--- _id: '37396' author: - first_name: Moritz full_name: Fiedler, Moritz last_name: Fiedler citation: ama: Fiedler M. Development of a Strategic Controlling Concept. Dr. Kovac; 2021. apa: Fiedler, M. (2021). Development of a Strategic Controlling Concept. Dr. Kovac. bibtex: '@book{Fiedler_2021, place={Hamburg}, title={Development of a Strategic Controlling Concept}, publisher={Dr. Kovac}, author={Fiedler, Moritz}, year={2021} }' chicago: 'Fiedler, Moritz. Development of a Strategic Controlling Concept. Hamburg: Dr. Kovac, 2021.' ieee: 'M. Fiedler, Development of a Strategic Controlling Concept. Hamburg: Dr. Kovac, 2021.' mla: Fiedler, Moritz. Development of a Strategic Controlling Concept. Dr. Kovac, 2021. short: M. Fiedler, Development of a Strategic Controlling Concept, Dr. Kovac, Hamburg, 2021. date_created: 2023-01-18T13:16:31Z date_updated: 2023-01-18T13:16:33Z department: - _id: '193' language: - iso: eng place: Hamburg publisher: Dr. Kovac status: public supervisor: - first_name: Stefan full_name: Betz, Stefan last_name: Betz title: Development of a Strategic Controlling Concept type: dissertation user_id: '52061' year: '2021' ... --- _id: '37136' abstract: - lang: eng text: This study examines the relation between voluntary audit and the cost of debt in private firms. We use a sample of 4,058 small private firms operating in the period 2006‐2017 that are not subject to mandatory audits. Firms decide for a voluntary audit of financial statements either because the economic setting in which they operate effectively forces them to do so (e.g., ownership complexity, export‐oriented supply chain, subsidiary status) or because firm fundamentals and/or financial reporting practices limit their access to financial debt, both reflected in earnings quality. We use these factors to model the decision for voluntary audit. In the outcome analyses, we find robust evidence that voluntary audits are associated with higher, rather than lower, interest rate by up to 3.0 percentage points. This effect is present regardless of the perceived audit quality (Big‐4 vs. non‐Big‐4), but is stronger for non‐Big‐4 audits where auditees have a stronger position relative to auditors. Audited firms’ earnings are less informative about future operating performance relative to unaudited counterparts. We conclude that voluntary audits facilitate access to financial debt for firms with higher risk that may otherwise have no access to this form of financing. The price paid is reflected in higher interest rates charged to firms with voluntary audits – firms with higher information and/or fundamental risk. author: - first_name: Riste full_name: Ichev, Riste last_name: Ichev - first_name: Jernej full_name: Koren, Jernej last_name: Koren - first_name: Urska full_name: Kosi, Urska id: '54068' last_name: Kosi - first_name: Katarina full_name: Sitar Sustar, Katarina last_name: Sitar Sustar - first_name: Aljosa full_name: Valentincic, Aljosa last_name: Valentincic citation: ama: 'Ichev R, Koren J, Kosi U, Sitar Sustar K, Valentincic A. Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk.; 2021.' apa: 'Ichev, R., Koren, J., Kosi, U., Sitar Sustar, K., & Valentincic, A. (2021). Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk.' bibtex: '@book{Ichev_Koren_Kosi_Sitar Sustar_Valentincic_2021, title={Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk}, author={Ichev, Riste and Koren, Jernej and Kosi, Urska and Sitar Sustar, Katarina and Valentincic, Aljosa}, year={2021} }' chicago: 'Ichev, Riste, Jernej Koren, Urska Kosi, Katarina Sitar Sustar, and Aljosa Valentincic. Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk, 2021.' ieee: 'R. Ichev, J. Koren, U. Kosi, K. Sitar Sustar, and A. Valentincic, Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk. 2021.' mla: 'Ichev, Riste, et al. Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk. 2021.' short: 'R. Ichev, J. Koren, U. Kosi, K. Sitar Sustar, A. Valentincic, Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk, 2021.' date_created: 2023-01-17T15:03:08Z date_updated: 2023-01-18T13:40:40Z department: - _id: '635' - _id: '186' - _id: '551' keyword: - private firms - voluntary audit - cost of debt - self‐selection bias - risk language: - iso: eng main_file_link: - url: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3853927 status: public title: 'Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk' type: working_paper user_id: '88603' year: '2021' ... --- _id: '22219' author: - first_name: Jan Marco full_name: Leimeister, Jan Marco last_name: Leimeister - first_name: Stefan full_name: Stieglitz, Stefan last_name: Stieglitz - first_name: Martin full_name: Matzner, Martin last_name: Matzner - first_name: Dennis full_name: Kundisch, Dennis id: '21117' last_name: Kundisch - first_name: Christoph full_name: Flath, Christoph last_name: Flath - first_name: Maximilian full_name: Röglinger, Maximilian last_name: Röglinger citation: ama: Leimeister JM, Stieglitz S, Matzner M, Kundisch D, Flath C, Röglinger M. Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid. Vol 63 (6).; 2021:741-749. apa: 'Leimeister, J. M., Stieglitz, S., Matzner, M., Kundisch, D., Flath, C., & Röglinger, M. (2021). Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid: Vol. 63 (6) (pp. 741–749).' bibtex: '@book{Leimeister_Stieglitz_Matzner_Kundisch_Flath_Röglinger_2021, series={Business & Information Systems Engineering}, title={Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid}, volume={63 (6)}, author={Leimeister, Jan Marco and Stieglitz, Stefan and Matzner, Martin and Kundisch, Dennis and Flath, Christoph and Röglinger, Maximilian}, year={2021}, pages={741–749}, collection={Business & Information Systems Engineering} }' chicago: Leimeister, Jan Marco, Stefan Stieglitz, Martin Matzner, Dennis Kundisch, Christoph Flath, and Maximilian Röglinger. Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid. Vol. 63 (6). Business & Information Systems Engineering, 2021. ieee: J. M. Leimeister, S. Stieglitz, M. Matzner, D. Kundisch, C. Flath, and M. Röglinger, Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid, vol. 63 (6). 2021, pp. 741–749. mla: Leimeister, Jan Marco, et al. Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid. 2021, pp. 741–49. short: J.M. Leimeister, S. Stieglitz, M. Matzner, D. Kundisch, C. Flath, M. Röglinger, Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid, 2021. date_created: 2021-05-21T07:38:48Z date_updated: 2023-01-20T14:23:23Z department: - _id: '276' language: - iso: eng page: 741-749 publication_status: published series_title: Business & Information Systems Engineering status: public title: Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid type: working_paper user_id: '16205' volume: 63 (6) year: '2021' ... --- _id: '39351' author: - first_name: Erik full_name: Heinze, Erik last_name: Heinze citation: ama: Heinze E. Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland.; 2021. apa: Heinze, E. (2021). Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland. bibtex: '@book{Heinze_2021, title={Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland}, author={Heinze, Erik}, year={2021} }' chicago: Heinze, Erik. Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland, 2021. ieee: E. Heinze, Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland. 2021. mla: Heinze, Erik. Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland. 2021. short: E. Heinze, Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland, 2021. date_created: 2023-01-24T09:27:54Z date_updated: 2023-01-24T09:28:05Z department: - _id: '280' language: - iso: ger project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' status: public supervisor: - first_name: Britta full_name: Hoyer, Britta id: '42447' last_name: Hoyer title: Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland type: bachelorsthesis user_id: '37953' year: '2021' ... --- _id: '39358' author: - first_name: Shahi full_name: Rayhan, Shahi last_name: Rayhan citation: ama: Rayhan S. Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare.; 2021. apa: Rayhan, S. (2021). Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare. bibtex: '@book{Rayhan_2021, title={Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare}, author={Rayhan, Shahi}, year={2021} }' chicago: Rayhan, Shahi. Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare, 2021. ieee: S. Rayhan, Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare. 2021. mla: Rayhan, Shahi. Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare. 2021. short: S. Rayhan, Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare, 2021. date_created: 2023-01-24T09:35:43Z date_updated: 2023-01-24T09:35:46Z department: - _id: '280' language: - iso: eng project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' status: public supervisor: - first_name: Britta full_name: Hoyer, Britta id: '42447' last_name: Hoyer title: Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare type: mastersthesis user_id: '37953' year: '2021' ... --- _id: '39356' author: - first_name: Saeid full_name: Joshan, Saeid last_name: Joshan citation: ama: Joshan S. Network Development of Low-Cost Carriers at German Airports.; 2021. apa: Joshan, S. (2021). Network Development of Low-Cost Carriers at German Airports. bibtex: '@book{Joshan_2021, title={Network Development of Low-Cost Carriers at German Airports}, author={Joshan, Saeid}, year={2021} }' chicago: Joshan, Saeid. Network Development of Low-Cost Carriers at German Airports, 2021. ieee: S. Joshan, Network Development of Low-Cost Carriers at German Airports. 2021. mla: Joshan, Saeid. Network Development of Low-Cost Carriers at German Airports. 2021. short: S. Joshan, Network Development of Low-Cost Carriers at German Airports, 2021. date_created: 2023-01-24T09:34:20Z date_updated: 2023-01-24T09:34:26Z department: - _id: '280' language: - iso: eng project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' status: public supervisor: - first_name: Britta full_name: Hoyer, Britta id: '42447' last_name: Hoyer title: Network Development of Low-Cost Carriers at German Airports type: mastersthesis user_id: '37953' year: '2021' ... --- _id: '39962' author: - first_name: Zurkani full_name: Ajredini, Zurkani last_name: Ajredini citation: ama: Ajredini Z. Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte.; 2021. apa: Ajredini, Z. (2021). Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte. bibtex: '@book{Ajredini_2021, title={Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte}, author={Ajredini, Zurkani}, year={2021} }' chicago: Ajredini, Zurkani. Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte, 2021. ieee: Z. Ajredini, Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte. 2021. mla: Ajredini, Zurkani. Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte. 2021. short: Z. Ajredini, Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte, 2021. date_created: 2023-01-25T10:42:56Z date_updated: 2023-01-25T10:43:31Z department: - _id: '280' language: - iso: ger project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' status: public supervisor: - first_name: Burkhard full_name: Hehenkamp, Burkhard id: '37339' last_name: Hehenkamp title: Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte type: bachelorsthesis user_id: '37953' year: '2021' ... --- _id: '40465' author: - first_name: Niklas full_name: Kanne, Niklas last_name: Kanne citation: ama: Kanne N. Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB.; 2021. apa: Kanne, N. (2021). Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB. bibtex: '@book{Kanne_2021, title={Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB}, author={Kanne, Niklas}, year={2021} }' chicago: Kanne, Niklas. Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB, 2021. ieee: N. Kanne, Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB. 2021. mla: Kanne, Niklas. Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB. 2021. short: N. Kanne, Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB, 2021. date_created: 2023-01-27T07:18:40Z date_updated: 2023-01-27T07:18:49Z department: - _id: '280' language: - iso: ger project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' status: public supervisor: - first_name: Burkhard full_name: Hehenkamp, Burkhard id: '37339' last_name: Hehenkamp title: Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB type: bachelorsthesis user_id: '37953' year: '2021' ... --- _id: '40466' author: - first_name: Pascal full_name: Klüppel, Pascal last_name: Klüppel citation: ama: Klüppel P. Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse.; 2021. apa: Klüppel, P. (2021). Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse. bibtex: '@book{Klüppel_2021, title={Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse}, author={Klüppel, Pascal}, year={2021} }' chicago: Klüppel, Pascal. Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse, 2021. ieee: P. Klüppel, Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse. 2021. mla: Klüppel, Pascal. Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse. 2021. short: P. Klüppel, Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse, 2021. date_created: 2023-01-27T07:20:31Z date_updated: 2023-01-27T07:20:43Z department: - _id: '280' language: - iso: ger project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' status: public supervisor: - first_name: Burkhard full_name: Hehenkamp, Burkhard id: '37339' last_name: Hehenkamp title: Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse type: bachelorsthesis user_id: '37953' year: '2021' ... --- _id: '41197' author: - first_name: Regina full_name: Ortmann, Regina id: '10020' last_name: Ortmann - first_name: Sonja full_name: Warkulat, Sonja id: '67243' last_name: Warkulat - first_name: Sebastian full_name: Krull, Sebastian id: '84497' last_name: Krull - first_name: Nina full_name: Klocke, Nina id: '51025' last_name: Klocke - first_name: Matthias full_name: Pelster, Matthias id: '67265' last_name: Pelster orcid: ' https://orcid.org/0000-0001-5740-2420' citation: ama: Ortmann R, Warkulat S, Krull S, Klocke N, Pelster M. COVID-19 Reporting and Willingness to Pay for Leisure Activities. Vol 83.; 2021. apa: Ortmann, R., Warkulat, S., Krull, S., Klocke, N., & Pelster, M. (2021). COVID-19 Reporting and Willingness to Pay for Leisure Activities (Vol. 83). bibtex: '@book{Ortmann_Warkulat_Krull_Klocke_Pelster_2021, series={Working Paper in Covid Economics: Vetted and REal-Time Papers}, title={COVID-19 Reporting and Willingness to Pay for Leisure Activities}, volume={83}, author={Ortmann, Regina and Warkulat, Sonja and Krull, Sebastian and Klocke, Nina and Pelster, Matthias}, year={2021}, collection={Working Paper in Covid Economics: Vetted and REal-Time Papers} }' chicago: 'Ortmann, Regina, Sonja Warkulat, Sebastian Krull, Nina Klocke, and Matthias Pelster. COVID-19 Reporting and Willingness to Pay for Leisure Activities. Vol. 83. Working Paper in Covid Economics: Vetted and REal-Time Papers, 2021.' ieee: R. Ortmann, S. Warkulat, S. Krull, N. Klocke, and M. Pelster, COVID-19 Reporting and Willingness to Pay for Leisure Activities, vol. 83. 2021. mla: Ortmann, Regina, et al. COVID-19 Reporting and Willingness to Pay for Leisure Activities. 2021. short: R. Ortmann, S. Warkulat, S. Krull, N. Klocke, M. Pelster, COVID-19 Reporting and Willingness to Pay for Leisure Activities, 2021. date_created: 2023-01-31T13:05:49Z date_updated: 2023-01-31T13:05:56Z department: - _id: '590' intvolume: ' 83' language: - iso: eng series_title: 'Working Paper in Covid Economics: Vetted and REal-Time Papers' status: public title: COVID-19 Reporting and Willingness to Pay for Leisure Activities type: working_paper user_id: '21222' volume: 83 year: '2021' ... --- _id: '41184' author: - first_name: Regina full_name: Ortmann, Regina id: '10020' last_name: Ortmann - first_name: Dirk full_name: Simons, Dirk last_name: Simons - first_name: Dennis full_name: Voeller, Dennis last_name: Voeller citation: ama: Ortmann R, Simons D, Voeller D. Real Effects of an International Tax Reform for MNEs. Vol 64.; 2021. apa: Ortmann, R., Simons, D., & Voeller, D. (2021). Real effects of an international tax reform for MNEs (Vol. 64). bibtex: '@book{Ortmann_Simons_Voeller_2021, series={TRR 266 Working Paper Series}, title={Real effects of an international tax reform for MNEs}, volume={64}, author={Ortmann, Regina and Simons, Dirk and Voeller, Dennis}, year={2021}, collection={TRR 266 Working Paper Series} }' chicago: Ortmann, Regina, Dirk Simons, and Dennis Voeller. Real Effects of an International Tax Reform for MNEs. Vol. 64. TRR 266 Working Paper Series, 2021. ieee: R. Ortmann, D. Simons, and D. Voeller, Real effects of an international tax reform for MNEs, vol. 64. 2021. mla: Ortmann, Regina, et al. Real Effects of an International Tax Reform for MNEs. 2021. short: R. Ortmann, D. Simons, D. Voeller, Real Effects of an International Tax Reform for MNEs, 2021. date_created: 2023-01-31T12:41:01Z date_updated: 2023-01-31T13:44:56Z department: - _id: '590' intvolume: ' 64' language: - iso: eng series_title: TRR 266 Working Paper Series status: public title: Real effects of an international tax reform for MNEs type: working_paper user_id: '21222' volume: 64 year: '2021' ... --- _id: '40473' author: - first_name: Osman full_name: Yigitbas , Osman last_name: 'Yigitbas ' citation: ama: Yigitbas O. Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse.; 2021. apa: Yigitbas , O. (2021). Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse. bibtex: '@book{Yigitbas _2021, title={Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse}, author={Yigitbas , Osman}, year={2021} }' chicago: Yigitbas , Osman. Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse, 2021. ieee: O. Yigitbas , Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse. 2021. mla: Yigitbas , Osman. Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse. 2021. short: O. Yigitbas , Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse, 2021. date_created: 2023-01-27T08:22:18Z date_updated: 2023-01-27T08:22:24Z department: - _id: '280' language: - iso: ger project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' status: public supervisor: - first_name: Burkhard full_name: Hehenkamp, Burkhard id: '37339' last_name: Hehenkamp title: Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse type: bachelorsthesis user_id: '37953' year: '2021' ... --- _id: '40470' author: - first_name: Marcel full_name: Schulte, Marcel last_name: Schulte citation: ama: Schulte M. Facebooks digitale Währung - eine wettbewerbspolitische Analyse.; 2021. apa: Schulte, M. (2021). Facebooks digitale Währung - eine wettbewerbspolitische Analyse. bibtex: '@book{Schulte_2021, title={Facebooks digitale Währung - eine wettbewerbspolitische Analyse}, author={Schulte, Marcel}, year={2021} }' chicago: Schulte, Marcel. Facebooks digitale Währung - eine wettbewerbspolitische Analyse, 2021. ieee: M. Schulte, Facebooks digitale Währung - eine wettbewerbspolitische Analyse. 2021. mla: Schulte, Marcel. Facebooks digitale Währung - eine wettbewerbspolitische Analyse. 2021. short: M. Schulte, Facebooks digitale Währung - eine wettbewerbspolitische Analyse, 2021. date_created: 2023-01-27T08:15:55Z date_updated: 2023-01-27T08:15:59Z department: - _id: '280' language: - iso: ger project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' status: public supervisor: - first_name: Burkhard full_name: Hehenkamp, Burkhard id: '37339' last_name: Hehenkamp title: Facebooks digitale Währung - eine wettbewerbspolitische Analyse type: bachelorsthesis user_id: '37953' year: '2021' ... --- _id: '35758' author: - first_name: Elnaz full_name: Meydani, Elnaz last_name: Meydani - first_name: Christoph full_name: Düsing, Christoph last_name: Düsing - first_name: Matthias full_name: Trier, Matthias id: '72744' last_name: Trier citation: ama: 'Meydani E, Düsing C, Trier M. Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism. In: Lecture Notes in Information Systems and Organisation. Springer International Publishing; 2021. doi:10.1007/978-3-030-86797-3_5' apa: Meydani, E., Düsing, C., & Trier, M. (2021). Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism. In Lecture Notes in Information Systems and Organisation. Springer International Publishing. https://doi.org/10.1007/978-3-030-86797-3_5 bibtex: '@inbook{Meydani_Düsing_Trier_2021, place={Cham}, title={Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism}, DOI={10.1007/978-3-030-86797-3_5}, booktitle={Lecture Notes in Information Systems and Organisation}, publisher={Springer International Publishing}, author={Meydani, Elnaz and Düsing, Christoph and Trier, Matthias}, year={2021} }' chicago: 'Meydani, Elnaz, Christoph Düsing, and Matthias Trier. “Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism.” In Lecture Notes in Information Systems and Organisation. Cham: Springer International Publishing, 2021. https://doi.org/10.1007/978-3-030-86797-3_5.' ieee: 'E. Meydani, C. Düsing, and M. Trier, “Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism,” in Lecture Notes in Information Systems and Organisation, Cham: Springer International Publishing, 2021.' mla: Meydani, Elnaz, et al. “Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism.” Lecture Notes in Information Systems and Organisation, Springer International Publishing, 2021, doi:10.1007/978-3-030-86797-3_5. short: 'E. Meydani, C. Düsing, M. Trier, in: Lecture Notes in Information Systems and Organisation, Springer International Publishing, Cham, 2021.' date_created: 2023-01-10T10:27:20Z date_updated: 2023-01-29T23:19:40Z department: - _id: '198' doi: 10.1007/978-3-030-86797-3_5 language: - iso: eng place: Cham publication: Lecture Notes in Information Systems and Organisation publication_identifier: isbn: - '9783030867966' - '9783030867973' issn: - 2195-4968 - 2195-4976 publication_status: published publisher: Springer International Publishing status: public title: Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism type: book_chapter user_id: '14931' year: '2021' ... --- _id: '24547' abstract: - lang: eng text: 'Over the last years, several approaches for the data-driven estimation of expected possession value (EPV) in basketball and association football (soccer) have been proposed. In this paper, we develop and evaluate PIVOT: the first such framework for team handball. Accounting for the fast-paced, dynamic nature and relative data scarcity of hand- ball, we propose a parsimonious end-to-end deep learning architecture that relies solely on tracking data. This efficient approach is capable of predicting the probability that a team will score within the near future given the fine-grained spatio-temporal distribution of all players and the ball over the last seconds of the game. Our experiments indicate that PIVOT is able to produce accurate and calibrated probability estimates, even when trained on a relatively small dataset. We also showcase two interactive applications of PIVOT for valuing actual and counterfactual player decisions and actions in real-time.' author: - first_name: Oliver full_name: Müller, Oliver id: '72849' last_name: Müller - first_name: Matthew full_name: Caron, Matthew id: '60721' last_name: Caron - first_name: Michael full_name: Döring, Michael last_name: Döring - first_name: Tim full_name: Heuwinkel, Tim last_name: Heuwinkel - first_name: Jochen full_name: Baumeister, Jochen id: '46' last_name: Baumeister orcid: 0000-0003-2683-5826 citation: ama: 'Müller O, Caron M, Döring M, Heuwinkel T, Baumeister J. PIVOT: A Parsimonious End-to-End Learning Framework for Valuing Player Actions in Handball using Tracking Data. In: 8th Workshop on Machine Learning and Data Mining for Sports Analytics (ECML PKDD 2021).' apa: 'Müller, O., Caron, M., Döring, M., Heuwinkel, T., & Baumeister, J. (n.d.). PIVOT: A Parsimonious End-to-End Learning Framework for Valuing Player Actions in Handball using Tracking Data. 8th Workshop on Machine Learning and Data Mining for Sports Analytics (ECML PKDD 2021). European Conference on Machine Learning and Principles and Practice of Knowledge Discovery (ECML PKDD 2021), Online.' bibtex: '@inproceedings{Müller_Caron_Döring_Heuwinkel_Baumeister, title={PIVOT: A Parsimonious End-to-End Learning Framework for Valuing Player Actions in Handball using Tracking Data}, booktitle={8th Workshop on Machine Learning and Data Mining for Sports Analytics (ECML PKDD 2021)}, author={Müller, Oliver and Caron, Matthew and Döring, Michael and Heuwinkel, Tim and Baumeister, Jochen} }' chicago: 'Müller, Oliver, Matthew Caron, Michael Döring, Tim Heuwinkel, and Jochen Baumeister. “PIVOT: A Parsimonious End-to-End Learning Framework for Valuing Player Actions in Handball Using Tracking Data.” In 8th Workshop on Machine Learning and Data Mining for Sports Analytics (ECML PKDD 2021), n.d.' ieee: 'O. Müller, M. Caron, M. Döring, T. Heuwinkel, and J. Baumeister, “PIVOT: A Parsimonious End-to-End Learning Framework for Valuing Player Actions in Handball using Tracking Data,” presented at the European Conference on Machine Learning and Principles and Practice of Knowledge Discovery (ECML PKDD 2021), Online.' mla: 'Müller, Oliver, et al. “PIVOT: A Parsimonious End-to-End Learning Framework for Valuing Player Actions in Handball Using Tracking Data.” 8th Workshop on Machine Learning and Data Mining for Sports Analytics (ECML PKDD 2021).' short: 'O. Müller, M. Caron, M. Döring, T. Heuwinkel, J. Baumeister, in: 8th Workshop on Machine Learning and Data Mining for Sports Analytics (ECML PKDD 2021), n.d.' conference: end_date: 2021-09-17 location: Online name: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery (ECML PKDD 2021) start_date: 2021-09-13 date_created: 2021-09-16T08:33:04Z date_updated: 2023-02-28T08:58:24Z department: - _id: '196' - _id: '172' keyword: - expected possession value - handball - tracking data - time series classification - deep learning language: - iso: eng main_file_link: - url: https://dtai.cs.kuleuven.be/events/MLSA21/papers/MLSA21_paper_muller.pdf publication: 8th Workshop on Machine Learning and Data Mining for Sports Analytics (ECML PKDD 2021) publication_status: inpress status: public title: 'PIVOT: A Parsimonious End-to-End Learning Framework for Valuing Player Actions in Handball using Tracking Data' type: conference user_id: '60721' year: '2021' ... --- _id: '25029' abstract: - lang: eng text: In early 2021, the finance world was taken by storm by the dramatic price surge of the GameStop Corp. stock. This rise is being, at least in part, attributed to a group of Redditors belonging to the now-famous r/wallstreetbets (WSB) subreddit group. In this work, we set out to address if user activity on the WSB subreddit is associated with the trading volume of the GME stock. Leveraging a unique dataset containing more than 4.9 million WSB posts and comments, we assert that user activity is associated with the trading volume of the GameStop stock. We further show that posts have a significantly higher predictive power than comments and are especially helpful for predicting unusually high trading volume. Lastly, as recent events have shown, we believe that these findings have implications for retail and institutional investors, trading platforms, and policymakers, as these can have disruptive potential. author: - first_name: Matthew full_name: Caron, Matthew id: '60721' last_name: Caron - first_name: Maryna full_name: Gulenko, Maryna id: '64226' last_name: Gulenko - first_name: Oliver full_name: Müller, Oliver id: '72849' last_name: Müller citation: ama: 'Caron M, Gulenko M, Müller O. To the Moon! Analyzing the Community of “Degenerates” Engaged in the Surge of the GME Stock. In: 42nd International Conference on Information Systems (ICIS 2021). ; 2021.' apa: Caron, M., Gulenko, M., & Müller, O. (2021). To the Moon! Analyzing the Community of “Degenerates” Engaged in the Surge of the GME Stock. 42nd International Conference on Information Systems (ICIS 2021). 42nd International Conference on Information Systems (ICIS 2021), Austin, Texas. bibtex: '@inproceedings{Caron_Gulenko_Müller_2021, title={To the Moon! Analyzing the Community of “Degenerates” Engaged in the Surge of the GME Stock}, booktitle={42nd International Conference on Information Systems (ICIS 2021)}, author={Caron, Matthew and Gulenko, Maryna and Müller, Oliver}, year={2021} }' chicago: Caron, Matthew, Maryna Gulenko, and Oliver Müller. “To the Moon! Analyzing the Community of ‘Degenerates’ Engaged in the Surge of the GME Stock.” In 42nd International Conference on Information Systems (ICIS 2021), 2021. ieee: M. Caron, M. Gulenko, and O. Müller, “To the Moon! Analyzing the Community of ‘Degenerates’ Engaged in the Surge of the GME Stock,” presented at the 42nd International Conference on Information Systems (ICIS 2021), Austin, Texas, 2021. mla: Caron, Matthew, et al. “To the Moon! Analyzing the Community of ‘Degenerates’ Engaged in the Surge of the GME Stock.” 42nd International Conference on Information Systems (ICIS 2021), 2021. short: 'M. Caron, M. Gulenko, O. Müller, in: 42nd International Conference on Information Systems (ICIS 2021), 2021.' conference: end_date: 2021-12-15 location: Austin, Texas name: 42nd International Conference on Information Systems (ICIS 2021) start_date: 2021-12-12 date_created: 2021-09-24T09:51:35Z date_updated: 2023-02-28T08:58:16Z department: - _id: '196' keyword: - Retail investors - GameStop - Social Networks - Reddit - WallStreetBets language: - iso: eng main_file_link: - url: https://aisel.aisnet.org/icis2021/social_media/social_media/13/ publication: 42nd International Conference on Information Systems (ICIS 2021) publication_status: published status: public title: To the Moon! Analyzing the Community of “Degenerates” Engaged in the Surge of the GME Stock type: conference user_id: '60721' year: '2021' ... --- _id: '44073' author: - first_name: Elnaz full_name: Meydani, Elnaz id: '78567' last_name: Meydani - first_name: Christoph full_name: Düsing, Christoph last_name: Düsing - first_name: Matthias full_name: Trier, Matthias id: '72744' last_name: Trier citation: ama: 'Meydani E, Düsing C, Trier M. Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism. In: Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues. ; 2021:72–77.' apa: 'Meydani, E., Düsing, C., & Trier, M. (2021). Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism. Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues, 72–77.' bibtex: '@inproceedings{Meydani_Düsing_Trier_2021, title={Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism}, booktitle={Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues}, author={Meydani, Elnaz and Düsing, Christoph and Trier, Matthias}, year={2021}, pages={72–77} }' chicago: 'Meydani, Elnaz, Christoph Düsing, and Matthias Trier. “Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism.” In Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues, 72–77, 2021.' ieee: 'E. Meydani, C. Düsing, and M. Trier, “Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism,” in Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues, 2021, pp. 72–77.' mla: 'Meydani, Elnaz, et al. “Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism.” Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues, 2021, pp. 72–77.' short: 'E. Meydani, C. Düsing, M. Trier, in: Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues, 2021, pp. 72–77.' date_created: 2023-04-20T08:50:47Z date_updated: 2023-04-20T10:16:57Z department: - _id: '198' language: - iso: eng page: 72–77 publication: 'Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues' status: public title: Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism type: conference user_id: '78567' year: '2021' ... --- _id: '21289' author: - first_name: Daniel full_name: Kaimann, Daniel id: '18949' last_name: Kaimann - first_name: Ilka full_name: Tanneberg, Ilka last_name: Tanneberg - first_name: Joe full_name: Cox, Joe last_name: Cox citation: ama: 'Kaimann D, Tanneberg I, Cox J. “I will survive”: Online streaming and the chart survival of music tracks. Managerial and Decision Economics. 2021;42(1):3-20. doi:10.1002/mde.3226' apa: 'Kaimann, D., Tanneberg, I., & Cox, J. (2021). “I will survive”: Online streaming and the chart survival of music tracks. Managerial and Decision Economics, 42(1), 3–20. https://doi.org/10.1002/mde.3226' bibtex: '@article{Kaimann_Tanneberg_Cox_2021, title={“I will survive”: Online streaming and the chart survival of music tracks}, volume={42}, DOI={10.1002/mde.3226}, number={1}, journal={Managerial and Decision Economics}, author={Kaimann, Daniel and Tanneberg, Ilka and Cox, Joe}, year={2021}, pages={3–20} }' chicago: 'Kaimann, Daniel, Ilka Tanneberg, and Joe Cox. “‘I Will Survive’: Online Streaming and the Chart Survival of Music Tracks.” Managerial and Decision Economics 42, no. 1 (2021): 3–20. https://doi.org/10.1002/mde.3226.' ieee: 'D. Kaimann, I. Tanneberg, and J. Cox, “‘I will survive’: Online streaming and the chart survival of music tracks,” Managerial and Decision Economics, vol. 42, no. 1, pp. 3–20, 2021, doi: 10.1002/mde.3226.' mla: 'Kaimann, Daniel, et al. “‘I Will Survive’: Online Streaming and the Chart Survival of Music Tracks.” Managerial and Decision Economics, vol. 42, no. 1, 2021, pp. 3–20, doi:10.1002/mde.3226.' short: D. Kaimann, I. Tanneberg, J. Cox, Managerial and Decision Economics 42 (2021) 3–20. date_created: 2021-02-26T13:21:40Z date_updated: 2023-05-16T15:38:01Z department: - _id: '183' doi: 10.1002/mde.3226 intvolume: ' 42' issue: '1' language: - iso: eng page: 3-20 project: - _id: '1' name: SFB 901 - _id: '2' name: SFB 901 - Project Area A - _id: '8' name: SFB 901 - Subproject A4 publication: Managerial and Decision Economics publication_identifier: issn: - 0143-6570 - 1099-1468 publication_status: published status: public title: '“I will survive”: Online streaming and the chart survival of music tracks' type: journal_article user_id: '18949' volume: 42 year: '2021' ... --- _id: '42317' author: - first_name: N. full_name: N., N. last_name: N. citation: ama: N. N. Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen. Universität Paderborn; 2021. apa: N., N. (2021). Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen. Universität Paderborn. bibtex: '@book{N._2021, title={Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen}, publisher={Universität Paderborn}, author={N., N.}, year={2021} }' chicago: N., N. Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen. Universität Paderborn, 2021. ieee: N. N., Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen. Universität Paderborn, 2021. mla: N., N. Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen. Universität Paderborn, 2021. short: N. N., Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen, Universität Paderborn, 2021. date_created: 2023-02-22T11:31:25Z date_updated: 2023-05-23T12:43:54Z department: - _id: '204' - _id: '205' - _id: '475' - _id: '200' language: - iso: ger project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' publisher: Universität Paderborn status: public supervisor: - first_name: Claus-Jochen full_name: Haake, Claus-Jochen id: '20801' last_name: Haake title: Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen type: bachelorsthesis user_id: '477' year: '2021' ... --- _id: '42315' author: - first_name: N. full_name: N., N. last_name: N. citation: ama: N. N. Versionisierung von Serviceleistungen auf Videoplattformen. Universität Paderborn; 2021. apa: N., N. (2021). Versionisierung von Serviceleistungen auf Videoplattformen. Universität Paderborn. bibtex: '@book{N._2021, title={Versionisierung von Serviceleistungen auf Videoplattformen}, publisher={Universität Paderborn}, author={N., N.}, year={2021} }' chicago: N., N. Versionisierung von Serviceleistungen auf Videoplattformen. Universität Paderborn, 2021. ieee: N. N., Versionisierung von Serviceleistungen auf Videoplattformen. Universität Paderborn, 2021. mla: N., N. Versionisierung von Serviceleistungen auf Videoplattformen. Universität Paderborn, 2021. short: N. N., Versionisierung von Serviceleistungen auf Videoplattformen, Universität Paderborn, 2021. date_created: 2023-02-22T11:28:25Z date_updated: 2023-05-23T12:44:01Z department: - _id: '204' - _id: '205' - _id: '475' - _id: '200' language: - iso: ger project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' publisher: Universität Paderborn status: public supervisor: - first_name: Claus-Jochen full_name: Haake, Claus-Jochen id: '20801' last_name: Haake title: Versionisierung von Serviceleistungen auf Videoplattformen type: bachelorsthesis user_id: '477' year: '2021' ...