TY - CHAP
A1 - Kroll-Ludwigs, Kathrin
ED - Colliess, Gralf-Peter
T1 - Art. 7 Rome III-Regulation (formal validity)
T2 - Rome Regulations : commentary
Y1 - 2015
SN - 9789041147547
PB - Wolters Kluwer
ET - 2nd ed.
ER -
TY - CHAP
A1 - Pietsch, Wolfram
A1 - Herzwurm, Georg
A1 - Zander, Dietmar
T1 - Assuring quality of QFD-education in Germany
T2 - ISQFD'06: 12th International Symposium on QFD : Tokyo, 07.-09.2006
Y1 - 2006
SP - 1
EP - 6
ER -
TY - JOUR
A1 - Beverungen, Daniel
A1 - Eggert, Mathias
A1 - Voigt, Matthias
A1 - Rosemann, Michael
T1 - Augmenting Analytical CRM Strategies with Social BI
JF - International Journal of Business Intelligence Research (IJBIR)
Y1 - 2013
U6 - https://doi.org/10.4018/ijbir.2013070103
SN - 1947-3591
VL - 4
IS - 3
SP - 32
EP - 49
PB - IGI Global
CY - Hershey
ER -
TY - JOUR
A1 - Pietsch, Wolfram
T1 - Augmenting voice of the customer analysis by analysis of belief
JF - QFD-Forum
Y1 - 2015
SN - 1431-6951
IS - 30
SP - 1
EP - 5
ER -
TY - CHAP
A1 - Eggert, Mathias
T1 - Big Data Research - How to Structure the Changes of the Past Decade?
T2 - The Art of Structuring
N2 - In the past decade, many IS researchers focused on researching the phenomenon of Big Data. At the same time, the relevance of data protection gets more attention than ever before. In particular, since the enactment of the European General Data Protection Regulation in May 2018 Information Systems research should provide answers for protecting personal data. The article at hand presents a structuring framework for Big Data research outcome and the consideration of data protection. IS Researchers might use the framework in order to structure Big Data literature and to identify research gaps that should be addressed in the future.
Y1 - 2019
SN - 978-3-030-06234-7
U6 - https://doi.org/10.1007/978-3-030-06234-7_26
SP - 271
EP - 281
PB - Springer
CY - Cham
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - Book Reviews - Cowie, Harry, Private Partnership and Public Networks in Europe
JF - Regional and federal studies. 9 (1999), H. 2
Y1 - 1999
SN - 1359-7566
SP - 111
EP - 111
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - Book Reviews - Morass, Michael; Regionale Interessen auf dem Weg in die Europäische Union: Strukturelle Entwicklung und Perspektiven der Interessenvermittlung Österreichischer und deutscher Ländesakteure im Rahmen der Europäischen Integration
JF - Regional and federal studies. 8 (1998), H. 1
Y1 - 1998
SN - 1359-7566
SP - 227
EP - 227
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - Book Reviews - Samardzic, Slobodan and Thomas Fleiner, Federalismus und Minderheitenproblem in Multiethnischen Gemeinschaften
JF - Regional and federal studies. 8 (1998), H. 3
Y1 - 1998
SN - 1359-7566
SP - 138
EP - 138
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - Books Reviewed - European Democratization since 1800 edited by J. Garrard, V. Tolz and R. White
JF - Democratization. 7 (2000), H. 4
Y1 - 2000
SN - 1351-0347
SP - 219
EP - 219
ER -
TY - JOUR
A1 - Palmer, J. W.
A1 - Lindemann, Markus
T1 - Business models and market mechanisms : evaluating efficiency in consumer electronic markets
JF - Data base and advanced information systems. Bd. 34 (2003), H. 2
Y1 - 2003
SN - 0105-9912
SP - 23
EP - 38
ER -
TY - JOUR
A1 - Becker, Jörg
A1 - Delfmann, Patrick
A1 - Dietrich, Hanns-Alexander
A1 - Steinhorst, Matthias
A1 - Eggert, Mathias
T1 - Business Process Compliance Checking — Applying and Evaluating a Generic Pattern Matching Approach for Conceptual Models in the Financial Sector
JF - Information Systems Frontiers
N2 - Given the strong increase in regulatory requirements for business processes the management of business process compliance becomes a more and more regarded field in IS research. Several methods have been developed to support compliance checking of conceptual models. However, their focus on distinct modeling languages and mostly linear (i.e., predecessor-successor related) compliance rules may hinder widespread adoption and application in practice. Furthermore, hardly any of them has been evaluated in a real-world setting. We address this issue by applying a generic pattern matching approach for conceptual models to business process compliance checking in the financial sector. It consists of a model query language, a search algorithm and a corresponding modelling tool prototype. It is (1) applicable for all graph-based conceptual modeling languages and (2) for different kinds of compliance rules. Furthermore, based on an applicability check, we (3) evaluate the approach in a financial industry project setting against its relevance for decision support of audit and compliance management tasks.
Y1 - 2016
U6 - https://doi.org/10.1007/s10796-014-9529-y
SN - 1572-9419
VL - 18
IS - 2
SP - 359
EP - 405
PB - Springer
CY - Berlin
ER -
TY - CHAP
A1 - Drumm, Christian
A1 - Lemcke, Jens
A1 - Oberle, Daniel
T1 - Business Process Management And Semantic Technologies
T2 - The Semantic Web
Y1 - 2007
SN - 978-0-387-48531-7
U6 - https://doi.org/10.1007/978-0-387-48531-7_10
SP - 207
EP - 239
PB - Springer
CY - Boston, MA
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Steinbauer, Dieter
T1 - Business Process Reengineering
JF - Wirtschaftsinformatik. 36 (1994), H. 5
Y1 - 1994
SN - 0937-6429
SP - 502
EP - 505
ER -
TY - JOUR
A1 - Schmitz, Philipp
A1 - Weber, Martin
T1 - Buying and selling behavior of individual investors in option-like securities
JF - Die Betriebswirtschaft : DBW
N2 - We analyze the trading behavior of individual investors in option-like securities, namely bankissued warrants, and thus expand the growing literature of investors behavior to a new kind of securities. A unique data set from a large German discount broker gives us the opportunity to analyze the trading behavior of 1,454 investors, making 89,958 transactions in 6,724 warrants on 397 underlyings. In different logit regression, we make use of the facts that investors can speculate on rising and falling prices of the underlying with call and put warrants and that we also have information about the stock portfolios of the investors. We report several facts about the trading behavior of individual investors in warrants that are consistent with the literature on the behavior of individual investors in the stock market. The warrant investors buy calls and sell puts if the price of the underlying has decreased over the past trading days and they sell calls and buy puts if the price of the underlying has increased. That means, the investors follow negative feedback trading strategies in all four trading categories observed. In addition, we find strong evidence for the disposition effect for call as well as put warrants, which is reversed in December. The trading behavior is also influenced if the underlying reaches some exceptionally prices, e.g. highs, lows or the strike price. We show that hedging, as one natural candidate to buy puts, does not play an important role in the market for bank-issued warrants.
KW - Bank-issued Warrants
KW - Disposition Effect
KW - Negative Feedback Trading
KW - Trading Behavior
KW - Individual Investors
Y1 - 2012
U6 - https://doi.org/10.2139/ssrn.2055088
SN - 0342-7064
VL - 72
IS - 5
SP - 409
EP - 426
PB - Schäffer-Poeschel
CY - Stuttgart
ER -
TY - JOUR
A1 - Schmitz, Philipp
A1 - Weber, Martin
T1 - Buying and selling behavior of individual investors in option-like securities
Y1 - 2007
SP - 1
EP - 36
ER -
TY - JOUR
A1 - Pietschmann, Bernd P.
A1 - Vahs, Dietmar
T1 - Change Management - Wie Sie Ihr Unternehmen fit für die Zukunft machen. Teil 1: Erfolgsfaktoren von Veränderungsprozessen
JF - News / ASU ; BJU : von Unternehmern für Unternehmer. Ausgabe Baden-Württemberg. 13 (1996), H. 5
Y1 - 1996
SP - 76
EP - 79
ER -
TY - JOUR
A1 - Pietschmann, Bernd P.
A1 - Vahs, Dietmar
T1 - Change Management - Wie Sie Ihr Unternehmen fit für die Zukunft machen. Teil 2: Prozeßmanagement - Von starren Strukturen zu flexiblen Prozessen
JF - News / ASU ; BJU : von Unternehmern für Unternehmer. Ausgabe Baden-Württemberg. 13 (1996), H. 6
Y1 - 1996
SP - 84
EP - 86
ER -
TY - BOOK
A1 - Gottschalk, Sandra
A1 - Janz, Norbert
A1 - Rennings, Klaus
T1 - Characteristics and Performance of Eco-Innovative Firms in the German Service Sector
Y1 - 1998
ER -
TY - CHAP
A1 - Hammer, Andreas
A1 - Vieth, Matthias
A1 - Maier, Frank
T1 - Co-Plot as a new multivariate analysis method for operations management research?
T2 - Papers of the 12th International EurOMA Conference on Operational and Global Competitiveness, Budapest, Hungary, June 19-22, 2005 / Editor: Krisztina Demeter
Y1 - 2005
SN - 963-218-455-6
SP - 1007
EP - 1016
ER -
TY - CHAP
A1 - Jarke, Matthias
A1 - Gebhardt, Michael
A1 - Jacobs, Stephan
A1 - Nissen, Hans W.
T1 - Conflict analysis across heterogeneous viewpoints: formalization and visualization
T2 - Proceedings of the 29th Annual Hawaii International Conference on System Sciences
Y1 - 1996
SN - 0-8186-7324-9
U6 - https://doi.org/10.1109/HICSS.1996.493191
SP - 199
EP - 208
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Gebhardt, Michael
T1 - Conflict Management in Design /
JF - Transactions from the Eighth Symposium on Quality Function Deployment : (concurrent with International Symposium on QFD 96] ; June 9 - 11, 1996, Novi, Michigan, USA / sponsored by: QFD Institute
Y1 - 1996
N1 - Symposium on Quality Function Deployment ; (8, 1996, Novi, Mich.)
PB - QFD Institute
CY - Ann Arbor, Mich.
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Hermanns, Oliver
T1 - Cooperative Design: Requirements on Network Technology and Document Architecture
JF - Selected papers of the 6th Joint European Networking Conference / guest ed.: J. Barberá
Y1 - 1996
N1 - Joint European Networking Conference <6, 1995, Tel Aviv>; Computer networks and ISDN systems ; 28,4 : special issue
PB - Elsevier
CY - Amsterdam [u.a.]
ER -
TY - JOUR
A1 - Jacobs, Stephan
T1 - CSCW for Requirements Engineering - Requirements Engineering for CSCW
JF - Proceedings of the Third European Conference on Computer Supported Cooperative Work : 13 - 17 September 1993, Milan, Italy ; ECSCW ' 93 / ed. by Giorgio de Michelis ...
Y1 - 1993
SN - 0-7923-2447-1
N1 - ECSCW <3, 1993, Milano> ; [Workshop "CSCW Tools and Technologies: Definging Research Agendas]
PB - Kluwer
CY - Dordrecht [u.a.]
ER -
TY - JOUR
A1 - Pietsch, Wolfram
T1 - Customer-Oriented Specification and Evaluation of IT Service Level Agreements
JF - Software process improvement : Elektronische Ressource : 12th European conference ; proceedings / EuroSPI 2005, Budapest, Hungary, November 9 - 11, 2005. Ita Richardson ... (ed.)
Y1 - 2005
SN - 3-540-30286-7
N1 - Lecture notes in computer science ; 3792 ; EuroSPI <12, 2005, Budapest>
SP - 83
EP - 94
PB - Springer
CY - Berlin [u.a.]
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Defining Precisions for Reliable Measurement and Estimation Procedures
JF - Economic Quality Control. 24 (2009), H. 1
Y1 - 2009
SN - 0940-5151
SP - 5
EP - 33
PB - De Gruyter
CY - Berlin
ER -
TY - BOOK
A1 - Gell, Sebastian
T1 - Determinants of earnings forecast error, earnings forecast revision and earnings forecast accuracy
N2 - Earnings forecasts are ubiquitous in today’s financial markets. They are essential indicators of future firm performance and a starting point for firm valuation. Extremely inaccurate and overoptimistic forecasts during the most recent financial crisis have raised serious doubts regarding the reliability of such forecasts. This thesis therefore investigates new determinants of forecast errors and accuracy. In addition, new determinants of forecast revisions are examined. More specifically, the thesis answers the following questions: 1) How do analyst incentives lead to forecast errors? 2) How do changes in analyst incentives lead to forecast revisions?, and 3) What factors drive differences in forecast accuracy?
Y1 - 2012
SN - 978-3-8349-3936-4
SN - 978-3-8349-3937-1
U6 - https://doi.org/10.1007/978-3-8349-3937-1
N1 - Titel in der Buchreihe: Quantitatives Controlling
PB - Springer Gabler
CY - Wiesbaden
ER -
TY - JOUR
A1 - Grap, Rolf Dietmar
T1 - Determining manpower requirements in a spinning mill
JF - Chemical fibers international : CFI ; fiber polymers, fibers, texturing, and spunbonds (2003)
Y1 - 2003
SN - 0340-3343
SP - 455
EP - 458
ER -
TY - JOUR
A1 - Mischke, Winfried
T1 - Die Garantie im Kaufrecht
JF - Betriebs-Berater. 50 (1995), H. 22
Y1 - 1995
SN - 0340-7918
SP - 1093
EP - 1096
ER -
TY - JOUR
A1 - Bernecker, Andreas
T1 - Divided Government and the Adoption of Economic Reforms
JF - CESifo DICE Report - Journal for Institutional Comparison
Y1 - 2014
SN - 1612-0663
VL - 12
IS - 4
SP - 47
EP - 52
PB - Ifo Institute for Economic Research
CY - München
ER -
TY - JOUR
A1 - Bernecker, Andreas
T1 - Divided we reform? Evidence from US welfare policies
JF - Journal of Public Economics
N2 - Divided government is often thought of as causing legislative deadlock. I investigate the link between divided government and economic reforms using a novel data set on welfare reforms in US states between 1978 and 2010. Panel data regressions show that, under divided government, a US state is around 25% more likely to adopt a welfare reform than under unified government. Several robustness checks confirm this counter-intuitive finding. Case study evidence suggests an explanation based on policy competition between governor, senate, and house.
Y1 - 2016
U6 - https://doi.org/10.1016/j.jpubeco.2016.08.003
SN - 0047-2727
VL - 142
SP - 24
EP - 38
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Bernecker, Andreas
T1 - Do politicians shirk when reelection is certain? Evidence from the German parliament
JF - European Journal of Political Economy
N2 - Does stiffer electoral competition reduce political shirking? For a micro-analysis of this question, I construct a new data set spanning the years 2005 to 2012 covering biographical and political information about German Members of Parliament (MPs), including their attendance rates in voting sessions. For the parliament elected in 2009, I show that indeed opposition party MPs who expect to face a close race in their district show significantly and relevantly lower absence rates in parliament beforehand. MPs of governing parties seem not to react significantly to electoral competition. These results are confirmed by an analysis of the parliament elected in 2005, by several robustness checks, and also by employing an instrumental variable strategy exploiting convenient peculiarities of the German electoral system. The study also shows how MPs elected via party lists react to different levels of electoral competition.
Y1 - 2014
U6 - https://doi.org/10.1016/j.ejpoleco.2014.07.001
SN - 0176-2680
VL - 36
SP - 55
EP - 70
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Weigand, Christoph
A1 - Collani, E. v.
A1 - Saniga, E.M.
T1 - Economic Adjustment Design for -Control Charts. E.v.Collani, E.M. Saniga, Ch. Weigand
JF - IIE Transactions / Institute of Industrial Engineers. 26 (1994), H. 6
Y1 - 1994
SN - 0569-5554
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Economic Machine Adjustment in the Case of Product Screening .E.v.Collani, Ch. Weigand
JF - Statistical Papers. 33 (1992)
Y1 - 1992
SP - 171
EP - 184
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Economically Optimal Adaptive Inspection Policies
JF - Economic Quality Control. 15 (2000), H. 1/2
Y1 - 2000
SN - 0940-5151
N1 - Printausgabe vorhanden: 43 Z 711
SP - 55
EP - 77
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Economically Optimal Inspection Policy with Arithmetical Adaption
JF - Applied stochastic models and data analysis / [10th International Symposium on Applied Stochastic Models and Analysis, June 12-15 2001, Université Technologique de Compiègne] ; editors Gérard Govaert, Jacques Janssen, Nikolaos Limnios.
Y1 - 2001
N1 - ASDMA 2001
SP - 1010
EP - 1015
PB - Université Technologique de Compiègne
CY - Compiègne
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Economically Optimal Inspection Policy with Geometrical Adaption
JF - Journal of Applied Statistics. 30 (2003), H. 5
Y1 - 2003
SN - 0266-4763
N1 - weitere ISSN 1360-0532 (E)
SP - 555
EP - 569
ER -
TY - BOOK
A1 - Maercker, Gisela
T1 - Efficient estimation in AR models with ARCH errors
Y1 - 1995
N1 - Bericht // Institute für Mathematik, Technische Universität Braunschweig ; 95,10
PB - Institute für Mathematik, Techn. Univ.
CY - Braunschweig
ER -
TY - CHAP
A1 - Lindemann, Markus
A1 - Runge, Alexander
T1 - Electronic contracting within the reference model for electronic markets
T2 - Proceedings of the Sixth European Conference on Information Systems, ECIS 1998, Aix-en-Provence, France, June 4-6, 1998 / Walter Baets (ed.)
Y1 - 1998
SN - 849238333X
SP - 44
EP - 59
PB - Euro-Arab Management School
ER -
TY - CHAP
A1 - Schmid, Beat F.
A1 - Lindemann, Markus
T1 - Elements of a reference model for electronic markets
T2 - System sciences : proceedings. Vol. 4: Internet and the digital economy track / Thirty-first Hawaii International Conference on Systems Science : HICSS'98, Big Island of Hawaii, January 6-9, 1998 / ed. by Robert W. Blanning and David R. King. IEEE catalog ; 98TB100216
Y1 - 1998
SN - 0-8186-8242-6
SP - 193
EP - 201
PB - IEEE Computer Society Pr.
CY - Los Alamos, CA
ER -
TY - THES
A1 - Schmitz, Philipp
T1 - Empirical analyses of the trading behavior of individual investors in the warrant market
Y1 - 2007
N1 - Mannheim, Univ., Diss., 2007
ER -
TY - CHAP
A1 - Fredebeul-Krein, Markus
A1 - Steingröver, Markus
T1 - Enhancing broadband development and internet usages for improving networks and services in APEC member economies: Bridging the digital divide
T2 - The 19th ITS Biennial Conference 2012 “Moving Forward with Future Technologies: Opening a Platform for All” 18 - 21 November 2012, Thailand
Y1 - 2013
PB - ITS
CY - Bangkok
ER -
TY - BOOK
A1 - Hack, Stefan
A1 - Lindemann, Markus
T1 - Enterprise SOA Roadmap
Y1 - 2008
SN - 1-59229-162-7
PB - Galileo Pr.
CY - Bonn
ER -
TY - JOUR
A1 - Stephan, Jürgen
A1 - Güth, Werner
T1 - Equilibrium Selection in the One Seller and Many Buyers Game / Güth, Werner, Stephan, Jürgen
JF - Zeitschrift für Nationalökonomie. Journal of Economics. 44 (1984), H. 3
Y1 - 1984
SN - 1617-7134
SP - 267
EP - 281
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Quernheim, Ulrich
T1 - Error Control Techniques for Digital Satellite Links
JF - C-band antennas for regional communication systems : 1st European Conference Satellite Communications, ECSC-1, München, 28.-30.11.89 / Wolf, H. u.a. [Mitarb.]. Information und Dokumentation, Messerschmitt-Bölkow-Blohm GmbH (MBB), München
Y1 - 1990
PB - OTN-Berichtsstelle, Technisch-wissenschaftliche Information, Messerschmitt-Bölkow-Blohm GmbH
CY - München
ER -
TY - BOOK
A1 - Bernecker, Andreas
T1 - Essays in Empirical Political Economics
Y1 - 2014
N1 - Mannheim, Univ., Diss., 2014.
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
T1 - Export and Innovation Activities in the German Service Sector. Empirical Evidence at the Firm Level / Ebling, G.. und N. Janz
Y1 - 1999
N1 - ZEW-Discussion Paper 99-53 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp5399.pdf
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - JOUR
A1 - Mueller, Tobias
A1 - Segin, Alexander
A1 - Weigand, Christoph
A1 - Schmitt, Robert H.
T1 - Feature selection for measurement models
JF - International journal of quality & reliability management
N2 - Purpose
In the determination of the measurement uncertainty, the GUM procedure requires the building of a measurement model that establishes a functional relationship between the measurand and all influencing quantities. Since the effort of modelling as well as quantifying the measurement uncertainties depend on the number of influencing quantities considered, the aim of this study is to determine relevant influencing quantities and to remove irrelevant ones from the dataset.
Design/methodology/approach
In this work, it was investigated whether the effort of modelling for the determination of measurement uncertainty can be reduced by the use of feature selection (FS) methods. For this purpose, 9 different FS methods were tested on 16 artificial test datasets, whose properties (number of data points, number of features, complexity, features with low influence and redundant features) were varied via a design of experiments.
Findings
Based on a success metric, the stability, universality and complexity of the method, two FS methods could be identified that reliably identify relevant and irrelevant influencing quantities for a measurement model.
Originality/value
For the first time, FS methods were applied to datasets with properties of classical measurement processes. The simulation-based results serve as a basis for further research in the field of FS for measurement models. The identified algorithms will be applied to real measurement processes in the future.
KW - Feature selection
KW - Modelling
KW - Measurement models
KW - Measurement uncertainty
Y1 - 2022
U6 - https://doi.org/10.1108/IJQRM-07-2021-0245
SN - 0265-671X
IS - Vol. ahead-of-print, No. ahead-of-print.
PB - Emerald Group Publishing Limited
CY - Bingley
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Gebhardt, Michael
A1 - Kethers, Stefanie
A1 - Rzasa, Wojtek
T1 - Filling HTML forms simultaneously: CoWeb — architecture and functionality
JF - Computer Networks and ISDN Systems. Vol. 30 (1996), H. Issues 1-7
Y1 - 1996
SN - 0376-5075
SP - 1385
EP - 1395
ER -
TY - JOUR
A1 - Mackenstein, Hans
A1 - Jeffery, Charlie
T1 - Financial equalization in the 1990s : on the road back to Karlsruhe / Hans Mackenstein and Charlie Jeffery
JF - Recasting German federalism : the legacies of unification
Y1 - 1999
SN - 1-85567-579-x
SP - 155
EP - 176
PB - Pinter
CY - London
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Lööf, Hans
A1 - Peters, Bettina
T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
JF - Problems and Perspectives in Management (2004)
Y1 - 2004
SN - ISSN 1727-7051
N1 - online download: http://businessperspectives.org/files/ppm/PPM_EN_2004_02_Janz.pdf
SP - 184
EP - 204
ER -