Alexander Krumer
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Krumer
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Alexander
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Why Specialized Service Ecosystems Emerge-the Case of Smart Parking in Germany

2023-11-25 , Zimmermann, Sina , Schulz, Thomas , Hein, Andreas , Alexander, • , Kaus, Felix , Gewald, Heiko , Helmut Krcmar, •

Traffic caused by drivers searching for a free parking space has numerous negative effects, such as increased emissions and noise pollution. Innovative solutions can reduce these negative effects by providing car drivers with better information via a smart parking app. However, smart parking apps currently do not offer overarching solutions which support the entire parking process. Utilizing a service-dominant logic perspective, we examine why such overarching solutions do not emerge, whereas specialized ecosystems flourish. We follow a multiple case study approach and conduct qualitative interviews with three app providers and fourteen associated parking operators in Germany. Our results show how conflicting institutional arrangements at the micro, meso, and macro context levels lead to specialization. Our study deepens the understanding of how conflicting institutional arrangements affect the emergence of service ecosystems, drawing practical recommendations to overcome specialized smart parking apps in favor of overarching solutions.

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First in first win: Evidence on schedule effects in round-robin tournaments in mega-events

2017-11 , Krumer, Alexander , Lechner, Michael

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Gender, Competitiveness and Physical Characteristics: Evidence from Professional Tennis

2016 , Krumer, Alexander , Rosenboim, Mosi , Shapir, Offer Moshe

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Behavioral Decision Making Factors- Are They Different for Professional Athletes?

2011-08-01 , Krumer, Alexander , Shavit, Tal , Rosenboim, Mosi

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Midweek Effect on Soccer Performance: Evidence from the German Bundesliga

2018-01 , Krumer, Alexander , Lechner, Michael

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Round-Robin Tournaments with a Dominant Player

2016-10 , Krumer, Alexander , Megidish, Reut , Sela, Aner

We analyze the subgame perfect equilibrium of the round‐robin tournament with one strong (dominant) and two weak players, and we compare this tournament and the one‐stage contest with respect to the players' expected payoffs, expected total effort, and their probabilities of winning. We find that if the contest designer's goal is to maximize the players' expected total effort, then – if the asymmetry between the players is relatively low – the one‐stage contest should be used. However, if the asymmetry is relatively high, then the round‐robin tournament should be used.

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The Order of Games in a Best-of-Three Contest

2015-06-01 , Krumer, Alexander

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On Winning Probabilities, Weight Categories and Home Advantage in Professional Judo

2017 , Krumer, Alexander

Judo is a combat sport with seven different weight categories. In this article, we examined data from 1,902 men’s and 1,400 women’s fights at the eight most prestigious judo tournaments during the period 2010-2013. Using a single fight as the unit of observation, we found that the probability for the favorite to win against the underdog in the men’s half-lightweight category is significantly lower than in most other categories. Moreover, in fights in which only European and/or Asian judokas participate, we found that the men’s half-lightweight category is significantly more balanced than all other men’s categories. For women, there is no consistent evidence that any one weight category is more balanced than any of the others. Our results indicate that in choosing the members of a national team, it is to some extent reasonable for national coaches to select a lower ranked judoka in the men’s half-lightweight category over a higher ranked judoka in several other weight categories. We also found that the home advantage increases the probability of winning a single fight for both genders. This result implies that it might be worthwhile for national judo associations to bid to host international tournaments in order to improve the world rankings of their domestic judokas.

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The First-Mover Advantage in Round-Robin Tournaments

2016 , Krumer, Alexander , Megidish, Reut , Sela, Aner

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Best-of-Two Contests with Psychological Effects

2013-07-01 , Krumer, Alexander

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