排序方式: 共有54条查询结果,搜索用时 15 毫秒
31.
32.
This paper makes the case for a broadening of conceptual vocabularies in security studies by extending the sub-discipline’s predominantly geopolitical focus to the ‘geosocial’. Based on a review of work on human security and of feminist and anthropological research on (in)security and violence, we argue that there remains a need for further conceptual development to which geosocial approaches can make a significant contribution. They move us beyond compartmentalisation towards understanding social relations as a key medium through which connections between different forms of (in)security are forged. This prompts the mapping of a wider kaleidoscope of intersecting security issues, experiences, practices, subjects and topographies that include, but are not exhaustively explained by, geopolitical and geoeconomic processes. Drawing on findings from a participatory research project conducted with marginalised young people in Leipzig (Germany) between 2014 and 2015, we argue for greater attention to four issues that are rarely thematised in security studies and which geosocial approaches bring more squarely into focus: 1) social relations as a key connective tissue through which different dimensions of (in)security are entangled and through which these entanglements are given shape; 2) social relations as sources of security and insecurity; 3) security practices as including the emotional and practical labour invested in sustaining, moulding or dealing with the breakdown of social relations; and 4) the topographic stretching and hybridisation of social relations that furnishes not just cultures of fear but can also generate greater senses of security. 相似文献
33.
Kathrin Glau 《Finance and Stochastics》2016,20(4):1021-1059
The challenge to fruitfully merge state-of-the-art techniques from mathematical finance and numerical analysis has inspired researchers to develop fast deterministic option pricing methods. As a result, highly efficient algorithms to compute option prices in Lévy models by solving partial integro-differential equations have been developed. In order to provide a solid mathematical foundation for these methods, we derive a Feynman–Kac representation of variational solutions to partial integro-differential equations that characterize conditional expectations of functionals of killed time-inhomogeneous Lévy processes. We allow a wide range of underlying stochastic processes, comprising processes with Brownian part as well as a broad class of pure jump processes such as generalized hyperbolic, multivariate normal inverse Gaussian, tempered stable, and \(\alpha\)-semistable Lévy processes. By virtue of our mild regularity assumptions as to the killing rate and the initial condition of the partial integro-differential equation, our results provide a rigorous basis for numerous applications in financial mathematics and in probability theory. We implement a Galerkin scheme to solve the corresponding pricing equation numerically and illustrate the effect of a killing rate. 相似文献
34.
Vivek K. Velamuri Dirk Schneckenberg Jörg B. A. Haller Kathrin M. Moeslein 《R&D Management》2017,47(4):501-521
The proliferation of innovation contests has fostered community-based idea evaluation as an alternative to expert juries to filter and select new product concepts at the fuzzy front end of corporate R&D innovation. We refer to this phenomenon as open evaluation, as all registered participants can engage in jury activities like voting, rating, and commenting. While previous research on innovation contests and user engagement includes participant-based evaluation, the investigative focus so far has not been on this phenomenon. Access to jury activities in open evaluation practice contradicts innovation theory, which recommends careful selection procedures to establish expert juries for assessing new product concepts. Additionally, little is known about contingency factors that influence the performance and acceptance of open evaluation's results. To address these two questions on the objectives and contingency factors for open evaluation of new product concepts, this study applies exploratory multiple-case research of open evaluation in nine innovation contests. Data collection encompassed expert interviews and complementary sources of evidence. Results indicate that firms pursue six distinct objectives to support participant-based generation and selection of new concepts. In addition, eight contingency factors influence the performance of open evaluation and the acceptance of its results. Finally, results showed open evaluation output to efficiently complement jury decisions in filtering and selecting ideas for new product development. 相似文献
35.
Wirtschaftsdienst - Die Pandemie stellt einen Einschnitt in der positiven Entwicklung des öffentlichen Verkehrs dar. Die Furcht der Nutzer:innen vor Infektionen könnte einen nachhaltigen... 相似文献
36.
Hans Ulrich Buhl Maximilian Röglinger Stefan Stöckl Kathrin S. Braunwarth 《Business & Information Systems Engineering》2011,3(3):163-172
There is no doubt that at least since the 1990s process orientation has evolved into one of the central paradigms of organizational
design. Since then, all process management subtasks have matured. Process management decisions, however, lack economic foundation.
They are usually based on qualitative or technical criteria or on plausibility considerations that do not necessarily comply
with typical objectives in a market economy. Consequently, design alternatives are hardly comparable and an integrated valuation
of a company’s assets is impossible. The status quo is astonishing for several reasons: First, process management decisions
usually imply investment projects with different risk/return positions and capital tie-up. Second, the need for designing
processes according to their contribution to corporate objectives has been explicated repeatedly. Third, the paradigm of value-based
management is an accepted theoretical framework from economic research that enables to consistently valuate the risk/return
effects of decisions across functional areas, hierarchy levels, and asset classes. This suggests the hypothesis that process
management in general as well as the goal orientation of process management decisions in particular have evolved almost independently
of value-based management. In the paper at hand, this hypothesis is confirmed based on a sample of process management publications.
We therefore explicate the research gap as regards value orientation in process management. In order to bridge the gap between
value-based management and process-oriented organizational design, we transfer economically well-founded objective functions
to process management decisions. 相似文献
37.
Kathrin S. Braunwarth Matthias Kaiser Anna-Luisa Müller 《Business & Information Systems Engineering》2010,2(1):29-39
In the context of value and customer orientation there are various requirements concerning the process – especially in insurance companies: processes are meant to be standardized, automated, and flexible. It is in question whether a fast and cheap automated processing is preferred to manual handling. For which claims and which process steps is it of economic value to have the flexibility and the competence and ability to solve problems of human operators at your disposal? Various combinations, representing different degrees of automation, are possible. The different degrees of automation for the processing of an insurance claims are compared and resulting cash flows are determined. It is essential to include all consequences that can be attributed to a single process and to consider customer reactions and restrictions to the capacity of processing. Instead of using heuristic rules to decide on automation in practice, here the decision is flexible and depends on the given situation. Viewing an aggregated number of insurance claims it is possible to deduce information about the performance of the process. The model is exemplarily illustrated with help of a part of the process for handling own damage glass claims. 相似文献
38.
John Bessant Bettina Von Stamm Kathrin M. Moeslein Anne‐Katrin Neyer 《R&D Management》2010,40(4):345-356
A key challenge in managing innovation is to explicitly identify ways to improve an organization's performance with regard to discontinuous innovation. However, discontinuous innovation does not fit the existing ‘frame of reference’ and hence requires a reframing of the traditional ways of innovating within the organization. More specifically, previous research shows that practices that work well in the context of incremental innovation do not work in the context of discontinuous innovation. Thus, the aim of this paper is to explore innovation practices that enable organizations to select innovation projects, which are ‘outside the box’ of its prior experience, i.e. are discontinuous in nature. Building on the experience of more than 150 firms across 12 countries, we have identified nine innovation practices for the selection of discontinuous innovation; these can be grouped into three clusters: enable, engage and experience. In sum, we identify that an organization needs to acknowledge that its choice to engage in discontinuous innovation will have consequences for the innovation practices chosen to select which discontinuous projects to carry forward. 相似文献
39.
Charles H. Cho Kathrin Bohr Tony Jaehyun Choi Katharine Partridge Jhankrut Mukesh Shah Ada Swierszcz 《Accounting Perspectives》2020,19(3):181-204
This study examines the progress Canada's largest companies are making in their environmental, social, and governance (ESG) disclosures. Given the introduction of the Global Reporting Initiative (GRI) Standards and the United Nations Sustainable Development Goals (UN SDGs) as well as the issuance of the Task Force on Climate‐Related Financial Disclosures (TCFD) recommendations, our research reflects the uptake of these guidance documents by both mature and new reporters. Our analysis suggests that challenges persist—processes and progress often fail to reach investors as they are “lost in translation” when issued through third‐party ESG information providers, and reporters are also pressured to respond to a myriad of requests for information from rating and reporting agencies. Nevertheless, we note that Canada has new reporting sectors that must mature to survive the scrutiny of the markets and also hope that stock markets will respond to the recent announcement by the 181 CEOs of the U.S. Business Roundtable, who committed to lead their companies for the benefit of all stakeholders—customers, employees, suppliers, communities, and shareholders. Overall, we believe that our research will provide food for thought for companies interested in continuous improvement. 相似文献
40.
Internationally‐investing Islamic equity funds from developed Islamic and non‐Islamic markets perform in general similar to the market. However, analyzing different market conditions, we provide evidence that funds domiciled in Islamic markets outperform their peers and funds from non‐Islamic markets during market turmoil, irrespective of the applied performance measurement model. We suggest that this outperformance is owed to the expertise of fund managers from developed Islamic markets who operate in a financial environment that is driven by Islamic principles. Our results are robust with respect to the standard Fama‐French three‐factor and four‐factor models as well as to the novel five‐factor model. 相似文献