TY - JOUR AU - Flagmeier, Vanessa AU - Müller, Jens AU - Sureth-Sloane, Caren ID - 36065 IS - 1 JF - Accounting and Business Research KW - Accounting KW - Finance SN - 0001-4788 TI - When do firms highlight their effective tax rate? VL - 53 ER - TY - THES AU - Fiedler, Moritz ID - 37396 TI - Development of a Strategic Controlling Concept ER - TY - GEN AB - 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. AU - Ichev, Riste AU - Koren, Jernej AU - Kosi, Urska AU - Sitar Sustar, Katarina AU - Valentincic, Aljosa ID - 37136 KW - private firms KW - voluntary audit KW - cost of debt KW - self‐selection bias KW - risk TI - Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk ER - TY - GEN AU - Leimeister, Jan Marco AU - Stieglitz, Stefan AU - Matzner, Martin AU - Kundisch, Dennis AU - Flath, Christoph AU - Röglinger, Maximilian ID - 22219 TI - Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid VL - 63 (6) ER - TY - GEN AU - Heinze, Erik ID - 39351 TI - Kollusion durch Plattformen - der Einfluss von Tank-Apps auf den Preiswettbewerb von Tankstellen in Deutschland ER - TY - GEN AU - Rayhan, Shahi ID - 39358 TI - Big Data in Digital Markets - Challenges for Competition Policy to Protect Consumer Welfare ER - TY - GEN AU - Joshan, Saeid ID - 39356 TI - Network Development of Low-Cost Carriers at German Airports ER - TY - GEN AU - Ajredini, Zurkani ID - 39962 TI - Plattformgestaltungen auf digitalen Märkten - eine Analyse der Wohlfahrtseffekte ER - TY - GEN AU - Kanne, Niklas ID - 40465 TI - Marktmachtmissbrauch digitaler Plattformen - eine Analyse anhand der zehnten Novelle des GWB ER - TY - GEN AU - Klüppel, Pascal ID - 40466 TI - Marktmachtmissbrauch von Google – Eine wettbewerbspolitische Analyse ER - TY - GEN AU - Ortmann, Regina AU - Warkulat, Sonja AU - Krull, Sebastian AU - Klocke, Nina AU - Pelster, Matthias ID - 41197 TI - COVID-19 Reporting and Willingness to Pay for Leisure Activities VL - 83 ER - TY - GEN AU - Ortmann, Regina AU - Simons, Dirk AU - Voeller, Dennis ID - 41184 TI - Real effects of an international tax reform for MNEs VL - 64 ER - TY - GEN AU - Yigitbas , Osman ID - 40473 TI - Preisabsprachen in der Automobilindustrie - eine wettbewerbspolitische Analyse ER - TY - GEN AU - Schulte, Marcel ID - 40470 TI - Facebooks digitale Währung - eine wettbewerbspolitische Analyse ER - TY - CHAP AU - Meydani, Elnaz AU - Düsing, Christoph AU - Trier, Matthias ID - 35758 SN - 2195-4968 T2 - Lecture Notes in Information Systems and Organisation TI - Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism ER - TY - CONF AB - 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. AU - Müller, Oliver AU - Caron, Matthew AU - Döring, Michael AU - Heuwinkel, Tim AU - Baumeister, Jochen ID - 24547 KW - expected possession value KW - handball KW - tracking data KW - time series classification KW - deep learning T2 - 8th Workshop on Machine Learning and Data Mining for Sports Analytics (ECML PKDD 2021) TI - PIVOT: A Parsimonious End-to-End Learning Framework for Valuing Player Actions in Handball using Tracking Data ER - TY - CONF AB - 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. AU - Caron, Matthew AU - Gulenko, Maryna AU - Müller, Oliver ID - 25029 KW - Retail investors KW - GameStop KW - Social Networks KW - Reddit KW - WallStreetBets T2 - 42nd International Conference on Information Systems (ICIS 2021) TI - To the Moon! Analyzing the Community of “Degenerates” Engaged in the Surge of the GME Stock ER - TY - CONF AU - Meydani, Elnaz AU - Düsing, Christoph AU - Trier, Matthias ID - 44073 T2 - Innovation Through Information Systems: Volume II: A Collection of Latest Research on Technology Issues TI - Towards a Trust-Aware Item Recommendation System on a Graph Autoencoder with Attention Mechanism ER - TY - JOUR AU - Kaimann, Daniel AU - Tanneberg, Ilka AU - Cox, Joe ID - 21289 IS - 1 JF - Managerial and Decision Economics SN - 0143-6570 TI - “I will survive”: Online streaming and the chart survival of music tracks VL - 42 ER - TY - GEN AU - N., N. ID - 42317 TI - Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen ER - TY - GEN AU - N., N. ID - 42315 TI - Versionisierung von Serviceleistungen auf Videoplattformen ER - TY - GEN AU - N., N. ID - 42321 TI - Kindergarten Allocation through Matching Mechanisms ER - TY - GEN AU - N., N. ID - 42309 TI - Faire Profitverteilung in Energienetzwerken - eine spieltheoretische Analyse von Microgrids ER - TY - GEN AU - N., N. ID - 42311 TI - "First-Party-Content" auf zweiseitigen Märkten ER - TY - GEN AU - N., N. ID - 42314 TI - Stability in many-to-many matchings with contracts ER - TY - GEN AU - N., N. ID - 42313 TI - Preissetzungsstrategien für Neuprodukte ER - TY - GEN AU - N., N. ID - 42310 TI - Co-opetition in Two-Sided Markets ER - TY - GEN AU - N., N. ID - 42312 TI - Matching mit Minderheiten ER - TY - GEN AU - N., N. ID - 42316 TI - Piracy and Visioning ER - TY - GEN AU - N., N. ID - 42303 TI - Revenue Sharing Contracts: Horizontale Koordination in der E-Commerce-Logistik ER - TY - THES AU - Szopinski, Daniel ID - 24884 TI - Essays on Modeling Languages and Software Tools for Business Model Innovation: Theory and Empirical Evidence ER - TY - JOUR AB - I study a dynamic variant of the Dixit–Stiglitz (Am Econ Rev 67(3), 1977) model of monopolistic competition by introducing price stickiness à la Fershtman and Kamien (Econometrica 55(5), 1987). The analysis is restricted to bounded quantity and price paths that fulfill the necessary conditions for an open-loop Nash equilibrium. I show that there exists a symmetric steady state and that its stability depends on the degree of product differentiation. When moving from complements to perfect substitutes, the steady state is either a locally asymptotically unstable (spiral) source, a stable (spiral) sink or a saddle point. I further apply the Hopf bifurcation theorem and prove the existence of limit cycles, when passing from a stable to an unstable steady state. Lastly, I provide a numerical example and show that there exists a stable limit cycle. AU - Hoof, Simon ID - 45640 IS - 2 JF - Journal of Optimization Theory and Applications SN - 1573-2878 TI - Dynamic Monopolistic Competition VL - 189 ER - TY - JOUR AU - Dyck, Daniel ID - 46049 IS - 1 JF - Junior Management Science TI - Der Einfluss der Besteuerung auf Managementanreize und die Nutzung von Bonusbanken VL - 6 ER - TY - JOUR AU - Asenkerschbaumer, Stefan AU - Sureth-Sloane, Caren ID - 46051 IS - 1 JF - Schmalenbach IMPULSE TI - Editorial: Schmalenbach IMPULSE: Will etwas in Bewegung setzen VL - 1 ER - TY - JOUR AU - Daniel-Söltenfuß, Desiree AU - Schwabl, Franziska ID - 35952 IS - 3 JF - Zeitschrift für Berufs- und Wirtschaftspädagogik KW - Applied Mathematics KW - General Mathematics SN - 0172-2875 TI - Selbstreguliertes Lernen im berufsschulischen Übergangssystem VL - 117 ER - TY - JOUR AU - Schwabl, Franziska AU - Daniel-Söltenfuß, Desiree ID - 35962 JF - berufsbildung. Zeitschrift für Theorie-Praxis-Dialog TI - Selbstreguliertes Lernen fördern - Lernen auf Distanz ermöglichen VL - Heft 187 ER - TY - GEN AB - Individual cognitive functioning declines over time. We seek to understand how adverse physical health shocks in older ages contribute to this development. By use of event-study methods and data from the USA, England and several countries in Continental Europe we find evidence that health shocks lead to an immediate and persistent decline in cognitive functioning. This robust finding holds in all regions representing different health insurance systems and seems to be independent of underlying individual demographic characteristics such as sex and age. We also ask whether variables that are susceptible to policy action can reduce the negative consequences of a health shock. Our results suggest that neither compulsory education nor retirement regulations moderate the effects, thus emphasizing the importance of maintaining good physical health in old age for cognitive functioning. AU - Schiele, Valentin AU - Schmitz, Hendrik ID - 46540 KW - Cognitive decline KW - health shocks KW - retirement KW - education KW - event study TI - Understanding cognitive decline in older ages: The role of health shocks VL - 919 ER - TY - GEN AB - We study effects of retirement on cognitive abilities (up to ten years after retirement) using data from 21 countries in Continental Europe, England, and the US, and exploiting early-retirement thresholds for identification. For this purpose, combines event-study estimations with the marginal treatment effect framework to allow for effect heterogeneity. This helps to decompose event-study estimates into true medium-run effects of retirement and effects driven by differential retirement preferences. Our results suggest considerable negative effects of retirement on cognitive abilities. We also detect substantial effect heterogeneity: Those who retire as early as possible are not affected while those who retire later exhibit negative effects. AU - Schmitz, Hendrik AU - Westphal, Matthias ID - 46537 KW - Cognitive abilities KW - retirement KW - event study KW - marginal treatment effects TI - The dynamic and heterogeneous effects of retirement on cognitive decline VL - 918 ER - TY - CONF AU - Harrmann, L. AU - Böhm, Eva AU - Eggert, A. ID - 46670 T2 - 2021 AMA Winter Academic Conference TI - Exploring the paths towards service growth in manufacturing companies ER - TY - JOUR AB - AbstractThis study explains how manufacturers tackle the critical managerial challenge of transforming a product-focused sales force to undertake solution selling. Through an application of configurational theory, the authors explain how individual and organizational conditions combine to determine salespeople’s engagement in solution selling. Multilevel, multisource data from the sales organization of a global supplier of building solutions represent input from salespeople (N = 184), solution champions (N = 23), and sales managers (N = 26). A fuzzy set qualitative comparative analysis reveals no single, optimal way to overcome transformation challenges. Rather, consistent with prior research, solution selling requires certain types of salespeople, because value-based selling is a necessary condition for successful engagement. Beyond this foundational condition, a heterogeneous sales force can be engaged, as long as the organization provides appropriate support that is tailored to individual salespersons’ needs. The findings affirm that this viable support can come from either sales managers or solution champions. AU - Salonen, Anna AU - Terho, Harri AU - Böhm, Eva AU - Virtanen, Ari AU - Rajala, Risto ID - 41338 IS - 1 JF - Journal of the Academy of Marketing Science KW - Marketing KW - Economics and Econometrics KW - Business and International Management SN - 0092-0703 TI - Engaging a product-focused sales force in solution selling: interplay of individual- and organizational-level conditions VL - 49 ER - TY - JOUR AB - AbstractOnline reviews have profound impacts on firm success in terms of sales volume and how much customers are willing to pay, yet firms remain highly dependent on customers’ voluntary contributions. A popular way to increase the number of online reviews is to use product testing programs, which offer participants free products in exchange for writing reviews. Firms that employ this practice generally hope to increase review quality and secure higher product rating scores. However, a qualitative study, experimental study, and multilevel analysis of a field study dataset of more than 200,000 online reviews by product testers combine to reveal that product testing programs do not necessarily generate higher quality reviews, nor better product ratings. Only in certain circumstances (e.g., higher priced products) does offering a product testing program generate these benefits for the firm. Therefore, companies should consider carefully if and when they want to offer product testing programs. AU - Garnefeld, Ina AU - Krah, Tabea AU - Böhm, Eva AU - Gremler, Dwayne D. ID - 41337 IS - 4 JF - Journal of the Academy of Marketing Science KW - Marketing KW - Economics and Econometrics KW - Business and International Management SN - 0092-0703 TI - Online reviews generated through product testing: can more favorable reviews be enticed with free products? VL - 49 ER - TY - JOUR AU - Schaefers, Tobias AU - Ruffer, Stefan AU - Böhm, Eva ID - 46635 JF - Industrial Marketing Management KW - Marketing SN - 0019-8501 TI - Outcome-based contracting from the customers' perspective: A means-end chain analytical exploration VL - 93 ER - TY - JOUR AU - Krebs, Benjamin AU - Kabst, Rüdiger ID - 49097 JF - PERSONALquartely TI - Shared Leadership: Neue Studien für die Unternehmenspraxis VL - 4 ER - TY - CHAP AU - Wach, Bernhard AU - Krebs, Benjamin AU - Kabst, Rüdiger ED - Schwuchow, K. ED - Gutmann, J. ID - 24375 T2 - HR-Trends 2021 TI - HR-Manager als Intrapreneure ER - TY - CHAP AU - Öhlschläger, Claudia AU - Schneider, Martin ID - 42778 SN - 9783846766088 T2 - Komparatistik heute TI - Passivität als Widerstand gegen die Macht der Verhältnisse? Melvilles Bartleby, the scrivener aus literaturwissenschaftlicher und ökonomischer Perspektive ER - TY - GEN AB - Merging a sample of 492 merger and acquisition (M&A) announcements from 284 acquiring firms across Europe and North America with data from 5-year single-name credit default swaps (CDSs) written on stock-listed acquiring firms between 2005 and 2018, the paper at hand empirically analyzes the CDS investors’ risk perceptions of M&A announcements using event study methodologies. As a baseline result, we provide evidence for significantly positive cumulative average abnormal CDS spread changes for both, European and North American acquirers suggesting that CDS investors perceive an increase in the acquiring firms’ credit risk exposures due to M&A announcements. Our baseline finding holds under several robustness checks, especially when controlling for the robustness of the empirical design. Moreover, results from a large variety of sensitivity analyses reveal a number of deal and firm characteristics that may explain why CDS investors from our sample expect an increase in the acquirers’ credit risk exposures due to forthcoming M&A transactions. AU - Hippert, Benjamin AU - Uhde, André ID - 36060 KW - credit default swaps KW - risk perception of CDS investors KW - mergers and acquisitions KW - event study TI - CDS Investors’ Risk Perceptions of M&A Announcements ER - TY - GEN AB - This paper empirically investigates determinants of the outstanding net notional amount of credit default swaps (CDSs) contracts written on banks. We extend and complement the previous literature dealing with CDS trading by analyzing a comprehensive set of CDS tradingspecific, bank-fundamental, macroeconomic and bank-institutional determinants. We find that risk hedging clearly dominates an investor’s speculation and arbitrage motive, while the latter, however, exhibits the strongest impact on the outstanding net notional amount of bank CDSs. Furthermore, being classified as a G-SIB, being a constituent of the main CDS index and the equity trading volume may significantly explain changes in the outstanding CDS net notional on banks. The analysis at hand provides important implications for both academics and practitioners, since understanding the trading motives of bank CDS investors provides a deeper insight into the opaque CDS market. AU - Hippert, Benjamin AU - Uhde, André AU - Wengerek, Sascha Tobias ID - 36063 KW - banking KW - outstanding CDS net notional KW - determinants of bank CDS trading TI - Determinants of CDS Trading on Major Banks ER - TY - GEN AU - Fochmann, Martin AU - Heinemann-Heile, Vanessa AU - Huber, Hans-Peter AU - Maiterth, Ralf AU - Sureth-Sloane, Caren ID - 49277 TI - Tax Burden on German Companies – Income Tax Burden and Administrative Costs ER - TY - CHAP AU - Schneider, Jennifer Nicole ED - Beutner, Marc ED - Pechuel, Rasmus ED - Schneider, Jennifer ID - 47957 T2 - Fostering Digitisation and Industry 4.0: Education – Vocation - Industry – Future. New Opportunities and Challenges for European VET. Insights in the DigI-VET Project TI - Digital transformation in industry ER - TY - CHAP AU - Schneider, Jennifer ED - Beutner, Marc ED - Pechuel, Rasmus ED - Schneider, Jennifer ID - 47966 T2 - Fostering Digitisation and Industry 4.0: Education – Vocation - Industry – Future. New Opportunities and Challenges for European VET. Insights in the DigI-VET Project TI - Teaching and Learning Materials ER -