E-Finance Lab Team

2010

Hinz, O; Eckert, J

The Impact of Search and Recommendation Systems on Sales in Electronic Commerce

In: Business & Information Systems Engineering; forthcoming

Category: Publications in scientific journals

Reference No.: 2010-21

Hinz, O; Eckert, J

Der Einfluss von Such- und Empfehlungssystemen auf den Absatz im Electronic Commerce

In: Wirtschaftsinformatik; forthcoming

Category: Publications in scientific journals

Reference No.: 2010-20

2009

Berger, S; Chlistalla, M; Hinz, O

Collaboration Structures in Financial Markets - A Social Network Analysis of IPO Syndicates

In: Berger, S.C. (Ed.) Strukturwandel der Wertschöpfung im Bankgeschäft, Innovative Betriebswirtschaftliche Forschung und Praxis, Vol. 248, pp. 123-134; Hamburg

Category: Chapter in book

Reference No.: 2009-1580

Lilienthal, M; Hinz, O

Pricing the Grid: Bepreisung des Grids

In: Grid Computing in der Finanzindustrie, Hrsg. Hinz et al.; Books on Demand, Norderstedt

Category: Chapter in book

Reference No.: 2009-1531

Lilienthal, M; Hinz, O

Pricing the Grid: Bepreisung des Grids

In: Grid Computing in der Finanzindustrie, Books on Demand; Norderstedt

Category: Chapter in book

Reference No.: 2009-1431

Hinz, O; Schwind, M; Beck, R

Robustheit und Kostenersparnis für IT-basierte Finanzapplikationen in Zeiten der Krise

In: Grid Computing in der Finanzindustrie; BoD, Norderstedt

Category: Chapter in book

Reference No.: 2009-1326

Eckert, J; Hinz, O; Skiera, B

Stichwort: Long Tail

In: Die Betriebswirtschaft, forthcoming

Category: Publications in scientific journals

Reference No.: 2009-1256

Hinz, O; Beck, R; Skiera, B; König, W

Grid Computing in der Finanzindustrie

In: Books on Demand; Norderstedt

Category: Buch (Hrsg.)

Abstract

Der verstärkte Wettbewerbs- und Kostendruck im Bankensektor erhöht den Restrukturierungs- und Automatisierungsbedarf IT-basierter Geschäftsprozesse im Banken- und Finanzdienstleistungssektor. Eine Möglichkeit, in diesem dynamischen Markt wettbewerbsfähig zu bleiben, ist der Aufbau eines kollaborativen IT-Systems, welches einerseits ermöglicht Geschäftsprozesse „on the fly“ je nach Bedarf an die neuen Anforderungen und Bedingungen anzupassen, und andererseits dabei hilft vorhandene IT-Ressourcen effizienter auszunutzen. Auf Grid Computing basierende Systeme stellen eine Lösung dar, die Wettbewerbsfähigkeit durch eine service-orientierte und kosteneffiziente Infrastruktur zu sichern. "Grid Computing in der Finanzindustrie" ist ein Herausgeberband des E-Finance Lab der Goethe-Universität Frankfurt und soll dem Leser Grid Computing und dessen Einsatzmöglichkeiten näherbringen. Es setzt sich aus sieben Artikeln zusammen. Zuerst werden dem Leser die Technologie „Grid Computing“ und deren Einsatzmöglichkeiten erklärt. Im Anschluss werden zum einen die aktuelle Verbreitung und die Gründe, die für eine Nutzung dieser Technologie sprechen, und zum anderen die Hürden und Hindernisse beim Einsatz von Grid Computing auf Basis einer aktuellen empirischen Studie gemessen und identifiziert. Die folgenden Artikel geben Lösungsmöglichkeiten zu ausgewählten Hindernissen bei der Nutzung von Grid Computing und untermauern anhand von Fallstudien die wirtschaftlichen Vorteile dieser Technologie.

Reference No.: 2009-1254

Wolf, M; Vykoukal, J; Beck, R; Hinz, O

Grid-basierte Renditeberechnung von Vermögenspositionen

Category: Working papers [Protected Download] Password protected due to future submission, please contact the author

Password protected due to future submission, please contact the author

Reference No.: 2009-923

2008

Hinz, O; Schwind, M; Beck, R

Grid Computing in Extreme Situations: Reducing Costs and Creating Resilience for IT Infrastructures

In: Proceedings of the 12th Pacific Asia Conference on Information Systems (PACIS 2008); Suzhou, China

Category: Proceedings

Reference No.: 2008-1011

Hinz, O; Frischmann, T

ShopBots and Information Quality - Retailers' Strategies for Price Concealment

In: "European Conference on Information Systems (ECIS) 2008", Galway, Ireland

Category: Proceedings [Find it]

Reference No.: 2008-505

Berger, S; Hinz, O

The Impact of Social Networks on Inter-organizational Effectiveness - the Case of IPO Deal Networks

In: "European Conference on Information Systems (ECIS) 2008", Galway, Ireland

Category: Proceedings [Find it]

Reference No.: 2008-504

Beck, R; Schwind, M; Hinz, O

Grid Economics in Departmentalized Enterprises

In: Journal of Grid Computing, 6(3), pp. 277-290; Springer, Dordrecht, The Netherlands

Category: Publications in journals [Protected Download] Password protected due to former publication, please contact the author

Password protected due to former publication, please contact the author

Abstract

The application of Grid technology is finally spreading from engineering and natural science-related industrial sectors to other industries with high demand for computing applications. The financial services industry is one of these sectors, however, the diffusion of Grid technology within this sector is often hindered by a lack of incentives to share the computational resources. A promising way to overcome these barriers is the introduction of a pricing mechanism for the use of Grid-based resources. This work introduces a possible application of such a pricing approach and provides some simulation scenarios to illustrate how effective such an economized Grid solution can be. The simulation results indicate that pooling of IT resources can produce a reduction of 33% in cost compared to individual and dedicated servers. However, with a price-based allocation of computing resources, a further 10% of cost reduction can be achieved by introducing an auction mechanism. Therefore we claim that there is huge cost reduction potential in the financial services industry beyond the savings that can be achieved by a utility-based allocation of computing resources, if economically inspired allocation methods are combined with advanced refining and learning methods in the allocation process.

Reference No.: 2008-765

2007

Hinz, O; Skiera, B

Modellierung des Gebotsverhaltens im Reverse Pricing

In: Die Kunst des Modellierens. Mathematisch-ökonomische Modelle (Hrsg. Luderer, Bernd); Wiesbaden : Teubner

Category: Chapter in book

Reference No.: 2007-935

Schwind, M; Hinz, O; Stockheim, T; Bernhardt, M

Standardizing Interactive Pricing for Electronic Business

In: Electronic Markets, Vol. 18, No. 2.

Category: Publications in scientific journals

Abstract

Interactive pricing, the subset of dynamic pricing where buyers and sellers enter a computer mediated price-negotiation process, has stimulated academic interest ever since the introduction of Internet-related B2C and B2B applications. However, this has not yet led to the widespread use of standardized interactive pricing mechanisms within industrial applications. A recent study suggests that applicants expect the integration of interactive pricing mechanisms into existing IT infrastructure to be very costly due to high customization efforts. The standardization of interactive pricing should thus be a first step towards enabling a wider use of these mechanisms. Building on the classification of the range of dynamic pricing methods, we analyze existing business standards that should be capable of describing interactive pricing mechanisms. Our analysis reveals the shortcomings of recent business standards which therefore require the development of an enhanced model for interactive pricing applications. Addressing this issue we propose a model that integrates a price communication language with a process description format for the customization of interactive pricing mechanisms. The paper concludes with three case studies illustrating the use of our model.

Reference No.: 2007-891

Hinz, O; Gerstmeier, E; Tafreshi, O; Enzmann, M; Schneider, M

Customer Loyalty Programs and Privacy Concerns

In: 20th Bled eConference, Merging and Emerging Technologies, Processes and Institutions; Bled, Slovenia

Category: Proceedings

Reference No.: 2007-871

Hinz, O; Setzer, M; Vykoukal, J; Beck, R

Portfolio Performance Measurement based on Service-Oriented Grid Computing

In: 3rd International Workshop on Enterprise Applications and Services in the Finance Industry (FinanceCom 2007); Montreal, Canada

Category: Proceedings

Abstract

One might think that the success of a financial investment can be measured easily as performance, defined as the return-on-investment between two points in time. However, the accurate calculation can be complex and compute-intensive, e.g., for a single customer but especially for the entire customer base of large institutions like banks. In order to meet these computational demands, grid computing presents a secure, reliable and scalable technology to provide shared access to heterogeneous resources. This research-in-progress paper introduces a service-oriented architecture for portfolio performance measurement that is based on a grid layer. It first emphasizes the importance of performance measurement as success measure and steering tool before the calculation is presented in detail. Since the consolidation of required data is very compute-intensive, different calculation methods are encapsulated. Finally, a service-oriented grid architecture for performance measurement is presented and evaluated using criteria from system engineering and design science.

Reference No.: 2007-848

Beck, R; Setzer, M; Vykoukal, J; Hinz, O; Schwind, M

Pricing Optimization of Grid-based Financial Services

In: 7th International Conference on Optimization: Techniques and Applications (ICOTA7); Kobe, Japan

Category: Proceedings

Abstract

The financial service industry is one among other industries that request increasingly the use of Grid technology for their intensive computing demand. An achievable way to accelerate the sharing of Grid resources within this sector is the establishment of a pricing mechanism. To strengthen this theory, a simulation with different pricing scenarios has been set up with the indication that price-based allocation of Grid-resources combined with an auction mechanism can lead to a cost reduction of more than 40%. This result shows that there is a huge cost reduction potential in the financial services industry.

Reference No.: 2007-799

Spann, M; Hinz, O

The Impact of Social Network Structure on Name-Your-Own-Price Markets

In: Marketing Science Conference 2007; Singapore

Category: Proceedings

Abstract

The interactive nature of the Internet promotes collaborative business models (e.g. auctions) and facilitates information sharing via social networks. The Name-Your-Own-Price (NYOP) mechanism is such a collaborative business model where prospective buyers bid for a specific product against an unrevealed threshold price set by the seller. Prospective buyers have strong incentives to learn more about the secret threshold price in NYOP markets, thereby relying on their own network of friends or digital networks of users with similar interest and information needs. This has led to the development of communities sharing the latest experience with bids on products in these markets. Information sharing in digital environments, both person-to-person or via communities can change bidding behavior and can thus have a strong impact on seller profit. However, previous research has so far neglected information diffusion in NYOP markets. The goal of this paper is to determine the impact of information diffusion on bidding behavior and seller profit in NYOP markets for different communication structures in social networks. Thereby, we first develop a normative model for the effect of shared information on bidding behavior. We then empirically test the validity of our model to represent actual behavior in a laboratory experiment with induced valuations. We determine the effect of information diffusion on seller profit for various structures of communication links in social networks via an agent-based simulation. Finally, we test the impact of information diffusion on bidding behavior and seller profit in a field setting with real purchases.

Reference No.: 2007-708

Schwind, M; Hinz, O; Beck, R

A Cost-based Multi-Resource Auction for Service-oriented Grid Computing

In: 8th IEEE/ACM International Conference on Grid Computing (Grid 2007); Austin, Texas

Category: Proceedings

Abstract

The application of Grid technology is finally spreading from engineering and natural science-related industrial sectors to other industries with computational demanding applications. The financial service industry is one of these sectors, however, the diffusion of Grid technology within this sector is often hindered by missing incentives to share the computational resources. A promising way to overcome these barriers is the introduction of a pricing mechanism for the use of Grid-based resources. This work introduces a possible application of such a pricing approach and provides some simulation scenarios to illustrate how effective such an economized Grid solution can be. The simulation results indicate that pooling of IT resources can provide a cost reduction of 33% compared to individual and dedicated servers. However, with a price-based allocation of computing resources, further 10% of cost reduction can be achieved by introducing an auction mechanism. Therefore we claim that there is huge cost reduction potential in the financial service industry beyond the savings that can be achieved by a utility-based allocation of compute resources, if economically inspired allocation methods are combined with advanced refining and learning methods in the allocation process.

Reference No.: 2007-652

Roßnagel, H; Hinz, O

Zahlungsbereitschaft für elektronische Signaturen

In: in A. Oberweis, C. Weinhardt, H. Gimpel, A. Koschmider, V. Pankratius und B. Schnizler (Eds.), Wirtschaftsinformatik 2007 - eOrganisation: Service-, Prozess-, Market-Engineering, 8. Internationale Tagung Wirtschaftsinformatik , Universitätsverlag; Karlsruhe

Category: Proceedings

Abstract

Eine zentrale Voraussetzung für E-Government ist die Möglichkeit, rechtssichere Willenserklärungen auch elektronisch abzugeben. Daher hat der Gesetzgeber mit dem Signaturgesetz und der Signaturverordnung bereits vor Jahren einen entsprechenden Rechtsrahmen geschaffen. Dennoch ist es bisher nicht gelungen, einen funktionierenden Markt für Signaturanwendungen bzw. Zertifizierungsdienstleistungen zu schaffen. Ein Grund für die schleppende Verbreitung von elektronischen Signaturen und somit ein zentrales Hemmnis der Verwaltungsmodernisierung dürfte in den hohen Preisen für Zertifizierungsdienstleistungen zu finden sein. Mit diesem Beitrag versuchen wir auf Basis einer empirischen Studie, die Zahlungsbereitschaft für elektronische Signaturen zu ermitteln und sie den aktuellen Marktpreisen gegenüberzustellen.

Reference No.: 2007-343