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91.
Zhen Wang Dean Tjosvold Yi-feng Nancy Chen Zhengxue Luo 《Asia Pacific Journal of Management》2014,31(3):835-852
Based on the theory of cooperation and competition, this study examines the relationships between cooperative goals, advice network, and team performance, and their boundary conditions. Based on multi-source data from 189 teams in a military organization, results indicate that cooperative goals positively influence team performance via advice network density. Moreover, advice network centralization moderates the relationship between advice network density and team performance. In addition, advice network centralization moderates the indirect effect of cooperative goals on team performance via advice network density. 相似文献
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Katja Hanewald PhD 《North American actuarial journal : NAAJ》2013,17(2):290-314
Abstract Using data for six OECD countries over the period 1950–2006, this paper studies the impact of macroeconomic fluctuations and cause of death trends on mortality dynamics in the Lee-Carter mortality forecasting model. The key results of this study are the following: (1) Periods can be identified in which the Lee-Carter mortality index kt correlates significantly with macroeconomic fluctuations. (2) A few causes of death such as diseases of the circulatory system, influenza and pneumonia, and diabetes mellitus account for a large fraction of the variations in the Lee-Carter mortality index kt . (3) Most cause-specific mortality rates show pronounced trends over the last few decades. These trends change the composition of deaths and alter how total mortality reacts to external factors such as macroeconomic fluctuations. 相似文献
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Emerging economies provide a laboratory for investigating the interaction between firm strategies and local contexts. Mike Wright and colleagues have shaped this research agenda by creating legitimacy for this line of research, and by outlining how research in four types of strategy contexts can advance theories. We assess how this agenda has progressed in eight leading journals in the past decade, particularly during the five years following their review, with the aims to identify broad trends of theorizing, and to outline future research challenges. Emerging economy contexts challenge some of the assumptions of theories originally developed for markets that are relatively stable and efficient. Researchers have advanced several theoretical perspectives by addressing these challenges. Wright and colleagues focused on institutional theory as a major foundation for such work, and we find it continuing to be the most popular theoretical perspective. In addition, new perspectives have emerged, focusing on learning, relationships, real options, and spillovers as focal concepts for theorizing. 相似文献
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Kevin Dowd PhD Andrew J. G. Cairns PhD David Blake PhD Guy D. Coughlan PhD David Epstein PhD Marwa Khalaf-Allah PhD 《North American actuarial journal : NAAJ》2013,17(3):281-298
Abstract This study sets out a backtesting framework applicable to the multiperiod-ahead forecasts from stochastic mortality models and uses it to evaluate the forecasting performance of six different stochastic mortality models applied to English & Welsh male mortality data. The models considered are the following: Lee-Carter’s 1992 one-factor model; a version of Renshaw-Haberman’s 2006 extension of the Lee-Carter model to allow for a cohort effect; the age-period-cohort model, which is a simplified version of Renshaw-Haberman; Cairns, Blake, and Dowd’s 2006 two-factor model; and two generalized versions of the last named with an added cohort effect. For the data set used herein, the results from applying this methodology suggest that the models perform adequately by most backtests and that prediction intervals that incorporate parameter uncertainty are wider than those that do not. We also find little difference between the performances of five of the models, but the remaining model shows considerable forecast instability. 相似文献
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Moshe A. Milevsky PhD 《North American actuarial journal : NAAJ》2013,17(4):109-122
Abstract This paper explores the financial properties of a concept product called an advanced-life delayed annuity (ALDA). The ALDA is a variant of a pure deferred annuity contract that is acquired by installments, adjusted for consumer price inflation, and pays off toward the end of the human life cycle. The ALDA concept is aimed at the growing population of North Americans without access to a traditional defined benefit (DB) pension plan and the implicit longevity insurance that a DB plan contains. I show that under quite reasonable pricing assumptions, a consumer can invest or allocate $1 per month, while saving for retirement, and receive between $20 and $40 per month in benefits, assuming the deductible in this insurance policy is set high enough. The ALDA concept might go a long way in mitigating the psychological barrier to voluntary lump-sum annuitization. 相似文献
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