@article{1054, abstract = {{We explore how competition between physicians affects medical service provision. Previous research has shown that, without competition, physicians deviate from patient‐optimal treatment under payment systems like capitation and fee‐for‐service. Although competition might reduce these distortions, physicians usually interact with each other repeatedly over time and only a fraction of patients switches providers at all. Both patterns might prevent competition to work in the desired direction. To analyze the behavioral effects of competition, we develop a theoretical benchmark that is then tested in a controlled laboratory experiment. Experimental conditions vary physician payment and patient characteristics. Real patients benefit from provision decisions made in the experiment. Our results reveal that, in line with the theoretical prediction, introducing competition can reduce overprovision and underprovision, respectively. The observed effects depend on patient characteristics and the payment system, though. Tacit collusion is observed and particularly pronounced with fee‐for‐service payment, but it appears to be less frequent than in related experimental research on price competition. }}, author = {{Brosig-Koch, Janet and Hehenkamp, Burkhard and Kokot, Johanna}}, journal = {{Health Economics}}, number = {{53}}, pages = {{6--20}}, publisher = {{Wiley Online Library}}, title = {{{The effects of competition on medical service provision}}}, doi = {{10.1002/hec.3583}}, volume = {{26}}, year = {{2017}}, } @techreport{1055, author = {{Hehenkamp, Burkhard and Kaarboe, Oddvar}}, publisher = {{Universität Paderborn}}, title = {{{Location Choice and Quality Competition in Mixed Hospital Markets}}}, year = {{2017}}, } @techreport{1056, author = {{Gu, Yiguan and Hehenkamp, Burkhard and Leininger, Wolfgang}}, publisher = {{Universität Paderborn}}, title = {{{Evolutionary Equilibrium in Stochastic Contests - Entry, Effort, and Overdissipation}}}, year = {{2017}}, } @techreport{1057, author = {{Sürücü, Oktay and Mir Djawadi, Behnud and Brangewitz, Sonja}}, publisher = {{Universität Paderborn}}, title = {{{Asymmetric Dominance Effect with Multiple Decoys for Low- and High-Variance Lotteries}}}, year = {{2017}}, } @article{1062, author = {{Frick, Bernd and Gergaud, Olivier and Winter, Petra}}, journal = {{Gastronomy and Tourism}}, number = {{4}}, pages = {{259--271(13)}}, publisher = {{Cognizant Communication Corporation}}, title = {{{The revenue potential of product differentiation: Empirical evidence fro the Croation restaurant industry}}}, doi = {{10.3727/216929717X15046207899410}}, volume = {{2}}, year = {{2017}}, } @misc{1069, author = {{Petersen, Henning Cornelius}}, publisher = {{Universität Paderborn}}, title = {{{Zu den Wechselwirkungen von Wettbewerb und Innovation - Eine ökonomische Analyse}}}, year = {{2017}}, } @misc{1070, author = {{Turan, Alparslan}}, publisher = {{Universität Paderborn}}, title = {{{Zu den Anreizwirkungen der Kronzeugenregelung - Eine spieltheoretische Analyse}}}, year = {{2017}}, } @misc{1071, author = {{Iding, Jerome}}, publisher = {{Universität Paderborn}}, title = {{{Zu den Anreiz- und Wohlfahrtswirkungen der Kronzeugenregelung - Das Fallbeispiel des LKW-Kartells (1997-2011)}}}, year = {{2017}}, } @misc{1072, author = {{Lütkevedder, Dennis}}, publisher = {{Universität Paderborn}}, title = {{{Vertikale Wettbewerbsbeschränkung auf Hotelreservierungsportalen - eine ökonomische Analyse anhand der Bestpreisklausel von Booking}}}, year = {{2017}}, } @misc{1075, author = {{Laudage, Felix}}, publisher = {{Universität Paderborn}}, title = {{{Open Innovation - Eine ökonimische Perspektive}}}, year = {{2017}}, } @misc{1076, author = {{Goebel, Marion}}, publisher = {{Universität Paderborn}}, title = {{{Marktmacht in zweiseitigen Online-Märkten - Probleme der Bestimmung einer marktbeherrschenden Stellung am Beispiel von eBay}}}, year = {{2017}}, } @misc{1077, author = {{Wagemeyer, Marleen}}, publisher = {{Universität Paderborn}}, title = {{{Marktabgrenzung in der Internetökonomie - Ein Fallbeispiel zum Fusionsantrag von Immowelt und Immonet}}}, year = {{2017}}, } @misc{1078, author = {{Shabani, Albana}}, publisher = {{Universität Paderborn}}, title = {{{Die Fusion von AOL und Time Warner - Eine wettbewerbspolitische Analyse}}}, year = {{2017}}, } @inproceedings{10789, author = {{Trier, Matthias and Fung, Magdalene and Hansen, Abigail}}, booktitle = {{25th European Conference on Information Systems, {ECIS} 2017, Guimar{\~{a}}es, Portugal, June 5-10, 2017}}, pages = {{104}}, title = {{{Uncertainties as Barriers for Knowledge Sharing with Enterprise Social Media}}}, year = {{2017}}, } @misc{1079, author = {{Hamacher, Dustin Stefan}}, publisher = {{Universität Paderborn}}, title = {{{Das Zusammenschlussvorhaben von Edeka und Kaiser's Tengelmann - eine ökonomische Analyse}}}, year = {{2017}}, } @techreport{1083, abstract = {{In actual school choice applications the theoretical underpinnings of the Boston School Choice Mechanism (BM) (complete information and rationality of the agents) are often not given. We analyze the actual behavior of agents in such a matching mechanism, using data from the matching mechanism currently used in a clearinghouse at a faculty of Business Administration and Economics at a German university, where a variant of the BM is used, and supplement this data with data generated in a survey among students who participated in the clearinghouse. We find that under the current mechanism over 70% of students act strategically. Controlling for students' limited information, we find that they do act rationally in their decision to act strategically. While students thus seem to react to the incentives to act strategically under the BM, they do not seem to be able to use this to their own advantage. However, those students acting in line with their beliefs manage a significantly better personal outcome than those who do not. We also run simulations by using a variant of the deferred acceptance algorithm, adapted to our situation, to show that the use of a different algorithm may be to the students' advantage.}}, author = {{Hoyer, Britta and Stroh-Maraun, Nadja}}, publisher = {{CIE Working Paper Series, Paderborn University}}, title = {{{Matching Strategies of Heterogeneous Agents under Incomplete Information in a University Clearinghouse}}}, volume = {{110}}, year = {{2017}}, } @inproceedings{1094, abstract = {{Many university students struggle with motivational problems, and gamification has the potential to address these problems. However, gamification is hardly used in education, because current approaches to gamification require instructors to engage in the time-consuming preparation of their course contents for use in quizzes, mini-games and the like. Drawing on research on limited attention and present bias, we propose a "lean" approach to gamification, which relies on gamifying learning activities (rather than learning contents) and increasing their salience. In this paper, we present the app StudyNow that implements such a lean gamification approach. With this app, we aim to enable more students and instructors to benefit from the advantages of gamification.}}, author = {{Feldotto, Matthias and John, Thomas and Kundisch, Dennis and Hemsen, Paul and Klingsieck, Katrin and Skopalik, Alexander}}, booktitle = {{Proceedings of the 12th International Conference on Design Science Research in Information Systems and Technology (DESRIST)}}, pages = {{462--467}}, title = {{{Making Gamification Easy for the Professor: Decoupling Game and Content with the StudyNow Mobile App}}}, doi = {{10.1007/978-3-319-59144-5_32}}, year = {{2017}}, } @inproceedings{1095, abstract = {{Many university students struggle with motivational problems, and gamification has the potential to address these problems. However, using gamification currently is rather tedious and time-consuming for instructors because current approaches to gamification require instructors to engage in the time-consuming preparation of course contents (e.g., for quizzes or mini-games). In reply to this issue, we propose a “lean” approach to gamification, which relies on gamifying learning activities rather than learning contents. The learning activities that are gamified in the lean approach can typically be drawn from existing course syllabi (e.g., attend certain lectures, hand in assignments, read book chapters and articles). Hence, compared to existing approaches, lean gamification substantially lowers the time requirements posed on instructors for gamifying a given course. Drawing on research on limited attention and the present bias, we provide the theoretical foundation for the lean gamification approach. In addition, we present a mobile application that implements lean gamification and outline a mixed-methods study that is currently under way for evaluating whether lean gamification does indeed have the potential to increase students’ motivation. We thereby hope to allow more students and instructors to benefit from the advantages of gamification. }}, author = {{John, Thomas and Feldotto, Matthias and Hemsen, Paul and Klingsieck, Katrin and Kundisch, Dennis and Langendorf, Mike}}, booktitle = {{Proceedings of the 25th European Conference on Information Systems (ECIS)}}, pages = {{2970--2979}}, title = {{{Towards a Lean Approach for Gamifying Education}}}, year = {{2017}}, } @inproceedings{121, abstract = {{Research on ad copy design is well-studied in the context of offline marketing. However, researchers have only recently started to investigate ad copies in the context of paid search, and have not yet explored the potential of information cues to enhance customers’ search process. In this paper we analyze the impact of an information cue on user behavior in ad copies. Contrary to prevalent advice, results suggest that reducing the number of words in an ad is not always beneficial. Users act quite differently (and unexpectedly) in response to an information cue depending on their search phrases. In turn, practitioners could leverage the observed moderating effect of an information cue to enhance paid search success. Furthermore, having detected deviating user behavior in terms of clicks and conversions, we provide first indicative evidence of a self-selection mechanism at play when paid search users respond to differently phrased ad copies.}}, author = {{Schlangenotto, Darius and Kundisch, Dennis}}, booktitle = {{Proceedings of the 50th annual Hawaii International Conference on System Sciences (HICSS), Waikoloa Village, HI, USA}}, title = {{{Achieving more by saying less? On the Moderating Effect of Information Cues in Paid Search}}}, year = {{2017}}, } @inproceedings{122, abstract = {{Current research on paid search highlights its ability to enhance both online and offline conversions. Yet, research investigating the impact of placing paid search ads on less prominent positions on subsequent consumer behavior is limited to the online environment. This paper presents a field experiment using differences-in-differences analysis to investigate whether the targeting of a less prominent ad position can be beneficial for bricks-and-mortar retailers. Results indicate that paid search advertising budgets could be allocated more efficiently by targeting less prominent ad positions, thus allowing bricks-and-mortar retailers with a limited marketing budget to increase the reach of their marketing campaign, attract more consumers to their website and achieve an overall increase in conversions. Furthermore, the pay-per-click billing mechanism allows advertisers to increase their marketing reach at no additional cost. Consequently, bricks-and-mortar retailers should consider targeting less prominent ad positions to reduce advertising costs while simultaneously enhancing advertising benefits.}}, author = {{Schlangenotto, Darius and Kundisch, Dennis and Gutt, Dominik}}, booktitle = {{Proceedings of the 38th International Conference on Information Systems (ICIS), Seoul, South Korea}}, location = {{Seoul, South Korea}}, title = {{{Achieving More by Paying Less? How Bricks-and-Mortar Retailers Can Benefit by Bidding Less Aggressively in Paid Search}}}, year = {{2017}}, }