农村基本经营制度改革:中心线索、重点变迁与路径取向

我国农村基本经营制度改革既有一贯坚持的基本原则,也有伴随着时代变迁而表现出来的阶段性特征。传统"二元"论或"三元"论既难以完整涵盖其主要内容,也不能准确反映变迁过程中的重点转移。"一个中心、三个基本点"的新视角,则能较好解决上述问题。在不同时期,应始终坚持"农村土地的集体所有"这个中心;在不同历史阶段,改革的重点则依次是"家庭经营的主体地位"、"农户土地的用益物权"和"市场主导的社会服务"。未来改革重点则是在实现城乡公共服务均等化的同时,围绕农地用途、经营主体准入、食品安全、生态补偿等完善微观规制和扶持政策。     

Control‐based imputation for sensitivity analyses in informative censoring for recurrent event data

In clinical trials, missing data commonly arise through nonadherence to the randomized treatment or to study procedure. For trials in which recurrent event endpoints are of interests, conventional analyses using the proportional intensity model or the count model assume that the data are missing at random, which cannot be tested using the observed data alone. Thus, sensitivity analyses are recommended. We implement the control‐based multiple imputation as sensitivity analyses for the recurrent event data. We model the recurrent event using a piecewise exponential proportional intensity model with frailty and sample the parameters from the posterior distribution. We impute the number of events after dropped out and correct the variance estimation using a bootstrap procedure. We apply the method to an application of sitagliptin study.     

A comparison study of computational methods of Kolmogorov–Smirnov statistic in credit scoring

Kolmogorov–Smirnov statistic (KS) is a standard measure in credit scoring. Currently, there are three computational methods of KS: method with equal-width binning, method with equal-size binning and method without binning. This paper compares the three methods in three aspects: Values, Rank Ordering of Scores and Geometrical Way. The computational results on the German Credit Data show that only the method without binning can produce a unique value of KS. It is further proved analytically that the method without binning yields the maximum value of KS among the three methods. The computational results also show that only the method with equal-size binning can be used to evaluate rank ordering of scores. Moreover, it is proved that all the three methods can be used to calculate KS in a geometric way.     

Coordination in a Single‐Supplier,Multi‐Retailer Distribution System: Supplier‐Facilitated Transshipments

We consider supplier‐facilitated transshipments for achieving supply chain coordination in a single supplier, multi‐retailer distribution system with non‐cooperative retailers. The previous transshipment literature has focused on coordination through retailer‐negotiated transshipments and thus does not consider the supplier's decision‐making. In contrast, in this study, we assume the supplier is an active participant in the system and we seek to understand how the supplier can facilitate the implementation of coordinating transshipments. We study a two‐period model with wholesale orders at the start of the first period and preventive transshipments performed at the start of the second period. Inspired by a supplier‐facilitated transshipment scheme observed in practice, we assume the supplier implements transshipments through a bi‐directional adjustment contract. Under this contract, each retailer can either buy additional inventory from, or sell back excess inventory to, the supplier. We show that coordination can be achieved through carefully designed contracts with state‐dependent adjustment prices and a wholesale price menu. We demonstrate that the supplier's role in facilitating coordinating transshipments is critical. In addition, we use our understanding of the coordinating contract form to derive some simpler and easier‐to‐implement heuristic contracts. We use a numerical study to demonstrate the value, to the supplier, of using the coordinating adjustment and wholesale prices, and to evaluate the heuristics’ performance.     

我国通讯设备制造企业跨国经营的技术战略

我国通讯设备企业跨国经营,技术是企业竞争力的来源,所以,加强对技术战略的管理具有重要意义。通讯设备企业要走出去,应研究和分析跨国经营的环境和国际技术竞争新特点,制定适合自身发展的技术战略。建议企业的技术战略是：企业的技术战略应与整体战略和其他分战略相适应;采取多样化的技术获取战略;运用技术应用战略等。     

非公有资本介入广播电视行业的规制及路径

随着我国广播电视国有经营性文化单位转企改制的不断深入,非公有资本将进一步渗透到该领域,成为推动我国广播电视产业发展的重要力量。依据现行相关规定,非公有资本可以介入到广播电视业的影视内容制作与发行、频道频率运营、数字电视运营以及新媒体产业运营等领域。现阶段,非公有资本进入广播电视行业还存在一定的障碍。政府应出台相应的扶持保障政策,社会制作机构应建立行业协会,同时拓宽播出渠道、创新盈利模式．共同推进广播电视产业的社会化分工、专业化生产。     

“真理”与“方法”——论卢梭的思想图景与书写方式

不同的书写方式与诠释方式产生了思想的不同面向。应当根据具体文脉而非外在要素来检审卢梭思想的诠释方式,实现诠释与卢梭思想自我理解的同一。卢梭思想揭示了人类的政治与哲学的生存处境,并对这种生存处境提供了回应方案,形成了一个思想整体。政治哲人卢梭的隐微与显白书写彰显了卢梭思想的内在张力。对卢梭书写方式的阐发将有助于为卢梭思想的诠释提供恰当的路径。     

2011年文艺学研究有关的几个问题

一个学科要想获得发展,必须处理好两个彼此相关的问题:其一是对当下社会文化重大问题的回应能力;其二是将这些问题的回应与本学科自身的关联梳理清楚。通过对2011年与文艺学研究有关的几个问题及其讨论(包括"艺术学升‘门’"、"文学经验"、"文学形式"、"视觉文化"等)的清理,可以发现文艺学研究必须要积极应对和处理与相邻学科的关系、本学科内部的研究范式以及在当代文化重要问题中推动学科的发展。     

组织吸收能力研究:理论回顾与整合框架

吸收能力正在成为组织研究的新兴重要领域,已有的研究取得了很多共识,但在吸收能力的内涵、构念和测量上还存在诸多分歧,需要进一步从学习创新、知识能力和管理认知角度对吸收能力内涵的演化与发展,研究方法、测量和模型进行深入地研究,提出该领域研究中未来研究的视角和方向。     

生态学马克思主义的发展轨迹探析

生态学马克思主义的思想发展经历了一个显著的变化:从坚持生态中心主义立场到坚持人类中心主义立场;从反对现代化到主张生态社会主义现代化;从赞成"基层民主"到反对"基层民主";从追求生态正义到追求社会正义。这些变化表明其最终摆脱了深生态学的影响,在一定程度上坚持了马克思主义,成为当代西方最具红色标志的绿色思想。