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

In the December 2002 issue of the American Economic Review, Mark Duggan and Steven D. Levitt published an article on corruption in professional sumo. In the present article, the authors update the study of Duggan and Levitt to take into account changes since January 2000. The authors find strong statistical evidence that corruption is reduced after January 2000 but reappears in the period from 2003 to 2006. In addition, they can show that the nonlinearity in the incentive structure disappears from 2000 to 2003 and reappears after 2003. These results confirm the findings of Duggan and Levitt, who suggest that the structure of promotion in rankings gives incentives to the sumo wrestlers to rig matches.

This paper presents a model of a professional sports league and analyzes the effect of luxury taxes on competitive balance, club profits, and social welfare. It shows that a luxury tax increases aggregate salary payments in the league and produces a more balanced league. Moreover, a higher tax rate increases the profits of large-market clubs, whereas the profits of small-market clubs only increase if the tax rate is not set inadequately high. Finally, we show that social welfare increases with a luxury tax.

This paper presents a dynamic model of talent investments in a team sports league with an infinite time horizon. We show that the clubs’ investment decisions and the effects of revenue sharing on competitive balance depend on the following three factors: (i) the cost function of talent investments, (ii) the clubs’ market sizes, and (iii) the initial endowments of talent stock. We analyze how these factors interact in the transition to the steady state as well as in the steady state itself.

Die Produktionsstandorte in Hochlohnländern sind stark unter Druck. Dabei bieten sie ein enormes Potenzial, von dem das gesamte globale Produktionsnetzwerk profitieren kann. Standorte in westlichen Ländern sind prädestiniert, die Rolle einer Lead Factory einzunehmen und somit die Wissens- und Denkzentrale für das globale Produktionsnetzwerk zu bilden. Die Autoren zeigen, welche Faktoren dafür sprechen, einen Produktionsstandort gezielt zu einer Leitfabrik auszubauen.

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Profitable and balanced domestic league sports are among the central prerequisites for attracting the right to host a mega-event like the soccer world cup as well as for the overall economic success of such events. This paper pro-vides a contest model of a professional team sports league and analyzes the impact of a restriction on foreign players. It shows that a league with binding restrictions on foreign talent for all clubs is more balanced than a league without binding restrictions on foreign talent. Moreover, the wage level of domestic (foreign) talent is higher (lower) in a league with a binding restriction on foreign players. Finally, a tighter restriction on foreign players increases profits of all clubs.

In this paper we discuss the regulatory risk associated with tendering regional public transport lines from the regulator’s and the operators’ perspective.

Wertschöpfungsnetzwerke leiden meist unter dem Dilemma, dass sie gleichzeitig effizient und innovativ sein müssen. Werden F&E- und Produktionsabteilungen organisatorisch aus diesem Grund getrennt, wird es schnell schwierig, diese Abteilungen zu koordinieren und den Wissenstransfer sicherzustellen. Leitfabriken können in bestimmten Konstellationen eine Vermittleroder Übersetzerrolle einnehmen und damit die Koordinationsprobleme lösen.