team managers should primarily focus on the quality of the coach instead of gender. The results also suggest that a continuum of female leadership is likely advantageous. Research Contribution: This paper contributes to the debate regarding the misrepresentation of women as head coaches and offers an avenue for further research.

The television broadcasting industry is of crucial economic and social importance. Traditionally, this industry has been dominated by free-to-air TV (FTV) but due to technological progress, subscription-based pay TV (PTV) has emerged as a competing business model. A key question for the PTV broadcasters is whether to air commercials in addition to charging subscription fees. Based on a theoretical model of asymmetric competition between a PTV and an FTV broadcaster, we examine the effects of placing PTV advertising on broadcaster market strategies, viewer demands, broadcaster profits and consumer surplus. We find that introducing advertising on PTV can induce a higher viewer demand on this channel but a lower viewer demand on the FTV channel. Surprisingly, consumers can benefit through the introduction of advertising in PTV and broadcaster profits can increase if the viewer disutility of advertising is sufficiently large. Our study provides an analytical framework for choosing and implementing an optimal PTV strategy when an FTV competitor preexists in the market. Furthermore, our study derives implications for policymakers and regulatory authorities by showing that additional PTV advertising is not necessarily socially undesirable due to the strategic market reactions.

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Empirical studies show that first- and second-generation immigrants are less likely to be members of sports clubs than their non-immigrant peers. Common explanations are cultural differences and socioeconomic disadvantages. However, lower participation rates in amateur sport could be at least partly due to ethnic discrimination. Are minority ethnic groups granted the same right to belong as their non-immigrant peers? To answer this question, this paper uses publicly available data from a field experiment in which mock applications were sent out to over 1,600 football clubs in Germany. Having a foreign-sounding name significantly reduces the likelihood of being invited to participate. The paper concludes that amateur football clubs are not as permeable as they are often perceived to be. It claims that traditional explanations for lower participation rates of immigrants need to be revisited.

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This article describes the content published in the Journal of Sports Economics (JSE) for its 20th anniversary. The analysis focuses on the most relevant topics and captures the characteristics of authors, institutions, and types of collaborations over a 20-year period. In total, the sample includes 663 research articles (published from February 2000 to December 2019) and 856 authors from 490 institutions. The 20-year period offers an insightful picture of sports economics research. The article discusses additional features and trends and reflects on expected directions for future research in the journal.

While the birthday effect has been widely studied in the economics and sport literature, this study introduces the concept of the ‘real’ birthday effect. It holds that birthday celebrations yield fatigue, which negatively affect running performance. The purpose of this study is to examine the effect of players’ birthdays on post-birthday running performance using data from the German Football Bundesliga (2011–2018). The dataset includes 1,040 different field players who played in 2,142 matches (n= 49,233). Running performance was measured by the total distance covered during the game (in m per minute) and the number of intensive runs (>20 and <24 km/h; per minute). On average, players ran 123.68 m and performed 0.70 intensive runs per minute, which are equivalent to 11.1 km and 63 intensive runs during a 90-minute match. The results of fixed effects panel regression analyses, which also control for various player, game, and team characteristics, show that players perform significantly fewer intensive runs on the day following their birthday. This finding supports the concept of the ‘real’ birthday effect. Football coaches should reconsider fielding players on match days succeeding their birthday as these players perform significantly fewer intensive runs.

This paper empirically assesses peer effects of high performing team members in reciprocally interdependent team production. Using data from the National Basketball Association (NBA), we identify peer effects by exploiting unforeseen in-game injuries of high performing players. Results indicate that without a high performing player, other team members maintain efficiency and the division of tasks among each other. However, they slightly increase risk taking and decrease their individual output, resulting in an inferior overall outcome. These effects depend on whether a high performing player has a team-oriented or a self-oriented role in the team. Additionally, we observe that relatively skilled players try to step in for the absent high performing player.

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