Research documents Titler
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reconsidering Japanese Business OrganisationMoeran, Brian (København, 2001)[Flere oplysninger][Færre oplysninger]
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Buch-Kromann, Matthias; Haulrich, Martin (Frederiksberg, 2010)[Flere oplysninger][Færre oplysninger]
Resume: We propose a novel machine learning technique that can be used to estimate probability distributions for categorical random variables that are equipped with a natural set of classification hierarchies, such as words equipped with word class hierarchies, wordnet hierarchies, and suffix and affix hierarchies. We evaluate the estimator on bigram language modelling with a hierarchy based on word suffixes, using English, Danish, and Finnish data from the Europarl corpus with training sets of up to 1–1.5 million words. The results show that the proposed estimator outperforms modified Kneser-Ney smoothing in terms of perplexity on unseen data. This suggests that important information is hidden in the classification hierarchies that we routinely use in computational linguistics, but that we are unable to utilize this information fully because our current statistical techniques are either based on simple counting models or designed for sample spaces with a distance metric, rather than sample spaces with a non-metric topology given by a classification hierarchy. Keywords: machine learning; categorical variables; classification hierarchies; language modelling; statistical estimation URI: http://hdl.handle.net/10398/8221 Filer i denne post: 1
2010-wp-buch-kromann-haulrich.pdf (216.6Kb) -
Raahauge, Peter (København, 2004)[Flere oplysninger][Færre oplysninger]
Resume: Kinks and jumps in the payoff function of option contracts prevent an effective implementation of higher-order numerical approximation methods. Moreover, the derivatives (the greeks) are not easily determined around such singularities, even with standard lower-order methods. This paper suggests a transformation to turn the original ill-conditioned pricing problem into a well-behaved numerical problem. For a standard test case, both vanilla- and binary call price functions are approximated with (tensor) B-splines of up to 10’th order. Polynomial convergence rates of orders up to approximately 10 are obtained for prices as well as for first and second order derivatives (delta and gamma). Unlike similar studies, numerical approximation errors are measured both as weighted averages and in the supnorm over a state space including time-to-maturities down to a split second. KEYWORDS: Numerical option pricing, Transformed state spaces, Higher-order B-splines. URI: http://hdl.handle.net/10398/7157 Filer i denne post: 1
2004_5.pdf (467.4Kb) -
Om Ledelse & Relationer på Danske ArbejdspladserBalslev, Lise; Molin, Jan (Frederiksberg, 2014)[Flere oplysninger][Færre oplysninger]
Resume: Gode og stærke relationer er afgørende for en organisations livskraft. Motivation, engagement, effektivitet, kreativitet mv. er nemlig ofte direkte forbundet med organisationens evne til at skabe stærke relationer mellem ledere, medarbejdere, kunder og omverden. Jane Dutton, Professor of Business Administration and Psychology ved Michigan University, introducerer begrebet High Quality Connections (HQC) og siger. URI: http://hdl.handle.net/10398/8989 Filer i denne post: 1
Balslev.pdf (720.7Kb) -
Fosfuri, Andrea; Røende, Thomas (København, 2002)[Flere oplysninger][Færre oplysninger]
Resume: Abstract We analyze firms’ incentives to cluster in an industrial district to benefit from reciprocal technology spillovers. A simple model of cumulative innovation is presented where technology spillovers arise endogenously through labor mobility. It is shown that firms’ incentives to cluster are the strongest when the following three conditions are met: 1) technological progress is rapid; 2) competition in the product market is relatively soft; 3) the probability of a single firm to develop an innovation is neither very high nor very low. We show that some trade secret protection is always beneficial for firms’ profits and stimulates clustering. Excessive protection may impede technology spillovers and reduce firms’ incentives to cluster. JEL Codes: J3, K2, L1, O32, O34. Keywords: Cumulative innovation, industrial districts, intellectual property rights, technology spillovers. URI: http://hdl.handle.net/10398/6784 Filer i denne post: 1
wplefic132002.pdf (365.3Kb) -
Fosfuri, Andrea; Rønde, Thomas (København, 2002)[Flere oplysninger][Færre oplysninger]
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how top managers and consultants facilitate organizational transformation by improving social competencies and total qualityMaula, Marjatta (København, 2001)[Flere oplysninger][Færre oplysninger]
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Accentuated challenges of IT & Operations-based value creationToppenberg, Gustav (Frederiksberg, 2013)[Flere oplysninger][Færre oplysninger]
Resume: Technology driven industries have seen fast moving technology changes, higher complexity and reduced product life cycles. These emerging trends present challenges for companies in industries where technology is at the forefront. The extant research deals with ‘low-tech’ industries and majority of findings are not applicable to the high-tech industry; in fact this industry has many additional challenges. In this study, we aim to explore the process of M&A in the high-tech industry by drawing on extant literature and empirical field work. The paper outlines a research project in progress which intends to provide theoretical, empirical and practical contributions in answering the research question: what role does Operations and IT play in creating value in high-tech M&As? The research adds a needed perspective on M&A literature by unveiling unique challenges and opportunities faced by the M&A teams in this sector. The phenomenon is studied from multiple perspectives: integration team, acquiring group and the company being acquired. URI: http://hdl.handle.net/10398/8787 Filer i denne post: 1
Gustav Toppenberg.pdf (207.8Kb) -
Ougaard, Morten (Frederiksberg, 2017)[Flere oplysninger][Færre oplysninger]
Resume: This paper addresses one of the “exemplary questions” listed by the panel conveners, namely: “How does the postcolonial perspective enable/disable the rethinking of theories and concepts considered central to critical IR?” This requires an explication of how I see the several parts of the exemplary question. I will do this in reverse order, beginning with critical IR. URI: http://hdl.handle.net/10398/9544 Filer i denne post: 1
Ougaard_WISC2017.pdf (505.2Kb) -
Belyst ved investorer og analytikeres holdningerPlenborg, Thomas; Holm, Jakob Wagner; Banghøj, Jesper; Østrup, Jens (Frederiksberg, 2009)[Flere oplysninger][Færre oplysninger]
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En fortolkning og udarbejdning af Carl Schmitts retsfilosofi på grundlag af en kritisk helhedslæsning af forfatterskabetMossin, Christiane (Frederiksberg, 2010)[Flere oplysninger][Færre oplysninger]
URI: http://hdl.handle.net/10398/8063 Filer i denne post: 1
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A European PerspectiveKarlsson, Christer; Åhlström, Pär (Stockholm, 1998)[Flere oplysninger][Færre oplysninger]
Resume: The aim of this paper is to create a European perspective on the history of thought in operations management and to analyze driving and determining factors shaping different schools of thought. An attempt to describe the European contributions to operations management’s history of thought will by necessity be heavily influenced by the authors of the description. Even if the description can be based on facts, in the form of publications, individuals, and organizations, there is a need to interpret and reflect on the facts. The view presented here is produced by a researcher holding a professorship in Industrial production and with a background in executive development and consulting, together with his research assistant holding a Ph.D. with special studies of production system change and implementation. Part of the database is, however, distinct and real and has not really been accessed by anyone else. The database consists of twelve years of experience of assessing thousands of abstracts and manuscripts from all over Europe submitted to the European Institute for Advanced Studies in Management (EIASM). URI: http://hdl.handle.net/10398/9488 Filer i denne post: 1
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Er Danskere Specielle?Munch, Jakob Roland; Rose Skaksen, Jan; Schroll, Sanne; Malchow-Møller, Nikolaj (København, 2006)[Flere oplysninger][Færre oplysninger]
Resume: Denne artikel belyser holdninger til immigration blandt borgere i Danmark og de øvrige EU-15 lande - herunder holdningerne til immigration, der følger af den seneste EU-udvidelse. Det analyseres, hvilke faktorer der ligger til frund for disse holdninger, samt i hvilken udstrækning danskere afviger fra EU-gennemsnittet. Den typiske dansker er lidt mere skeptisk overfor immigration end andre europæere. Danskerne afskiller sig desuden ved, at forholdsvis få forbinder øget immigration med negative konsekvenser for arbejdsmarkedet, men forholdsvis mange forbinder det med højere omkostninger for velfærdsstaten. Når der tages hensyn til opfattelserne af de økonomiske konsekvenser af immigration, kommer Danmark til at fremstå som et væsentligt mere immigrationsskeptisk land, end hvad der kommer til udtryk i de ukorrigerede holdninger. URI: http://hdl.handle.net/10398/7564 Filer i denne post: 1
ap_2006-01_001.pdf (411.2Kb) -
Krut, Riva; Moretz, Ashley (København, 1999)[Flere oplysninger][Færre oplysninger]
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Do Police Reduce Group Violence?Priks, Mikael; Poutvaara, Panu (København, 2007)[Flere oplysninger][Færre oplysninger]
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Borum, Finn (København, 2003)[Flere oplysninger][Færre oplysninger]
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Lunde, Jens (København, 2008)[Flere oplysninger][Færre oplysninger]
Resume: Housing markets in several countries are suffering. The prolonged and strong housing price rises of recent years have turned around. Historical records suggest that housing price drops may happen slowly but be large. Housing prices continue to fall because capital losses have substituted capital gains, housing equities are falling, and housing price expectations have become negative. Household debt had increased to the same degree as housing prices or even more in some countries. Access to mortgage and credit had improved and lenders used "cruise control” when financing still higher housing market prices. Now, housing demand is further weakened because access to credit has been tightened. During a downturn, owner-occupiers’ housing price risk is increased and a growing number of owners have negative equity and payment troubles. Under these conditions, arrears and foreclosures will be widespread in owner-occupation. The effects on the wider economy of a housing price downturn are discussed. Not only does the lenders’ increased credit risk lead to tightened credit access, losses threaten the banks and can create financial crises. Falling housing prices clearly depress the housing market and housing construction activities and thereby the contribution of residential investments to economic growth, while it is less obvious that average housing consumption and residential investments over the whole cycle are affected. The reduction of non-housing consumption as a result of a wealth effect is a reality for years for depressed owner-occupiers but in the aggregate, the housing wealth effect is more dubious. URI: http://hdl.handle.net/10398/7141 Filer i denne post: 1
wp 2008-1 jens lunde.pdf (199.0Kb) -
Toward an Alternative Epistemology for Gender Research in OrganizationsEllehave, Camilla Funck (København, 2004)[Flere oplysninger][Færre oplysninger]
Resume: "How becoming!" we say (though often with a subtle ironic twist) when someone says or does something that we find is suitable or appropriate for him- or her or the situation in which he or she is. And while it may be old-fashioned, the phrase is also used when the clothes people are wearing make them look attractive. By pronouncing: ‘how becoming!’ we condone the appearance, the saying or the doing by making a reference to the appropriateness of somebody’s attire, words and deeds. However, the appropriateness is situated in that it is based on cultural conventions of a particular time and space, and simultaneously produces culturally accepted boundaries around what denotes culturally intelligible identities or subject positions (parallel to suggesting that something is "for the likes of you/us" versus "not for the likes of you/us" (Bourdieu, 1990:55-56)). URI: http://hdl.handle.net/10398/6679 Filer i denne post: 1
forside 200406+working paper.pdf (257.5Kb) -
A Governmentality PerspectiveFlyverbom, Mikkel; Koed Madsen, Anders; Rasche, Andreas (Frederiksberg, 2016)[Flere oplysninger][Færre oplysninger]
Resume: The aim of this paper is conceptualize and illustrate how large-scale data and algorithms condition and reshape knowledge production when addressing international development challenges. Based on a review of relevant literature on the uses of big data in the context of development, we unpack how digital traces from cell phone data, social media data or data from internet searches are used as sources of knowledge in this area. We draw on insights from governmentality studies and argue that big data’s impact on how relevant development problems are governed revolves around (1) new techniques of visualizing development issues, (2) a reliance on algorithmic operations that synthesize large-scale data, (3) and novel ways of rationalizing the knowledge claims that underlie development efforts. Our discussion shows that the reliance on big data challenges some aspects of traditional ways to collect and analyze data for development (e.g. via household surveys and deductive approaches), and we articulate intersections between different kinds of knowledge production, different ways of collecting and controlling data, and different epistemic foundations for addressing and governing development problems. URI: http://hdl.handle.net/10398/9414 Filer i denne post: 1
Flyverbom_KoedMadsen_RascheEGOS2016.pdf (638.8Kb) -
A Situation Specific Analysis of Availability, Accessibility and Applicability of Cultural Knowledge in Inductive, Deductive and Abductive Reasoning in Two Design Debriefing SessionsClemmensen, Torkil; Ranjan, Apara; Bødker, Mads (Frederiksberg, 2016)[Flere oplysninger][Færre oplysninger]
Resume: This paper challenges the ‘core design thinking and its application’ as outlined by Dorst (2011) and uses a dynamic constructivist notion of cultural-cognitive performance to analyze aspects of a design thinking process (Clemmensen, 2009; Hong & Mallorie, 2004). Based on a qualitative analysis of some of the events in the DTRS11 data set and using the theory of Dorst on design thinking as well as Hong & Mallorie’s socio-cognitive theory of cultural knowledge networks, the paper shows how it is possible and useful to analyze design thinking from a cultural perspective. The results show that cultural knowledge, either as shared knowledge by the cross-cultural team or group specific knowledge, influences the Dorst design thinking equations across all the 16 episodes analyzed in DTRS11 data set. Furthermore, most of the design discussions were approached by the designers as problem situations and were approached in a backwards manner, where the value to create was known; however, the designers were using available cultural knowledge to figure out the unknown what (products/services) and how (working principles of why something would work or not work). In conclusion, the paper demonstrates a novel approach to understand how design thinking can be efficiently understood as a culturally situated practice. URI: http://hdl.handle.net/10398/9389 Filer i denne post: 1