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161.
Wolfgang Härdle Alexander Korostelev Camille Logeay Eckhard Platen 《Quantitative Finance》2013,13(1):81-92
The analysis of diffusion processes in financial models is crucially dependent on the form of the drift and diffusion coefficient functions. A new model for a stock market index process is proposed in which the index is decomposed into an average growth process and an ergodic diffusion. The ergodic diffusion part of the model is not directly observable. A methodology is developed for estimating and testing the coefficient functions of this unobserved diffusion process. The estimation is based on the observations of the index process and uses semiparametric and non-parametric techniques. The testing is performed via the wild bootstrap resampling technique. The method is illustrated on S&P 500 index data. 相似文献
162.
This study examined the acceptability and perceptions of traditionally prepared maize meal porridge, cooked from commercial roller-mill white maize meal and hammer-mill white and yellow maize meal (with and without fibre), among female Tsonga consumers in Giyani in Limpopo Province, South Africa. The study used sensory evaluation tests, followed by focus group discussions to gather supportive information about consumer attitudes, perceptions and practices regarding the consumption of maize meal porridge prepared from these maize meal types. Giyani consumers preferred commercial roller-mill white sifted fortified and white super-fortified maize meal, but, contrary to popular belief, were also willing to accept hammer-mill yellow maize meal, mainly for its nutritional value. 相似文献
163.
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165.
Gebhard Kirchgässner 《Wirtschaftsdienst》2013,93(3):198-203
After providing some examples of contradictory economic policy advice, we characterise different conceptions of policy advice. This is possible because, in many situations, neither economic theory nor empirical analyses provide unambiguous answers to policy questions. Thus, contradictory advice by different economists is often possible without violating scientific standards. Thus, in the process of seeking policy advice, politicians and interest groups will engage scientists with similar political ideologies. In this situation, the objectivity of political advice is still possible, but only if there is an open discussion and, in the case of empirical analyses, if data are available for re-estimations. 相似文献
166.
E. Keillänen 《Scandinavian actuarial journal》2013,2013(1):35-47
Abstract Die in der Versicherung minderwertiger Leben angewendeten hypothetischen Sterblichkeitstafeln zerfallen ihrem Klassifizierungsgrunde nach in zwei Gruppen: die Klassifizierung gründet sich 1:0 auf die Art der Minderwertigkeitsursache, 2:0 auf den geschatzten Grad der Minderwertigkeit. 相似文献
167.
This paper examines blanket guarantee, deposit insurance and restructuring decisions with respect to a multinational bank (MNB) using Nash bargaining when the threat of a bank panic motivates countries to make decisions quickly. Failure of the bank would unevenly distribute externalities across countries, influencing the restructuring incentives. In equilibrium, the bank is either liquidated or one of the countries – or both – recapitalizes it. A partition of the recapitalization costs is sensitive to the country-specific benefits and costs from recapitalization, panic and liquidation. The home regulator benefits from the advantage that it is the only entity that can legally liquidate the MNB. Rational expectations regarding the bargaining result affect the incentives to declare a blanket guarantee. 相似文献
168.
Building on existing research into sound symbolism and cross‐modal correspondences, this article proposes that cross‐modal correspondences—systematic mappings between different sensory modalities—can be used to communicate nonmusical, low‐level sensory properties such as basic tastes through music. A series of three experiments demonstrates that cross‐modal correspondences enable people to systematically encode basic taste properties into parameters in musical space (Experiment 1), and that they are able to correctly decode basic taste information embedded in complex musical compositions (Experiments 2 and 3). The results also suggest some culture‐specificity to these mappings, given that decoding performance, while still above chance levels, was lower in Indian participants than in those from the United States (Experiment 3). Implications and potential applications of these findings are discussed. 相似文献
169.
Asarnusch Rashid Tom Zentek Bruno Rosales Gabi Stummer Natalie Krämer Christophe Kunze 《Heilberufe》2011,63(4):10-13
Megatrend Ambient Assisted Living - Im Jahr 2035 wird in Deutschland jeder dritte Mensch ?lter sein als 60 Jahre. Die Nachfrage
nach Dienstleistungen und unterstützenden Systemen wird steigen. Technische Assistenzsysteme für Pflegende, Pflegebedürftige
und deren Angeh?rige sollen das Leben im Alter sicherer und bequemer machen. 相似文献
170.
Merja Lähdesmäki 《Business ethics (Oxford, England)》2012,21(2):168-182
This article examines the different discursive resources on which small business owner–managers draw when understanding their sense of self in relation to corporate social responsibility. In the small business context, identity provides a justifiable framework to study corporate social responsibility, as decisions regarding socially responsible activities are mainly taken by managers and stem from their sense of who they are in the world. On the basis of 25 thematic interviews with owner–managers, two broad discursive resources were found that describe how they actively seek to create and legitimise their sense of self within the discussion on corporate social responsibility. These discursive resources are called being altruistic and being instrumental. The findings emphasise that the essential and also the most challenging feature in small business owner–managers' identity work is the process of reconciling economic values with the social and ethical aspects of business life. 相似文献