Bayesian Design of Special Type of Double Sampling Plans for Compliance Testing

Bayesian acceptance sampling plans, which utilize prior information on the process variation, can be employed as an alternative to conventional types of plans for taking decisions on the disposition of submitted lots. A special type of double sampling inspection plans by attributes with small acceptance numbers using Bayesian methodology is presented in this paper emphasizing its significance over small acceptance number single sampling plans. The procedures for designing such sampling plans for specified degree of discrimination which would ensure protection to the producer and consumer are discussed with illustrations under the conditions for the application of gamma-Poisson distribution.     

四级样态:高校对接"四种形态"的"度"

高校是“立德树人”培养高素质人才的基地，始终坚持在党的领导下办好中国特色社会主义高校，需要在思想和行动上执行好“四种形态”。正确认识当前高校践行“四种形态”存在的“精细治理”“文化管理”“经验管束”“粗放管理”等“四级样态”，对于高校党组织更好推进“四种形态”在高校落地生根具有重要意义     

Optimal design of repetitive group sampling plans for Weibull and gamma distributions with applications and comparison to the Birnbaum–Saunders distribution

In this paper, we propose a multiple deferred state repetitive group sampling plan which is a new sampling plan developed by incorporating the features of both multiple deferred state sampling plan and repetitive group sampling plan, for assuring Weibull or gamma distributed mean life of the products. The quality of the product is represented by the ratio of true mean life and specified mean life of the products. Two points on the operating characteristic curve approach is used to determine the optimal parameters of the proposed plan. The plan parameters are determined by formulating an optimization problem for various combinations of producer's risk and consumer's risk for both distributions. The sensitivity analysis of the proposed plan is discussed. The implementation of the proposed plan is explained using real-life data and simulated data. The proposed plan under Weibull distribution is compared with the existing sampling plans. The average sample number (ASN) of the proposed plan and failure probability of the product are obtained under Weibull, gamma and Birnbaum–Saunders distributions for a specified value of shape parameter and compared with each other. In addition, a comparative study is made between the ASN of the proposed plan under Weibull and gamma distributions.     

农业保险的保障水平与财政补贴政策优化：一个文献综述 *

近年来，我国农业保险快速发展，在保费收入、保障范围和参保农户数量等指标上都取得了举世瞩目的成绩。与此同时，保障水平不高、农业保险“不解渴、不顶用”也一直是各方反映的焦点之一。本文结合了福利经济学和保险经济学中的相关理论，遵循“提高农业保险保障水平必须优化其财政补贴政策”的逻辑主线，对实施财政补贴政策是提升农业保险保障水平的前提条件、有效途径、有力举措和重要渠道进行了梳理和评析。最后，针对现有研究的不足，结合当前的时代背景，对该领域日后的研究重点进行了预测，并进一步探讨了其优化路径。     

A Design of Attributes Double Sampling Plans for Three-class Products

In this article, a new attributes double sampling plan for three-class products (ADSPTP) is presented, and the corresponding operating characteristic function is constructed based on the given procedure of performing ADSPTP. Average sample numbers (ASN) for complete inspection and curtailed inspection of the second sample are derived and the extreme point is discussed on the three-dimensional ASN surface. In addition, the differences arising from different parameters are studied. Sampling plans are designed by a nonlinear optimization model. Finally, numerical examples and discussions are given to illustrate the obtained results, and tables of the designed plans under various conditions are provided.     

Deficit sustainability,and monetary versus fiscal dominance: The case of Spain, 1850–2000

In this paper, we provide a test of the sustainability of the Spanish government deficit over the period 1850–2000, emphasizing the role played by monetary and fiscal dominance in order to get fiscal solvency. Since the condition of fiscal solvency was satisfied, government deficit would have been sustainable along the sample period. In addition, the whole period can be characterized as one of fiscal dominance.     

Social capital of entrepreneurs in a developing country: The effect of gender on access to and requests for resources

This paper addresses gender differences in the social capital of entrepreneurs in a developing country. Social networks are often an important asset for accessing resources; however, they may also be a liability in developing countries, since entrepreneurs are often expected to support their contacts. Using a recent survey among urban and rural Ugandan entrepreneurs, we focus on the financial resources that entrepreneurs can obtain from their contacts on the one hand, and requests for financial support made to the entrepreneurs from these contacts on the other hand. Our results show that there are gender differences associated with access to, and requests for, financial resources.     

西部六城市流动人口调查综合报告

自中央实施"西部大开发"发展战略以来,在西部省区基础设施和许多行业的大量投资吸引了大量来自东部和邻近农村的流动人员。我国西部是少数族群聚居区,在发展过程中各民族之间存在相互协作的广阔空间,也存在发展机会和利益分配方面的相互竞争关系。为了调查和分析近年来西部的人口流动及其对当地族群关系的影响,我们在西部六个重要城市开展了流动人口的问卷调查。本文以这次问卷调查的数据为基础,系统地分析了西部大城市中流动人口的基本特征、就业状况、收入与消费情况以及他们与当地居民之间的交往。这些量化分析的研究成果,将便于我们进一步深入分析"西部大开发"过程中人口流动对当地经济建设、社会生活和族际交往所带来的影响。     

长江上游地区农村产业融合发展水平测度及影响因素

以长江上游地区为例,从农业内部整合型融合、农业产业链延伸型融合、农业功能拓展型融合、先进技术对农业渗透型融合等四个层面,构建了农村产业融合发展评价指标体系,然后借助耦合协调度模型、熵值法综合评价了农村产业融合发展水平,并基于2004—2016年的面板数据,进一步对长江上游地区农村产业融合发展的影响因素进行了实证研究。研究发现:长江上游地区农村产业融合总体水平从0.2088提升为0.6116,提升了0.4028,在四种细分模式中,先进技术对农业的渗透型融合发展态势最为突出;四个省份中,四川省、重庆市农村产业融合水平较高,云南省、贵州省则相对较低;消费需求、土地流转、技术进步、基础设施、环境质量、人力资本、金融发展等因素都从不同程度作用于农村产业融合发展,各因素因为模式不同而呈现出不同的作用。     

中国价格水平的国际比较：差距及影响因素

基于世界银行2011年国际比较项目（ ICP）数据结果,分析中国价格水平的国际差距,研究其影响因素,剖析世界银行推算的中国购买力平价和价格水平指数的合理性和局限性。研究表明,中国价格总水平相对较低,但在多重因素作用下,呈大幅上升趋势,与国际的差距缩小,价格的国际竞争优势逐渐减弱。在现阶段,中国价格水平与经济发展水平大体相适应。从长期趋势看,中国价格水平继续上升的压力较大,须控制通胀预期,稳定人民币汇率,谨防价格水平上升超出经济发展水平的正常范围。