对农村合作基金会的性质、使命和管理的思考

成立农村合作基金会的意图是管好用活农村集体资金,扭转农村承包责任制后集体资金管理混乱的局面。但是,在它的发展过程中存在以下三个主要问题:①没有很好支持农业的发展;②资金运用不受信贷规模控制,加剧信贷规模膨胀;③对筹措到的资金管理混乱。为解决农村合作基金会的这些问题和矛盾,作者对其性质、使命及资金管理提出了自己的看法。     

Optimal predictive sample size for case–control studies

Summary.  The identification of factors that increase the chances of a certain disease is one of the classical and central issues in epidemiology. In this context, a typical measure of the association between a disease and risk factor is the odds ratio. We deal with design problems that arise for Bayesian inference on the odds ratio in the analysis of case–control studies. We consider sample size determination and allocation criteria for both interval estimation and hypothesis testing. These criteria are then employed to determine the sample size and proportions of units to be assigned to cases and controls for planning a study on the association between the incidence of a non-Hodgkin's lymphoma and exposition to pesticides by eliciting prior information from a previous study.     

我国养老保险基金存在的问题及其对策

我国养老保险基金历经了十多年的改革 ,已实现了从现收现付制向部分积累基金制的转换。几年来的实践证明 ,“统帐结合”的养老保险基金在社会生活中起了积极、重要的作用。然而养老保险基金在管理过程中存在着一些问题 ,我们必须多方面寻求对策 ,以促进养老基金的健康成长。     

中国省际贸易矩阵的估计与应用

基于2012年中国31省市的投入产出表,借鉴国内资金流量表、投入产出分析方法和社会核算矩阵理论编制了中国省际贸易矩阵,估计和分析了各地区省际间贸易往来规模及特征,并进行了各地区贸易往来影响效应的比较。结果发现：北京、海南等省际贸易依存度较高,四川、山东等省内贸易比例较大,江苏、北京等省际贸易总量较大,而青海、西藏等省际贸易总量较小;北京、上海等发达省份之间的贸易往来较为密切,同时一些中部省份是贸易流入的主要地区;北京、上海等呈现较强的影响力和感应度,浙江、江苏等沿海省份有着较强的感应度和较弱的影响力,宁夏、陕西等西部省份呈现较强影响力和较弱的感应度。     

Solving Resource Allocation Problems When Earning Effects Are Present

Learning effects play an important role in certain resource allocation problems, and several authors have proposed models for these problems that capture the relevant relationships. However, the models may be difficult to implement or have shortcomings in the prescribed solution procedures. In this paper, we selectively review the work to date and present a simple reformulation that facilitates solution by off-the-shelf software.     

AN ADAPTIVE DECISION SUPPORT SYSTEM FOR ACADEMIC RESOURCE PLANNING

Institutions of higher learning are growing increasingly interested in the use of model-based approaches to their resource allocation problems. Recent modeling approaches, however, have failed to consider that resource allocation planning is not a well-structured decision process. Additionally, many decision makers are necessarily involved in the academic planning process and may assume dissimilar perspectives on the importance of achieving different goals and objectives. Furthermore, satisfactory allocation solutions can be expected to vary considerably from decision maker to decision maker as the individual's cognitive processes, perceptions, and evaluations are taken into consideration. This paper describes a decision support system (DSS) approach that attempts to adapt to a variety of academic decision makers with differing planning views in an environment of multiple conflicting objectives. This DSS, which was successfully tested on four academic decision makers in a large midwestern university, shows considerable promise for providing decision support to decision makers with varied problem-solving styles.     

人口老龄化对社会医疗保险基金影响的实证分析--以广东省珠海市为例

随着老龄化进程的加剧和医疗卫生费用的持续增长,我国社会医疗保险基金正面临着出险的压力。本文运用精算方法研究医疗保险基金的收支平衡测算方法,在此基础上,对广东省珠海市社会医疗保险统筹基金的运行状况进行了测算分析。     

A multi-treatment two stage adaptive allocation for survival outcomes

A multi-treatment two stage adaptive allocation design is developed for survival responses. Assuming noninformative random censoring, asymptotic p values of relevant tests of equality of treatment effects are used to derive the assignment probability of incoming second stage subjects. Several ethical and inferential criteria of the design are studied, and are compared with those of an existing competitor. Applicability and performance of the proposed design are also illustrated using a data arising from a real clinical trial.     

C219. Comment on ”calculating binomial probabilities when the trial probabilities are unequal“

In complex models like hidden Markov chains, the convergence of the MCMC algorithms used to approximate the posterior distribution and the Bayes estimates of the parameters of interest must be controlled in a robust manner. We propose in this paper a series of online controls, which rely on classical non-parametric tests, to evaluate independence from the start-up distribution, stability of the Markov chain, and asymptotic normality. These tests lead to graphical control spreadsheets which arepresentedin the set-up of normalmixture hidden Markov chains to compare the full Gibbs sampler with an aggregated Gibbs sampler based on the forward – backward formulas.     

主权财富基金投资与东道国警惕--基于违背承诺的声誉模型分析

基于主权财富基金一次违背承诺将被永久性禁止进入东道国投资的前提,通过构建声誉模型,研究了主权财富基金与东道国的投资博弈关系,以指导我国主权财富基金投资实践。研究表明：在较为现实的假定条件下,主权财富基金是否违背承诺取决于其短期收益和长期机会成本的大小;同时,进入东道国的投资动机越强烈,主权财富基金越不容易进入东道国市场：而东道国对主权财富基金的警惕程度则受制于主权财富基金的风险偏好程度、让渡价值比率、投资效用贴现率、投资风险,以及主权财富基金在东道国期望获得的投资收益增长率等因素,东道国政府对主权财富基金设置投资壁垒和障碍对双方都不利。