Refine
Year of publication
- 2024 (1)
- 2023 (6)
- 2022 (6)
- 2021 (3)
- 2020 (7)
- 2019 (3)
- 2018 (2)
- 2017 (2)
- 2016 (2)
- 2015 (5)
- 2014 (6)
- 2013 (12)
- 2012 (10)
- 2011 (3)
- 2010 (2)
- 2009 (4)
- 2008 (9)
- 2007 (11)
- 2006 (6)
- 2005 (5)
- 2004 (2)
- 2003 (7)
- 2002 (7)
- 2001 (5)
- 2000 (4)
- 1999 (14)
- 1998 (7)
- 1997 (6)
- 1996 (7)
- 1995 (5)
- 1994 (9)
- 1993 (3)
- 1992 (3)
- 1991 (3)
- 1990 (5)
- 1987 (1)
- 1986 (2)
- 1984 (1)
Document Type
- Article (105)
- Conference Proceeding (42)
- Book (32)
- Part of a Book (14)
- Working Paper (2)
- Doctoral Thesis (1)
Language
- English (196) (remove)
Has Fulltext
- no (196) (remove)
Keywords
- Active learning (1)
- Bank-issued Warrants (1)
- Business Models (1)
- Business Process Intelligence (1)
- Case Study (1)
- Challenges (1)
- Clinical decision support systems (1)
- Consensus (1)
- Cross-platform (1)
- Deep learning (1)
- Discourse ethics (1)
- Disposition Effect (1)
- Evaluation (1)
- Explainability (1)
- Feature selection (1)
- Finland (1)
- Gamification (1)
- Germany (1)
- Guidelines (1)
- IT Products (1)
Institute
- Fachbereich Wirtschaftswissenschaften (196) (remove)
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.
Introduction of RePriCo’13
(2013)
IT Products are viewed and managed differently depending on the perspectives and the stage within the life cycle. A model is presented that integrates different perspectives and stages serving as an aid for the analysis of business models and focused positioning of IT-products. Four generic business models are analysed with regard to the product management function in general and the positioning field for IT-products specifically: off-the-shelf (license), license plus service, project, and system service (incl. cloud computing).
The construction of a statistical test is investigated which is based only on “reliability” and “precision” as quality criteria. The reliability of a statistical test is quantifiedin a straightforward way by the probability that the decision of the test is correct. However, the quantification of the precision of a statistical test is not at all evident. Thereforethe paper presents and discusses several approaches. Moreover the distinction of “nullhypothesis” and “alternative hypothesis” is not necessary any longer.
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.
With a steady increase of regulatory requirements for business processes, automation support of compliance management is a field garnering increasing attention in Information Systems research. Several approaches have been developed to support compliance checking of process models. One major challenge for such approaches is their ability to handle different modeling techniques and compliance rules in order to enable widespread adoption and application. Applying a structured literature search strategy, we reflect and discuss compliance-checking approaches in order to provide an insight into their generalizability and evaluation. The results imply that current approaches mainly focus on special modeling techniques and/or a restricted set of types of compliance rules. Most approaches abstain from real-world evaluation which raises the question of their practical applicability. Referring to the search results, we propose a roadmap for further research in model-based business process compliance checking.