Double and group acceptance sampling plan for truncated life test based on inverse log-logistic distribution

This paper introduces a double and group acceptance sampling plans based on time truncated lifetimes when the lifetime of an item follows the inverse log-logistic (ILL) distribution with known shape parameter. The operating characteristic function and average sample number (ASN) values of the double acceptance sampling inspection plan are provided. The values of the minimum number of groups and operating characteristic function for various quality levels are obtained for a group acceptance sampling inspection plan. A comparative study between single acceptance sampling inspection plan and double acceptance sampling inspection plan is carried out in terms of sample size. One simulated example and four real-life examples are discussed to show the applicability of the proposed double and group acceptance sampling inspection plans for ILL distributed quality parameters.     

重庆农村土地交易所篚运行机制及其优化

重庆农村土地交易所是我国首家农村土地交易市场,其成立对于推进重庆统筹城乡综合配套改革试验区建设、探索建立城乡统一的土地交易市场具有极为重要的意义。对重庆农村土地交易所基本管理体系、运行框架、交易品种以及历次地票交易情况等的调查分析表明,应充分发挥农村土地交易所市场平台作用,进一步丰富交易品种和服务内容,按照地票的商品特性和市场供求关系建立合理的价格形成机制,构建合理的地票收益分配机制,进一步完善交易所内部管理机制。     

基于公平关切线上与线下销售渠道演化博弈研究

公平关切影响决策行为,为分析公平关切对线上与线下销售渠道决策行为和竞争策略影响,构建线上与线下销售渠道博弈模型。基于博弈模型,对比分析四种公平关切情况对线上与线下决策变量和利润影响。进一步,为获得线上与线下稳定博弈结果,基于四种公平关切构建演化博弈模型,分析不同公平关切行为对销售渠道参与者决策行为影响。研究主要得到：一方采取公平关切时,会减少另一方收益;一方采取合作公平关切策略与另一方采取公平关切密切相关,也即当一方采取公平关切概率大于某一阀值时,另一方采取不公平关切;线上与线下经过长期演化博弈,演化稳定点为双方都采取公平关切。     

美国企业破产制度与银行破产制度比较

纵观全球,在银行破产问题上有两种立法例,一是普通法立法例,二是特别法立法例。前者以德国和英国为代表,他们的普通公司破产程序与银行破产程序都规定在普通破产法典中。后者以美国为代表。银行破产不适用普通破产法典的规定,而是用特别的银行破产法。通过对美国普通公司破产法和银行破产法的比较研究,可以了解普通公司破产与银行破产的不同,从而为我国制定银行破产法提供借鉴。     

Using relative utility curves to evaluate risk prediction

Summary.  Because many medical decisions are based on risk prediction models that are constructed from medical history and results of tests, the evaluation of these prediction models is important. This paper makes five contributions to this evaluation: the relative utility curve which gauges the potential for better prediction in terms of utilities, without the need for a reference level for one utility, while providing a sensitivity analysis for misspecification of utilities, the relevant region, which is the set of values of prediction performance that are consistent with the recommended treatment status in the absence of prediction, the test threshold, which is the minimum number of tests that would be traded for a true positive prediction in order for the expected utility to be non-negative, the evaluation of two-stage predictions that reduce test costs and connections between various measures of performance of prediction. An application involving the risk of cardiovascular disease is discussed.     

Confidence interval estimation of the difference between paired AUCs based on combined biomarkers

In many diagnostic studies, multiple diagnostic tests are performed on each subject or multiple disease markers are available. Commonly, the information should be combined to improve the diagnostic accuracy. We consider the problem of comparing the discriminatory abilities between two groups of biomarkers. Specifically, this article focuses on confidence interval estimation of the difference between paired AUCs based on optimally combined markers under the assumption of multivariate normality. Simulation studies demonstrate that the proposed generalized variable approach provides confidence intervals with satisfying coverage probabilities at finite sample sizes. The proposed method can also easily provide P-values for hypothesis testing. Application to analysis of a subset of data from a study on coronary heart disease illustrates the utility of the method in practice.     

我国政府投资运行机制:原理、问题与对策

作为社会经济发展必不可少的政府投资如何不断提高投资的效益是我们必须关注的重要研究课题。在分析政府投资运行机制基本原理的基础上,对我国政府投资中存在的问题进行深入分析,并提出了完善我国政府投资运行机制的对策。     

爱的存在——蒂利希终极关怀思想管窥

爱不仅是情感的维度,更具有存在的意义。作为终极关怀的一部分,爱与终极关怀休戚相关,爱的沉沦正是终极关怀的困境所在,而爱的诠释则是终极关怀的表达。爱的存在深入生命的深层,并通过象征、悖论以及信仰的方式呈现出来,爱的呈现既是生命的展开,也是终极关怀的践行。     

金融资产管理公司在国企改革中的角色与法律问题

本文通过简要介绍金融资产管理公司处置不良资产的变现模式、近年国有企业改革的模式,初步说明了金融资产管理公司处置资产实际上是推进国有企业改革的方式之一,同时重点阐述了资产管理公司在其中遇到的法律问题并提出了相关的一些立法建议。     

试论国家助学贷款良性运行机制建立之对策

国家助学贷款是利用金融手段完善我国普通高校资助政策体系,加大对经济困难学生资助力度所采取的一项重大措施。运行中存在问题是当前市场经济法制不健全、社会信用部分失范的必然结果。要形成大学生助学贷款良性运行机制,必须建立国家、银行、高校、学生与社会"五位一体"的联合保障机制。最重要的是应尽快建立全国性的以居民身份证号码为依托的"全国大学生信用网",并以此作为建立全国性的信用机制的开端。要在全社会形成一种讲诚信光荣、不讲诚信可耻的持久氛围,让信用缺失者无论在何处都要为自己的行为付出代价。此外还应大力发展学生生源所在地贷款业务。