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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
221

Big data analytics capability and market performance: The roles of disruptive business models and competitive intensity

Olabode, Oluwaseun E., Boso, N., Hultman, M., Leonidou, C.N. 08 October 2021 (has links)
Yes / Research shows that big data analytics capability (BDAC) is a major determinant of firm performance. However, scant research has theoretically articulated and empirically tested the mechanisms and conditions under which BDAC influences performance. This study advances existing knowledge on the BDAC–performance relationship by drawing on the knowledge-based view and contingency theory to argue that how and when BDAC influences market performance is dependent on the intervening role of disruptive business models and the contingency role of competitive intensity. We empirically test this argument on primary data from 360 firms in the United Kingdom. The results show that disruptive business models partially mediate the positive effect of BDAC on market performance, and this indirect positive effect is strengthened when competitive intensity increases. These findings provide new perspectives on the business model processes and competitive conditions under which firms maximize marketplace value from investments in BDACs.
222

How and when does big data analytics capability contribute to market performance

Olabode, Oluwaseun E., Boso, N., Hultman, Magnus, Leonidou, C.N. 19 September 2023 (has links)
Yes / This study looks at the relationship between big data analytics capability and market performance and how this relationship can be facilitated by adopting disruptive business models in competitive environments.
223

Harassment in Video Games : An Observational Study in an Online Multiplayer Video Game on Frequency, Categories, and Targets

Kopp, Felicia Mercedes January 2024 (has links)
Background: Harassment is defined and labelled differently in different studies. In the context of video games it has been investigated multiple ways: diary studies, interviews, surveys and screen recordings. Methods: Video data through participating observation were conducted from the end of February 2024 to the beginning of April 2024. A total of 24 matches, with 219 participants, were recorded. The questions of how often harassment occurs, which of the five defined types of harassment occur, whether there are differences between game modes, what differences there are in terms of the reaction to harassment, and whether there are gender differences in terms of the victims, were investigated. Results: One third of the matches contained harassment. Offensive harassment occurred most frequently, with harassment occurring more frequently in competitive game mode and demonstrating a wider range of harassment. In most cases, harassment is focussed either on the player's own team or on the opposing team. The range of harassment within a team is also greater than when harassment is directed at the opposing team. In competitive game mode, harassment is mainly focussed on the own team. Conclusions: The results of the study support the findings of other studies. They also indicate that harassment in video games should be investigated with a larger number of influencing factors. In particular, the methodology used closes a research gap and could ensure a better insight into the different types of harassment without collecting the data through third parties and thus presumably causing bias.
224

Disruptive market shift: conceptualization, antecedents, and response mechanisms

Olabode, Oluwaseun E., Hultman, M., Boso, N., Leonidou, C. 04 June 2023 (has links)
Yes / Although prior research has examined the effects of different forms of disruptive market shift on organizational practice, structure, and performance, knowledge is lacking on its conceptual domain, antecedents, and organizational response outcomes. This study draws insights from an in-depth analysis of 23 organizations to conceptualize disruptive market shift and explore its antecedents and consequences. We find that digitization, technological advancements, political uncertainty and government regulations, competitive pressures, the media, and customer dynamism are major drivers of disruptive market shifts. Furthermore, evidence suggests that organizations establish collaborative relationships, initiate internal transformational processes, and develop innovative metrics and patterns to respond to disruptive market shifts. We discuss the theoretical and managerial implications of the findings.
225

Innovation focused on the base of pyramid : the case of an African telecommunications company

Van Rooyen, Gert Willem 12 1900 (has links)
Thesis (MBA (Business Management))--University of Stellenbosch, 2007. / AFRIKAANSE OPSOMMING: In vandag se besigheidswêreld bestaan twee teenoorgestelde pole. Aan die een kant is die wêreld se gevorderde markte wat reeds so oorbevolk geraak het, dat dubbelsyfergroei ‘n skaars verskynsel is. Ten spyte hiervan word aanhoudende druk geplaas op senior bestuur om hulle besighede te groei teen koerse wat ‘n toename in aandeelhouersbelang sal verseker. Aan die ander kant is twee derdes van die wêreld se bevolking (4 Miljard mense), die sogenaamde basis van die ekonomiese piramiede (BVP), wat in armoede lewe en afgeskeep word in terme van noodsaaklike goedere en dienste, om nie eens te praat van weelde artikels nie. In dié markte is dubbelsyfergroei nog behaalbaar en in meeste gevalle is die enigste kompetisie die gevaar dat produkte nie verbruik word nie. Dié navorsing kyk na hoe dié twee pole geïntegreer kan word sodat beide daaruit kan voordeel trek. Besighede kan volhoubare vlakke van groei bewerkstellig deur ewe veel aandag te skenk aan volhoubare innovasies as ontwrigtende innovasies. Die klem wat gemaak word in dié navorsingsverlsag is dat besighede dit nie kan bekostig om net op volhoubare innovasies te fokus nie. Hulle moet ook in ontwrigtende innovasie strategieë belê. Die innovasie teorieë bepaal dat opkomende markte die beste plek is om ontwrigtende innovasies te ontwikkel. Verskeie multi-nasionale maatskappye het al egter misluk om die belowende massa-markte binne opkomende markte te penetreer. Die rede is dat baie van hul globale strategieë mik na die ontwikkelde marksegmente binne-in daardie ontwikkelende markte en nie op die massa-markte aan die BVP nie. Om tegnologieë te ontwikkel vir die BVP verg plaaslike strategieë en, onder andere, ‘n kwantum sprong in die prys-werkverrigting verhouding. In baie gevalle kan dit ‘n daling in prys wees met soveel as ‘n faktor van tien. Indien suksesvol, bestaan die moontlik dan om dié tegnologieë terug te vat om gevorderde markte te ontwrig. Daar is egter ook ‘n humanitêre sy van die saak. Elke jaar is armoede indirek verantwoordelik vir miljoene sterftes in Afrika en baie oorlewendes leef in haglike omstandighede sonder noodsaaklike goedere en dienste, terwyl hulle uitgebuit word deur ‘n paar informele besighede. Die BVP bied aan die gevorderde ekonomieë van die wêreld nie net die geleentheid om baie geld te maak nie, maar ook die geleentheid om op só ‘n manier besigheid te doen dat dit arm mense kan help om ‘n inkomste te verdien of selfs inkomste te genereer. Dit kan op baie verskillende maniere help om dié mense te lig vanuit armoede. Dit wil voorkom asof besigheid en die moontlikheid om welvaart te skep die mees effektiewe manier is om die BVP te lig vanuit armoede. Die BVP het egter die kennis, verantwoordelike besigheids-sin en die onderhandelingskrag van multi-nasionale besighede nodig om te verseker dat besigheid in dié markte op ‘n verantwoordlike, volhoubare manier geskied. / ENGLISH ABSTRACT: In today’s world of business two opposite poles exist. On the one end is the world’s developed economy that has become saturated to such an extent that double digit growth has become a scarcity. However despite this fact continuous pressure is being placed on managers to grow their companies at a rate that will ensure an increase in shareholder value. On the other end are two thirds of the world’s population (4 billion people), the base of the economic pyramid (BOP) that is desperately poor and underserved in terms of basic needs, let alone luxury items. Double digit growth is achievable in these markets with the only competition being non-consumption in many cases. This research looks at how these two poles can be integrated into a mutually beneficial relationship. Companies could ensure sustaining levels of growth if there is an equal focus on sustainable as well as disruptive innovations. The case made in this research report is that companies cannot afford to focus on sustainable innovations alone, but need to invest in disruptive innovations as well. The innovation theories hold that the best place to test and develop disruptive innovations is in emerging markets. However too many multinational corporations (MNCs) have failed to access the illusive mass markets within emerging economies. It seems that their strategies were focussed on the developed segments within those emerging markets and not on the masses that constitute the BOP. Developing technologies for the BOP requires a local strategy and, amongst other things, a quantum leap in the price-performance ratio - in many cases a typical reduction in price by a factor of ten. The possibility then exists to take these solutions back to disrupt developed markets. There is a human aspect to this scenario as well. Poverty has indirectly been a cause of millions of people dying in Africa every year and many survivors live in poor conditions without basic services and being exploited by few informal businesses. The BOP offers an opportunity for the developed economies, not only to make a lot of money, but also to innovate their products and business models to empower poor people to start earning and generating income. This will in many ways help them to rise from poverty. It seems that growing business and generating wealth might be the most efficient vehicle to help lift the BOP from poverty. However, the BOP needs MNCs to bring their power and knowledge to these markets to ensure that it is done responsibly and in a sustainable manner.
226

企業破壞式創新程度與績效:台灣資訊電子業之實證研究 / Innovation disruptiveness and firm performance:A Study of Taiwan information technology industry

李垂泰, Eric Lee Unknown Date (has links)
摘要 本研究之目的在透過實政研究方法回答兩個關於破壞式創新研究問題,首先,產業延續性創新速度與企業破壞式創新程度之關係為何?其次企業的破壞式創新程度對其績效影響為何?本研究透過文獻探討,設計問卷並以台灣資訊電子產業公開發行之企業進行問卷調查蒐集初級資料。經由統計分析,本研究得出兩重大發現,首先,產業延續性創新速度與企業破壞式創新程度為負相關,而企業對新產品開發專案之決策資訊充足要求程度會弱化此關係。其次,企業規模與財務績效有正相關,而企業破壞式創新程度會強化此關係。 / The aim of this research is to answer two research questions about disruptive innovation with empirical methodology. First, what is the relation between industrial sustaining innovation rate and a company's disruptiveness. Second, does a company’s disruptiveness impact firm financial performance? By collecting primary data, this research developed the questionnaire based on literature review and collected data from the publicly-listed companies in the Taiwan IT industry. With statistic analysis, this research has two significant findings. First, industrial sustaining innovation rate has a negative impact on an incumbent company’s disruptiveness and the accuracy of company investment decision on NPD project will weaken this relation. Second, firm size has a positive impact on firm financial performance and a company's disruptiveness will strengthen this relationship.
227

破壞性創新模式之研究 / The Research of Disruptive Innovation Model

李書賢 Unknown Date (has links)
Christensen提出「破壞性創新」,解釋為什麼許多過去成功的企業,在遭遇到新市場或新科技的衝擊時,常常失去他們在業界的領導地位。然而,相當可惜的是,Christensen只提出的「破壞性創新」的概念,卻沒有清楚地定義什麼才算是「破壞性創新」。 本研究將建立一個具有「價值創新程度」、「市場創新程度」、「市場成長速度」,三個構面的模型,用來決定是否為「破壞性創新」的要件。在每個構面下,分別發展出更細微的判斷指標,使模型更趨於完善。本研究更深入訪談三間具創新能力、其產品在市面上都有一定知名度的公司創辦、負責人,就本研究的三個構面,分別以其公司的創新產品做出對應的回應。最後統整出這些創新產品在這些構面的相似性。 / Christensen proposed the concept of "disruptive innovation" to explain why the established firm always failed when facing new market of new technology. However, Christensen just proposed the idea of "disruptive innovation", but he didn't clearly define what "disruptive innovation" is. This research established a model including three dimensions: value innovative ability, market acceptability, and market innovative ability, to determine if it is disruptive innovation. There are some criteria under the three dimensions. This research also interviewed the persons in charge innovative products, which is very popular in the market, in three innovative companies. They reposed according to the three dimensions. Some similarities of the three innovative products are concluded.
228

Relations prédictives entre traits de personnalité, attitudes parentales et comportements perturbateurs : un modèle transactionnel de l'enfance à l'adolescence

Carignan, Véronique 08 1900 (has links)
Plusieurs études ont confirmé que certains traits de personnalité des enfants et certaines attitudes et pratiques éducatives de leurs parents constituaient des prédicteurs des comportements perturbateurs à l’adolescence. Toutefois, la majorité des recherches ont adopté un modèle postulant des relations directes et indépendantes entre ces facteurs de risque et des comportements perturbateurs. Le modèle transactionnel est plus réaliste parce qu’il postule des relations bidirectionnelles à travers le temps entre ces deux facteurs de risque. Cette étude visait à vérifier l’existence de relations bidirectionnelles entre les traits de personnalité des enfants et les attitudes parentales de leur mère mesurés à deux reprises durant l’enfance (à 6 et 7 ans), pour ensuite vérifier si les comportements perturbateurs des enfants mesurés à l’adolescence (15 ans) pouvaient être prédits par les traits de personnalité et les attitudes parentales. Les données utilisées proviennent d’une étude longitudinale prospective de 1000 garçons et 1000 filles évalués à plusieurs reprises de la maternelle à l’adolescence. Six traits de personnalité des enfants et deux attitudes parentales ont été évalués par les mères à 6 et 7 ans, alors que les diagnostics de troubles perturbateurs (trouble des conduites, trouble oppositionnel avec provocation, trouble de déficit de l’attention/hyperactivité) ont été évalués par les adolescents et les mères à 15 ans. Afin de tester les hypothèses de recherche, des analyses de cheminement (« path analysis ») multi-groupes basées sur la modélisation par équations structurales ont été utilisées. Les résultats ont confirmé la présence de relations bidirectionnelles entre les traits de personnalité de l’enfant et les attitudes parentales durant l’enfance. Toutefois, peu de relations étaient significatives et celles qui l’étaient étaient de faible magnitude. Les modèles multi-groupes ont par ailleurs confirmé la présence de relations bidirectionnelles différentes selon le sexe. En ce qui concerne la prédiction des comportements perturbateurs, de façon générale, surtout les traits de personnalité et les attitudes parentales à 6 ans (plutôt qu’à 7 ans) ont permis de les prédire. Néanmoins, peu de relations prédictives se sont avérées significatives. En somme, cette étude est une des rares à avoir démontré la présence de relations bidirectionnelles entre la personnalité de l’enfant et les attitudes parentales avec des données longitudinales. Ces résultats pourraient avoir des implications théoriques pour les modèles explicatifs des comportements perturbateurs, de même que des implications pratiques pour le dépistage des enfants à risque. / Several studies confirmed that some children’s personality traits and parental attitudes constitute risk factors of later disruptive behaviors during adolescence. However, most research has adopted a model postulating direct and independent relations between these risk factors and disruptive behaviors. The transactional model is more realistic because it postulates bidirectional relations over time between these two risk factors. Even though the transactional model is popular amongst researchers, there is in fact very little research formally demonstrating the existence of bidirectional relations with longitudinal data during childhood. This study aimed at verifying the existence of bidirectional relations between children’s personality traits and their mothers’ parental attitudes measured on two occasions during childhood (ages 6 and 7), and later verifying if individuals’ disruptive behaviors during adolescence (age 15) could be predicted by children’s personality traits and parental attitudes. The data came from a prospective longitudinal study of 1000 boys and 1000 girls assessed on various occasions from kindergarten through adolescence. Six children’s personality traits and two parental attitudes were assessed by mothers at ages 6 and 7, while the disruptive behavior diagnostics (conduct disorder, oppositional defiant disorder, attention deficit hyperactivity disorder) were assessed by adolescents ant their mothers at age 15. In order to test the research hypotheses, multiple-group path analyses based on structural equations modeling were used. The results confirmed the presence of bidirectional relations between children’s personality traits and parental attitudes during childhood. Nevertheless, there were few significant relations and most of them were of small size. Multiple-group models also confirmed the presence of gender-specific bidirectional relations. With regards to the prediction of disruptive behaviors, especially children’s personality traits and parental attitudes at age 6 (rather than age 7) were predictive. Nonetheless, few predictive relations turned out to be significant. Overall, this study is one of the rare to demonstrate the presence of bidirectional relations between children’s personality and parental attitudes with longitudinal data. These results could have theoretical implications for explanatory models of disruptive behaviors, as well as practical implications for early screening of children at risk.
229

Strategisk, kulturell och kundbaserad affärsmodellsutveckling : Bredbandsmarknaden under disruptiv förändring

Martinez, Oscar, Wenner, Veronica January 2017 (has links)
No description available.
230

Etude des xénorécepteurs CAR (NR1I3) et PXR (NR1I2) : identification d’un nouveau gène cible de CAR (SPOT14) et d’une nouvelle isoforme de PXR (PXR-small) dans l'hépatocyte humain / Study of the CAR (NR1I3) and PXR (NR1I2) : identification of a new CAR target gene (SPOT14) and a new PXR isoform (PXR-small) in human hepatocyte

Breuker, Cyril 16 December 2010 (has links)
CAR (Constitutive Androstane Receptor, NR1I3) et PXR (Pregnane X Receptor, NR1I2) sont deux récepteurs nucléaires dédiés à la reconna issance et à l'élimination de molécules lipophiles potentiellement toxiques pour l'organisme. Ces facteurs de transcription peuvent être activés par des ligands d'origines et de structures diverses (médicaments, polluants environnementaux, produits de l'alimentation et de phytothérapies). L'activation de ces récepteurs entraîne l'expression des gènes majeurs de la fonction de détoxication entéro-hépatique (CYP450, transférases, transporteurs) permettant l'élimination de ces toxiques. Dans ce travail, nous avons dans un premier temps 1) montré que CAR contrôle l'expression de Spot14, une protéine pro-lipogénique, et 2) nous avons identifié une nouvelle isoforme de PXR (PXR-small) codant uniquement pour le domaine de liaison des ligands de PXR. Nous avons pu déterminer les origines de transcription par 5'-RACE PCR et montrer que PXR-small représente environ 10% de l'ensemble des transcrits de PXR dans le tissu hépatique sain par une approche de PCR qua ntitative. Nous avons pu détecter sa présence par western-blot sur des extraits de protéines nucléaires issus de tissus hépatiques et de lignées cellulaires hépatiques. Par des expériences de gel retard, nous avons observé que cette nouvelle isoforme tronquée, qui ne code que pour le LBD de PXR, ne peut pas se lier à l'ADN. Des expériences de gènes rapporteurs suggèrent que cette isoforme se comporte comme un dominant négatif de PXR. Enfin, la présence d'un ilot CpG situé juste en amont de PXR-small suggère que cette nouvelle isoforme pourrait être régulée épigénétiquement par méthylation, notamment dans les cellules tumorales. / CAR (Constitutive Androstane Receptor, NR1I3) and PXR (Pregnane X Receptor, NR1I2) are two nuclear receptors devoted to the recognition and elimination of lipohilic molecules potentially toxic to the body.These transcription factors can be activated by ligands of different origins and structures (drugs, environmental pollutants, food products and herbal medicine...). The activation of these receptors leads to the expression of major genes of the detoxification process (CYP450, transferases, transporters) leading to the elimination of these toxics. In this work, we 1) showed that Spot14, a pro-lipogenic protein, is a target gene of CAR, then 2) we identified a novel isoform of PXR (PXR-small), coding only the ligand binding domain of PXR. By using 5'-RACE PXR, we established the origins of transcription of PXR-small and by quantitative PCR we observed that PXR-small represents about 10% of all PXR transcripts in human liver. By using western blo t, we detect its presence on nuclear protein extracts from liver tissues and hepatic cell lines. In Electromobility shift essays experiments, we observed that PXR-small cannot bind to DNA, while reporter essay experiments suggest that this isoform acts as a dominant negative of PXR. Finally, the presence of a CpG island just upstream of PXR-small suggests that this novel isoform might be regulated epigenetically by methylation, more particularly in tumor cells.

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