陈云援接、安置西路军刍议

1937年4月至11月,陈云依靠中共中央和共产国际的支持,利用新疆的和平及相对宽松的政治环境,出色地完成了援接西路军进疆及安置任务。在疆期间,陈云还通过多方面的努力,不仅使历尽磨难的西路军余部重新振奋士气,还在坚持统一战线的前提下灵活运用各种策略,为他们争取到更多的生存与发展利益。     

从“同出而异名”角度解读老子的“圣人与百姓”思想

在《老子》传统的解读中,并没有将圣人和百姓放在对等的立场上,而忽视百姓的存在。事实上在老子的思想里,圣人和百姓是没有优劣之分的,二者都是推动"道"正常运动的力量,缺一不可,只是圣人和百姓在道的运动过程中扮演着不同角色。正是因为二者的共存,道才显现出既幽远深邃又生机盎然的特征。圣人和百姓作为两种不同的生命存在方式,共同维持着"宇宙—生命"系统的通塞平衡。     

关于建立城乡统一的社会保障体系的浅见

建立城乡统一的社会保障体系不仅是学术界争论的焦点，也是实践部门讨论的热点。各种主张众说纷纭。然而，建立统一的社会保障体系不能凭空设想，应立足于实际，坚持具体问题具体分析。当务之急是根据农村的情况，分地方、分人群、分层次建立安全有效的农村社会保障体系。     

哈尼族研究中史误的三点辨正

国内有关哈尼族的研究近年来硕果累累,但有的论著中对某些史料的理解存在误区.本文以原始资料为依据,针对哈尼族研究中涉及到的<尚书·禹贡>记载与梯田的关系,明初黔西北、滇东北有无"和泥芒部府",康熙时参与反清起义的龙韬之地位与族属三个问题,进行了相关的考证分析,提出了不同于以往的看法.     

唐宋时期回族先民对西北商业经济的开发与贡献

重视商业经济,是伊斯兰教的特点之一。唐宋时期,伴随着伊斯兰教的传入,回族先民对西北商业经济进行了开发。他们一方面继承了阿拉伯商业的传统,另一方面在新的环境下,又有所创新、有所发展。在长期不断的开发中,为西北区域经济的繁荣与发展,做出了重要的贡献。     

THE INEFFICIENCY OF WORKER TIME USE

Much work is carried out in short, interrupted segments. This phenomenon, which we label task juggling, has been overlooked by economists. We study the work schedules of some judges in Italy documenting that they do juggle tasks and that juggling causally lowers their productivity substantially. To measure the size of this effect, we show that although all these judges receive the same workload, those who juggle more trials at once instead of working sequentially on few of them at each unit of time, take longer to complete their portfolios of cases. Task juggling seems to have no adverse effect on the quality of the judges' decisions, as measured by the percent of decisions appealed. To identify these causal effects we estimate models with judge fixed effects and we exploit the lottery assigning cases to judges. We discuss whether task juggling can be viewed as inefficient, and provide a back‐of‐the‐envelope calculation of the social cost of longer trials due to task juggling.     

Risk aggregation with dependence and overdispersion based on the compound Poisson INAR(1) process

Abstract

This paper considers an extension of the classical discrete time risk model for which the claim numbers are assumed to be temporal dependence and overdispersion. The risk model proposed is based on the first-order integer-valued autoregressive (INAR(1)) process with discrete compound Poisson distributed innovations. The explicit expression for the moment generating function of the discounted aggregate claim amount is derived. Some numerical examples are provided to illustrate the impacts of dependence and overdispersion on related quantities such as the stop-loss premium, the value at risk and the tail value at risk.     

Parameter estimation of Lindley step stress model with independent competing risk under type 1 censoring

Abstract

In literature, Lindley distribution is considered as an alternative to exponential distribution to fit lifetime data. In the present work, a Lindley step-stress model with independent causes of failure is proposed. An algorithm to generate random samples from the proposed model under type 1 censoring scheme is developed. Point and interval estimation of the model parameters is carried out using maximum likelihood method and percentile bootstrap approach. To understand the effectiveness of the resulting estimates, numerical illustration is provided based on simulated and real-life data sets.     

A new look at Markov processes of G/M/1-type

We present a new method for deriving the stationary distribution of an ergodic Markov process of G/M/1-type in continuous-time, by deriving and making use of a new representation for each element of the rate matrices contained in these distributions. This method can also be modified to derive the Laplace transform of each transition function associated with Markov processes of G/M/1-type.