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Andrea Graf 《International Journal of Human Resource Management》2013,24(6):1124-1148
Inter-cultural competencies have become increasingly important for international personnel selection and training. The purpose of this article is to evaluate psychometric data regarding the controversy as to whether inter-cultural competencies are culture-free or culture-bound. In two empirical research projects in the USA and Germany national differences in inter-cultural competencies are evaluated. National culture is indicated as a significant independent variable for inter-cultural competencies in both studies. However, the impact of national culture on inter-cultural competencies seems to be minor in relation to the impact of gender culture as well as of organizational culture. Therefore, inter-cultural competencies are judged to be culture-general in the two nations. Conceptual conclusions as well as practical conclusions for IHRM are discussed, based on the results. Finally, the limitations of the studies are pointed out. 相似文献
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Stefan Graf 《European Journal of Finance》2017,23(11):974-998
The core idea of life-cycle funds or target-date funds is to decrease the fund's equity exposure and conversely increase its bond exposure towards the fund's target date. Such funds have been gaining significant market share and were recently set as default choice of asset allocation in numerous defined contribution schemes or related old-age provision products in several countries. Hence, an assessment of life-cycle funds’ risk-return profiles – that is, the probability distribution of returns – is essential for sustainable financial planning of a large group of investors. This paper studies the risk-return profile of life-cycle funds in particular compared to simple balanced or lifestyle funds that apply a constant equity portion throughout the fund's term instead. In a Black–Scholes model, we derive balanced funds that reproduce the risk-return profile of an arbitrary life-cycle fund for single and regular contributions. We then analyze the accuracy of our results under more complex asset models with stochastic interest rates, stochastic equity volatility and jumps. We further show that frequently used ‘rule of thumb approximations’ that only take into account the life-cycle fund's average equity portion are not suitable to approximate a life-cycle fund's risk-return profile. Our results on the one hand facilitate sustainable financial planning and on the other hand challenge the very existence of life-cycle funds since appropriately calibrated balanced funds can offer a similar (often dominating) risk-return profile. 相似文献
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Christoph?SchwarzbachEmail author Simone?Krummaker J.-Matthias?Graf?v.?d. Schulenburg 《保险科学杂志》2012,101(2):209-222
In 2009 a so-called morbidity orientated risk structure equalization scheme was installed for the German statutory health insurance in order to minimize structural differences between different providers with respect to revenue and expenditures. Even with this mechanism some risks to the individual health insurance providers remain. Reinsurance could be a way to mitigate these risks, but so far only very few contracts have been signed. Moreover the existing reinsurance contracts only focus on the periphery of the statutory health insurance system such as travel health insurance. In this article we therefore analyse existing risks for individual health insurance providers and evaluate their (re-)insurability. Hereafter the potential for reinsurance solutions in the German statutory health insurance itself as well as in newer forms of healthcare provision (e.g. integrated health care and managed care) is discussed. We find that reinsurance may be a reasonable solution for many of the risks in the statutory health insurance scheme. But as research in this area is very young further analysis of the nature of risks is necessary. 相似文献
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Gerhard Kling 《European Journal of Finance》2018,24(1):59-75
This paper develops a theory of operational cash holding. Liquidity shocks due to delayed payments must be financed using cash or short-term debt. Debt holders provide an irrevocable credit line given a firm's expected insolvency risk, and equity holders select optimum cash holding. The model demonstrates the trade-off between cash holding and investing in fixed assets. Introducing uncertain cash flows leads to precautionary cash holding if debt holders impose financial constraints. Precautionary cash holding, in turn, reduces insolvency risk enhancing access to short-term finance. The theory shows that credit rationing can occur in the absence of market frictions. Using U.S. data from 1998 to 2012, empirical findings suggest that the decline in credit lines has contributed to the increase in cash holding in line with theoretical predictions. 相似文献
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Heilberufe - Die Liberalisierung des Wohlfahrtsstaates, ausgelöst durch den zunehmend globali sierten Wettbewerb, wird in der Zukunft auch wesentliche Auswirkungen auf die Anforderungen an die... 相似文献
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Gerhard Wegner 《Constitutional Political Economy》1998,9(3):213-234
This article analyzes some problems regarding our knowledge of environmental policy. Sustainable development as the prospective enlargement of the political agenda has been identified as a long-term challenge for economic policy which could get trapped in a new form of interventionism. The evolutionary market approach that is presented here focuses on development risks of environmental policy that are mostly neglected in standard theory. A transfer of the Hayekian concept of negative rules to the realm of environmental policy is critically discussed. A straight-forward transfer of Hayek's theory stressing the importance of negative rules cannot be recommended, since even the negative rules carry some development risks in the realm of environmental policy. Some preliminary political consequences are drawn which are appropriate to limit the extension of environmental targets in the future. 相似文献