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101.
按照存在破产成本和税收情况下的MM理论分析,只有管理当局确定的资本比率和银行最佳资本结构一致时,资本充足性管制才是完全有效的。实证检验表明,各国银行的最佳资本结构并不完全相同,资本比率与资本收益率之间也不存在协整关系,不存在一个适于所有银行的最佳资本比率。《巴 相似文献
102.
The problem of hypothesis testing and interval estimation of the reliability parameter in a stress–strength model involving
two-parameter exponential distributions is considered. Test and interval estimation procedures based on the generalized variable
approach are given. Statistical properties of the generalized variable approach and an asymptotic method are evaluated by
Monte Carlo simulation. Simulation studies show that the proposed generalized variable approach is satisfactory for practical
applications while the asymptotic approach is not satisfactory even for large samples. The results are illustrated using simulated
data. 相似文献
103.
文章针对自动化立体仓库的库区和货位的分配策略问题进行了讨论,提出立体仓库的库区优化数学模型:在库区优化基础上,进一步提出货位优化数学模型.将Pareto最优解的概念与遗传算法相结合,提出了一种改进的解决多目标优化问题的Pareto遗传算法解决货位优化问题.给出了仿真实验及分析,结果表明采用改进遗传算法优化策略可以有效地解决自动化立体仓库的货位优化分配问题。 相似文献
104.
Matias Leppisaari 《Scandinavian actuarial journal》2016,2016(2):113-145
Recently, a marked Poisson process (MPP) model for life catastrophe risk was proposed in Ekheden & Hössjer (2014). We provide a justification and further support for the model by considering more general Poisson point processes in the context of extreme value theory (EVT), and basing the choice of model on statistical tests and model comparisons. A case study examining accidental deaths in the Finnish population is provided. We further extend the applicability of the catastrophe risk model by considering small and big accidents separately; the resulting combined MPP model can flexibly capture the whole range of accidental death counts. Using the proposed model, we present a simulation framework for pricing (life) catastrophe reinsurance, based on modeling the underlying policies at individual contract level. The accidents are first simulated at population level, and their effect on a specific insurance company is then determined by explicitly simulating the resulting insured deaths. The proposed microsimulation approach can potentially lead to more accurate results than the traditional methods, and to a better view of risk, as it can make use of all the information available to the re/insurer and can explicitly accommodate even complex re/insurance terms and product features. As an example, we price several excess reinsurance contracts. The proposed simulation model is also suitable for solvency assessment. 相似文献
105.
EQⅡ是一种利用地震指数确定共同保险赔付比例的新型地震指数保险产品。本文基于巨灾经济损失分解的观点,推导出了帕累托最优EQⅡ保单设计的必要条件,并在CARA效用假设以及地震损失中个体差异的影响为伽马分布的条件下,得出了EQⅡ的帕累托最优赔付比例与地震指数之间的具体函数关系。最后利用中国大陆历年地震损失数据,分别对以地震震级和震中烈度作为指数的EQⅡ产品进行帕累托最优赔付比例体系的设计及定价。本文的研究结果表明,当前EQⅡ产品的保单设计符合帕累托最优的必要条件,并且风险管理能力稍弱的机构也可以根据自身风险偏好设计并发售满足帕累托最优条件的EQⅡ产品。此外,EQⅡ产品的帕累托最优赔付比例设计与地震区划中各区域的地震灾害特点和潜在的目标客户数量有关,因此本文建议EQⅡ的赔付比例应根据各区域地震灾害的具体情况分别进行设计。 相似文献
106.
福田作为深圳的经济、政治、文化、信息中心,在改革开放30年的发展过程中涌入了大量外来人口,为经济的飞速发展作出了突出贡献,但同时也带来了系列社会问题。本文运用可能—满意度方法研究福田区适度人口规模,将多目标可能满意度模型细分为经济、环境资源和社会生活三个子模型,分别判断了各个子模型对系统的影响程度,分析了决定中心城区人口承载力的关键因素,并采用不同的合并算法确定了福田区2020年的适度人口规模,为相关部门决策提供参考。 相似文献
107.
Nicolino Ettore D’Ortona 《Scandinavian actuarial journal》2017,2017(4):366-375
In the reinsurance market, the cedent and the reinsurer make their subjective evaluations of the utility and riskiness of the financial operations covered by a treaty by deriving preference rankings of the different kinds of agreements. If both the cedent and the reinsurer evaluate the operation underlying the treaty by means of their utility functions and adopt the criterion based on the comparison between the expected utilities in order to take into account the subjective attitude toward risk, then the indifference prices play a crucial role because they define the preference thresholds of the exchange, thus restricting the range of variability of the reinsurance price. By using an analytical approach, this paper examines the above problem identifying the margins for achieving Pareto-optimal solutions in trading insurance risks. 相似文献
108.
最佳滴灌面积由农作物灌水定额、毛管出水流量及相关控制加压设备的重量综合考虑对比计算确定。现有灌溉方式中最高效节水的灌溉方式是滴灌,随着国家现代农业的推广,滴灌在农业灌溉中所占份额越来越大。 相似文献
109.
Eksamen i Forsikringsvidenskab og Statistik ved Köbenhavns Universitet. 2. Del. Den skriftlige Pröve
David P.M. Scollnik 《Scandinavian actuarial journal》2013,2013(3):201-203
AbstractThis paper develops a Pareto scale-inflated outlier model. This model is intended for use when data from some standard Pareto distribution of interest is suspected to have been contaminated with a relatively small number of outliers from a Pareto distribution with the same shape parameter but with an inflated scale parameter. The Bayesian analysis of this Pareto scale-inflated outlier model is considered and its implementation using the Gibbs sampler is discussed. The paper contains three worked illustrative examples, two of which feature actual insurance claims data. 相似文献
110.
Philippe De Lombaerde 《Global Economic Review》2013,42(2):57-78
In this article, the author analyses the prospects for monetary integration in the Andean and Caribbean regions and stresses the regional specificities that should be taken into account. He points to the necessity to combine economic, political economy and institutional approaches to assess scenarios for monetary integration. The author also argues that the application of optimum currency area theory to regions with specific characteristics (in many respects different from the EU) might produce positive feed‐back effects for the development of OCA theory itself, highlighting specific aspects and implications of the same theory and stimulating theoretical research. 相似文献