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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.
511

Conceptualising a Procurement 4.0 Model for a truly Data Driven Procurement / Konceptualisering av en 4.0 modell för en datadriven inköp

Aldherwi, Aiman January 2021 (has links)
Purpose - Procurement is an integrated part of the supply chain and crucial for the success of manufacturing. Many organisations have already started the digitalisation of their manufacturing processes using Industry 4.0 technologies and consequently trying to understand how this would impact the procurement function. The research purpose is to conceptualize a procurement of 4.0 model for a truly data driven procurement. Two research questions were proposed to address the model from digital capabilities and sustainability preceptive. Design/Methodology/approach - This study is based on a systematic literature review. A method of reviewing the literature and the current research for the propose of conceptualizing a procurement 4.0 model. Findings - The findings from the literature review contributed to the development of a proposed procurement 4.0 model based on Industry 4.0 technologies, applications, mathematical algorithms and procurement processes automation. The model contributes to the research field by addressing the gap in the literature about the lack of visualization and conceptualization of procurement 4.0. Originality/Value - The current literature discusses the advantages, implementation and impact of individual or a group of industry 4.0 technologies and applications on procurement but lacks visualization of the transformation process of combining the technologies to enable a truly data driven procurement. This research supports the creation of knowledge in this area. Practical Implementation /Managerial Implications - The proposed model can support managers and digital consultants to have practical knowledge from an academic perspective in the area of procurement 4.0. The knowledge from the literature and the systematic literature review is used to create knowledge on procurement 4.0 applications and analytics taking in to consideration the importance of visibility, transparency, optimization and the automation of the procurement function and its sustainability. / Syfte - Upphandling är en integrerad del av supply chain och avgörande för tillverkningens framgång. Många organisationer har redan börjat digitalisera sina tillverkningsprocesser med hjälp av Industry 4.0-teknologier och försöker därför förstå hur detta skulle påverka upphandlingsfunktionen. Målet med studien är att konceptualisera en upphandling av 4.0-modellen för en verkligt datadriven upphandling. Två forskningsfrågor föreslogs för att ta itu med modellen från digital kapacitet och hållbarhet. Design / metod / tillvägagångssätt - Denna studie baseras på en systematisk litteraturstudie. En metod för att granska litteraturen och den aktuella forskningen för att föreslå konceptualisering av en upphandlings 4.0-modell. Resultat - Resultaten från litteraturstudien bidrog till utvecklingen av en föreslagen upphandlings 4.0-modell baserad på Industry 4.0-teknologier, applikationer, matematiska algoritmer och automatisering av upphandlingsprocesser. Modellen bidrar till forskningsområdet genom att ta itu med klyftan i litteraturen om bristen på visualisering och konceptualisering av upphandling 4.0. Originalitet / värde - Den nuvarande litteraturen diskuterar fördelarna, implementeringen och effekten av individer eller en grupp av industri 4.0-teknologier och applikationer på upphandling men saknar visualisering av transformationsprocessen för att kombinera teknologierna för att skapa en verklig datadriven upphandling. Denna forskning stöder skapandet av kunskap inom detta område. Praktisk implementering / chefsimplikationer - Den föreslagna modellen kan stödja chefer och digitala konsulter att ha praktisk kunskap ur ett akademiskt perspektiv inom området upphandling 4.0. Kunskapen från litteraturen och den systematiska litteraturstudien används för att skapa kunskap om inköp 4.0 applikationer och analyser med beaktande av vikten av synlighet, transparens, optimering och automatisering av upphandlingsfunktionen och dess hållbarhet.
512

Corporate Structure, Governance and Strategic Decisions

Kim, Moo Sung January 2013 (has links)
After Shleifer and Vishny (1997) introduce agency conflicts between controlling insiders and outside investors, a new research trend has emerged, which focuses on controlling insiders' incentives for opportunistic behavior and assumes that controlling insiders may want more opaque corporate information environment to mask their pursuance of private control benefits. However, there are still open issues on the topic of how different controlling shareholder types, such as business group owners, institutional owners and family owners, each affect corporate information environment. Therefore, this study aims to investigate the different roles of controlling ownership types on corporate informational environment. Chapter 1 examines earnings management behaviors of firms affiliated with business groups, using a unique dataset for South Korean business groups (chaebols) between 1993 and 2007. Contrary to predictions of agency theory, we find that group firms are actually less engaged in earnings management than non-group firms, and we offer controlling family's concern for group reputation as an explanation. Group firms are also shown to use more real cash flow-based earnings management than discretionary accruals management. The results are robust with respect to the method of control sample construction, alternative models and group definitions, and endogeneity. There is also evidence that corporate reforms undertaken in the aftermath of the Asian financial crisis, including regulations on auditing and combined group-wide financial reports, appear to have mitigated the use of earnings management by group firms. These results are consistent with the notion that concerns for group reputation may mitigate agency-based opportunistic earnings management behaviors. Chapter 2 examines whether domestic and foreign institutional investors improve corporate transparency in the presence of controlling benefits. We construct the transparency index, as well as its sub-indices based on firm- and market-level information, using group and non-group firm-level data for South Korea between 2001 and 2007. The results show that foreign institutional ownership improves overall corporate transparency, while the effects of domestic institutional ownership are insignificant. This is traceable to sub-index findings that foreign investors are associated with improvement in both firm-level and market-level transparency, while domestic institutional investors are associated with a decrease in firm-level transparency, but with an increase in market-level transparency, which may offset each other. The effects are non-linear for domestic institutional ownership, while those of foreign institutional ownership remain monotonic. These findings are consistent with the notion that domestic institutional investors are conflicted by their role as monitors to boost transparency and by their desire to pursue control benefits by exploiting insider information and promoting selective transparency. Foreign investors, lacking such controlling benefit opportunities, tend to promote general transparency. Chapter 3 examines how the dynamics between family owners and market participants, such as analysts, market makers and investors determine a firm's overall transparency, using South Korean data between 2001 and 2007. Our results show that family ownership has a positive relation with earning-based transparency, while it has a negative relation with market-based transparency. As a result, family ownership seems to have no impact on overall transparency. However, an analysis based on sorting of family ownership shows that firms with less than 30% family ownership show a positive significant relation to overall transparency, but firms with family ownership of 30% or higher have an insignificant relation with overall transparency. This discrepancy may exist because family owners may want to promote corporate transparency through better earning-based information dissemination, but market participants discount such efforts and this discount increases as family ownership increases. / Business Administration/Finance
513

Essays on Insurer’s Transparency and Risk Management Practice

Choi, Myeonghun January 2019 (has links)
This dissertation consists of two topics. Chapter 1 explores the relationship between firm transparency and managerial behaviors of the U.S. Property-Casualty (P&C) insurers. Using data between 1996 and 2015, we test whether credit rating agencies (CRAs) provide useful information to monitor insurers’ loss reserve management behaviors as watchdogs. In addition, we investigate how insurers recognize the rating difference given by different CRAs. We find that holding a rating does not necessarily affect insurers’ reserve management behaviors. However, loss reserve estimation tends to be more accurate as more ratings are given to an insurer. Such findings suggest that multiple CRAs stimulate insurers to accurately estimate their reserves through the enhanced monitoring function. We also find a marginal impact of rating difference on an insurer’s loss reserve estimation. Firms with rating difference tend to underestimate their loss reserves. Nevertheless, this does not considerably deteriorate the reserve forecast accuracy. Although the Sarbanes–Oxley Act (SOX) aims at regulating publicly traded firms, it seems to affect over the market. Our empirical results show that insurers’ reserve estimation accuracy is improved after the enactment of the SOX. Moreover, the enactment of SOX alleviates an under-reserving behavior of firms with rating difference. Chapter 2 investigates the derivative practice of the U.S. life insurers. Over the last two decades, derivatives have been used extensively as a risk management tool in the financial market. In the U.S. insurance market, life insurers have accounted for over 95% of total derivative transactions, a proportion much higher than that in other countries. However, there are only a few prior studies examining the practical use of derivatives in the U.S. life insurance market. In addition, several limitations exist in terms of data they used (single-year, outdated, and inaccurate). In this study, we compile accurate derivative transaction data by taking a close look at the underlying asset and the traded market. We then examine the determinants of derivative (swap in particular) participation and the extent of transactions using samples from 2001 to 2015 which includes major events such as the U.S. financial crisis and the Dodd-Frank Act. We find that the determinants of derivative/swap participation are different from those of transaction volumes. We also find that the impact of the financial crisis on derivative usage is very limited in the life insurance market. However, the enactment of the Dodd-Frank Act not only reduces the likelihood of swap participation but also stagnates the growth of the swap transaction volumes, while the total derivative transaction volumes are significantly increased. Such findings indicate that the costs of the new regulation outweigh its benefits, due to the inefficient and inadequate regulatory changes. / Business Administration/Risk Management and Insurance
514

Establishing Verifiable Trust in Collaborative Health Research

Sutton, Andrew January 2018 (has links)
Collaborative health research environments usually involve sharing private health data between a number of participants, including researchers at different institutions. Inclusion of AI systems as participants in this environment allows predictive analytics to be applied on the research data and the provision of better diagnoses. However, the growing number of researchers and AI systems working together raises the problem of protecting the privacy of data contributors and managing the trust among participants, which affects the overall collaboration effort. In this thesis, we propose an architecture that utilizes blockchain technology for enabling verifiable trust in collaborative health research environments so that participants who do not necessarily trust each other can effectively collaborate to achieve a research goal. Provenance management of research data and privacy auditing are key components of the architecture that allow participants’ actions and their compliance with privacy policies to be checked across the research pipeline. The architecture supports distributed trust between participants through a Linked Data-based blockchain model that allows tamper-proof audit logs to be created to preserve log integrity and participant non-repudiation. To maintain the integrity of the audit logs, we investigate the state-of-the-art methods of generating cryptographic hashes for RDF datasets. We demonstrate an efficient method of computing integrity proofs that construct a sorted Merkle tree for growing RDF datasets based on timestamps (as a key) that are extractable from the dataset. Evaluations of our methods through experimental realizations and analyses of their resiliency to common security threats are provided. / Thesis / Master of Science (MSc) / Collaborative health research environments involve the sharing of private health data between a number of participants, including researchers at different institutions. The inclusion of AI systems as participants in this environment allows predictive analytics to be applied on the research data to provide better diagnoses. In such environments where private health data is shared among diverse participants, the maintenance of trust between participants and the auditing of data transformations across the environment are important for protecting the privacy of data contributors. Preserving the integrity of these transformations is paramount for supporting transparent auditing processes. In this thesis, we propose an architecture for establishing verifiable trust and transparency among participants in collaborative health research environments, present a model for creating tamper-proof privacy audit logs that support the privacy management of data contributors, and analyze methods for verifying the integrity of all logged data activities in the research environment.
515

Demographic Transparency to Combat Discriminatory Data Analytics Recommendations

Ebrahimi, Sepideh January 2018 (has links)
Data Analytics (DA) has been blamed for contributing to discriminatory managerial decisions in organizations. To date, most studies have focused on the technical antecedents of such discriminations. As a result, little is known about how to ameliorate the problem by focusing on the human aspects of decision making when using DA in organizational settings. This study represents an effort to address this gap. Drawing on the cognitive elaboration model of ethical decision-making, construal level theory, and the literature on moral intensity, this study investigates how the availability and the design of demographic transparency (a form of decisional guidance) can lower DA users’ likelihood of agreement with discriminatory recommendations of DA tools. In addition, this study examines the role of user’s mindfulness and organizational ethical culture on this process. In an experimental study users interact with a DA tool that provides them with a discriminatory recommendation. The results confirm that demographic transparency significantly impacts both recognition of the moral issue at hand and perceived proximity toward the subject of the decision, which in turn help decrease the likelihood of users’ approval of the discriminatory recommendation. Moreover, the results suggest that user’s mindfulness and organizational ethical culture enhance the positive impacts of demographic transparency. / Dissertation / Doctor of Philosophy (PhD)
516

Connecting Open Data With Transparency and Accountability to Promote Value Generation : A Case Study of Zambia

Hassanali, Anzee January 2022 (has links)
This research will examine how open data may be used and accessed as well as what role it plays in promoting transparency. Through this thesis, I aim to investigate how open data may be utilized to foster accountability and transparency, which would improve productivity and bring about social change. Transparency needs to be integrated not just into the systems of the ‘supply side’ or the party that is providing the information, but also into those of the users or ‘the demand side’ in order to be effective. Initiatives for transparency and accountability have emerged in the development context over the past ten years as a means of addressing democratic and developmental shortcomings.  The analysis is drawn from the existing literature around transparency and accountability initiatives and what is needed for it to be impactful. The author of this study has further examined this concept through interviews with professionals in the area of this data value chain in Zambia which has allowed for further analysis of this concept. The right data must first be disclosed for open data and transparency initiatives to result in accountability, this necessitates an awareness of the politics of data publication. Next it is important to have this data published with a ‘user centric’ frame. Further it is crucial for intermediaries to gather, analyze and make use of the data in order to create a system for accountability where by the institutions are enabled to provide better services and citizens are able to demand those services to enable value creation.
517

Solution processed PVB/mica flake coatings for the encapsulation of organic solar cells

Channa, I.A., Chandio, A.D., Rizwan, M., Shah, A.A., Bhatti, J., Shah, A.K., Hussain, F., Shar, Muhammad A., AlHazaa, A. 12 May 2021 (has links)
Yes / Organic photovoltaics (OPVs) die due to their interactions with environmental gases, i.e., moisture and oxygen, the latter being the most dangerous, especially under illumination, due to the fact that most of the active layers used in OPVs are extremely sensitive to oxygen. In this work we demonstrate solution-based effective barrier coatings based on composite of poly(vinyl butyral) (PVB)and mica flakes for the protection of poly (3-hexylthiophene) (P3HT)-based organic solar cells (OSCs)against photobleaching under illumination conditions. In the first step we developed a protective layer with cost effective and environmentally friendly methods and optimized its properties in terms of transparency, barrier improvement factor, and bendability. The developed protective layer maintained a high transparency in the visible region and improved oxygen and moisture barrier quality by the factor of ~7. The resultant protective layers showed ultra-flexibility, as no significant degradation in protective characteristics were observed after 10 K bending cycles. In the second step, a PVB/mica composite layer was applied on top of the P3HT film and subjected to photo-degradation. The P3HT films coated with PVB/mica composite showed improved stability under constant light irradiation and exhibited a loss of <20% of the initial optical density over the period of 150 h. Finally, optimized barrier layers were used as encapsulation for organic solar cell (OSC) devices. The lifetime results confirmed that the stability of the OSCs was extended from few hours to over 240 h in a sun test (65◦C, ambient RH%) which corresponds to an enhanced lifetime by a factor of 9 compared to devices encapsulated with pristine PVB. / Higher Education Commission of Pakistan through NED University of Engineering and Technology, Karachi, Pakistan and “The APC was funded by Deanship of Scientific Research, King Saud University for funding through Vice Deanship of Scientific Research Chairs”.
518

Peacekeeping and Critical Theory.

Pugh, Michael C. January 2004 (has links)
no / A deconstruction of the role of peace support operations suggests that they sustain a particular order of world politics that privileges the rich and powerful states in their efforts to control or isolate unruly parts of the world. As a management device it has grown in significance as the strategic imperatives of the post-industrialized, capitalist world have neutered the universal pretensions of the United Nations. Drawing on the work of Robert Cox and Mark Duffield, this essay adopts a critical theory perspective to argue that peace support operations serve a narrow, problem-solving purpose - to doctor the dysfunctions of the global political economy within a framework of liberal imperialism. Two dynamics in world politics might be exploited to mobilize a counter-hegemonic transformation in global governance. First, a radical change in the global trade system and its problematic institutions will create opportunities to emancipate the weak from economic hegemony. Second, future network wars are likely to require increasingly subtle and flexible teams, similar to disaster relief experts, to supply preventive action, economic aid and civilian protection. This might only be achieved by releasing peace support operations from the state-centric control system, and making them answerable to more transparent, more democratic and accountable multinational institutions.
519

Access to environmental justice to non-disputing parties in Investment Arbitration

Gonzales Reyes de Bergfeldt, Martha Ingrid January 2023 (has links)
Defining environmental justice in the context of investment arbitration is a challenge. This question arises primarily in circumstances in which foreign investment has an actual or potential impact on the host state population's health, environment, or socio-cultural values. Under normal circumstances, the right of access to justice should be guaranteed by the law and the justice system of the host state. However, the right of access to justice declines when the controversy is taken to investment arbitration.  While the problem of environmental protection has been addressed in ISDS from the State perspective and its power to regulate, the rights of non-disputing parties and their legitimacy have been relegated. Awards in investment arbitration qualify as environmental decisions. Therefore, more than the traditional approach to Amicus participation in dispute resolution proceedings is needed under the perspective of procedural environmental rights recognised under several international environmental law instruments. This includes the scope of access to the information generated within the arbitration procedure, which should be available proactively and the possibility of remedies when there is a breach of environmental obligations of the investor who brings up its claim in the Investor-State Dispute Settlement system. To address this issue, developing a new model that considers environmental justice as part of investment arbitration is needed to achieve greater consistency and procedural certainty while safeguarding access to environmental justice.
520

Öppenhet och lobbying : Organiserade intressens strategier för att påverka revisionen av Öppenhetsregistret

Ingison, Linus January 2024 (has links)
Denna uppsats undersöker hur lobbyorganisationer presenterar sina åsikter i EU, specifikt i kontexten av revideringen av öppenhetsregistret 2016–2021. Undersökningen byggs kring en teoretiskt grund i lobbying och inramning och förankras till tidigare forskning om att lobbyorganisationers typ har inverkan på dess val av inramning. Genom en kvalitativ innehållsanalys på ett urval av ställningstaganden från idédrivna organisationer, sektionsföreningar, och företag finner uppsatsen att det verkar som att olika lobbyorganisationer kommer att rama in sina ställningstaganden utifrån särskilda sätt, vilket stödjer tidigare forskningshypoteser. Idédrivna föreningar har en tendens att an-vända sig av inramningar av en generisk, eller allmän, karaktär. Sektionsföreningarna och företagen skiljer sig från de idédrivna föreningarna genom att deras inramningar har en specifik karaktär. Skillnaden mellan sektionsföreningarna och företagen ligger i en nyansskillnad mellan vilken typ av organisation de förankras av.

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