多元互动对农户参与农产品区域品牌共建意愿的影响:心理契约的中介效应

围绕农户主体,引入心理契约作为中介变量,探讨多元互动对农户参与农产品区域品牌共建意愿的影响机理.以湖北省张港镇、孝昌县及武汉市五个"一村一品"重点建设村落的355户农户为研究对象,采用验证性因子分析、层级回归等方法实证分析多元互动对农户参与农产品区域品牌共建意愿的影响.结果表明:多元互动对农户参与农产品区域品牌共建意愿具有显著的正向影响;心理契约在多元互动和农户参与农产品区域品牌共建意愿之间起中介作用.该研究结论对调动农户积极性、推动农产品区域品牌建设具有重要的启示和借鉴意义.     

中国扶贫70年:基于实现共富的三重向度研究

消除贫困、实现共同富裕是社会主义的本质要求，也是中国共产党人的“初心”和“使命”。新中国成立70年来，党和政府为实现全体人民共同富裕的奋斗目标，带领全国人民持续向贫困宣战，成功探索出了一条具有中国特色的扶贫道路，取得了举世公认的扶贫成就。基于实现共富的三重向度来回顾中国扶贫70年的发展历程：在历史向度上，中国扶贫道路经历了救济式扶贫、体制改革式扶贫、开发式扶贫、参与式扶贫和精准扶贫等5个发展阶段；在实践向度上，中国扶贫始终坚持实事求是思想路线，发挥党的领导和政府主导相结合的政治优势，积蓄扶贫物质的经济力量，形成了独具中国特色的“中国经验”；在价值向度上，中国扶贫70年所形成的“中国经验”为世界减贫理论、减贫事业的发展贡献出了“中国智慧”和“中国方案”，具有极其重要的世界意义。     

Copula‐based semiparametric analysis for time series data with detection limits

The analysis of time series data with detection limits is challenging due to the high‐dimensional integral involved in the likelihood. Existing methods are either computationally demanding or rely on restrictive parametric distributional assumptions. We propose a semiparametric approach, where the temporal dependence is captured by parametric copula, while the marginal distribution is estimated non‐parametrically. Utilizing the properties of copulas, we develop a new copula‐based sequential sampling algorithm, which provides a convenient way to calculate the censored likelihood. Even without full parametric distributional assumptions, the proposed method still allows us to efficiently compute the conditional quantiles of the censored response at a future time point, and thus construct both point and interval predictions. We establish the asymptotic properties of the proposed pseudo maximum likelihood estimator, and demonstrate through simulation and the analysis of a water quality data that the proposed method is more flexible and leads to more accurate predictions than Gaussian‐based methods for non‐normal data. The Canadian Journal of Statistics 47: 438–454; 2019 © 2019 Statistical Society of Canada     

上海家政服务业发展调研报告

面对广阔的家政市场需求,上海应当积极抓住机遇,通过扶持若干龙头企业,优化家政服务市场环境;充分发挥行业协会的协调引领作用,做好行业标准建设与自律;培育一支理念先进、眼光深远的高素质职业经理人队伍,深入推动家政服务品牌化发展;提量增质,不断引入更多从业人员,提升整体从业人员素质,建立以服务质量为核心的规则秩序.同时,还要重视家政服务业的法律法规建设,充分保障各方的合法权益,促进上海家政服务业健康发展.     

“四史”教育融入高校思政课教学的五维逻辑进路

历史照亮过去，历史启迪未来。以党史、新中国史、改革开放史、社会主义发展史为核心内容的“四史”教育，是以历史为基础的思想政治教育。从党史、新中国史、改革开放史、社会主义发展史中挖掘思想政治理论课教育资源，对高校传承红色基因、落实立德树人根本任务具有重要的指导意义。以庆祝中国共产党成立100周年为契机，将“四史”教育融入高校思想政治理论课教学，必须遵循相应的逻辑理路：树立正确党史观、坚定理想信念的价值追求是融入的逻辑立场；强化大历史观、理解党的伟大贡献是融入的逻辑方法；坚持内在统一性、把握“四史”教育的整体性逻辑是融入的基本前提；抓住侧重点、精准对接各门大学生思想政治理论课程是融入的逻辑核心；坚持实践逻辑、引导大学生从“四史”中汲取智慧和力量是融入的根本遵循。     

An additive–multiplicative mean model for panel count data with dependent observation and dropout processes

This paper discusses regression analysis of panel count data with dependent observation and dropout processes. For the problem, a general mean model is presented that can allow both additive and multiplicative effects of covariates on the underlying point process. In addition, the proportional rates model and the accelerated failure time model are employed to describe possible covariate effects on the observation process and the dropout or follow‐up process, respectively. For estimation of regression parameters, some estimating equation‐based procedures are developed and the asymptotic properties of the proposed estimators are established. In addition, a resampling approach is proposed for estimating a covariance matrix of the proposed estimator and a model checking procedure is also provided. Results from an extensive simulation study indicate that the proposed methodology works well for practical situations, and it is applied to a motivating set of real data.     

Midwifery management of second-degree perineal tears in New Zealand: A cross-sectional survey of practice

Background

Second-degree tears are the most common form of perineal trauma occurring after vaginal birth managed by New Zealand midwives, although little is known about midwives’ perineal practice.

非线性货币政策规则、通胀预期与不确定性

逆序构建了 LSTＲ-NLＲE 模型， 并利用 2000． I ～ 2016． III 的季度数据对我国 LSTＲ 货币 政策规则的非线性与非对称性、最优阈值、阈值和转移速度对不确定性的影响进行了实证研 究． 逆序建模表明，对于 LSTＲ-NLＲE 系统， 若使最优非线性货币政策规则具有 LSTＲ 的形式， 则非线性菲利普斯曲线具有指数形式． 实证研究表明: 我国货币政策呈现非线性与非对称特 征， 且我国通胀预期的阈值与通胀波动幅度相关， 当通胀波动较大时， 通胀预期的阈值较高， 2000． I ～ 2011． III 的阈值为 3% ， 当通胀呈趋势变化且波动较小时， 通胀预期的阈值较低， 2011． IV ～ 2016． III 的阈值为 2． 33% ． 同时，合理的通胀目标( 区间) 对非线性货币政策调整至 关重要． 进一步，我国货币政策不确定性效应受阈值影响较大，受转移速度影响较小． 在高机制 状态下，LSTＲ 规则更易稳定产出，但却易导致通胀不确定性; 在低机制状态下，LSTＲ 规则不仅 有较长滞后期，而且易导致产出不确定性，但却更易稳定通胀． 中央银行应依据稳定产出和通 胀的意愿程度，来管理通胀预期: 如果中央银行更倾向于稳定产出， 则应使通胀预期位于阈值 水平之上，以使货币政策处于高机制状态; 如果中央银行更倾向于稳定通胀， 则应使通胀预期 位于阈值水平之下，以使货币政策处于低机制状态．     

Water and the History of China*

Water is the source of all life, and is closely related to human civilization. It had a special significance in China, so the ancient Chinese created the dragon god as a symbol of China, the Chinese and Chinese civilization. It can be said that the unique hydrological conditions on the territory of China created three great historical miracles: China, the Chinese people, and Chinese civilization. The Chinese have dedicated more effort than people in any other countries to water control and water use in order to make effective use of water resources and prevent flooding. It is their unparalleled achievements that have laid the foundation for these three miracles. Today, the Chinese people are facing unprecedented challenges in water control and water use. Exploring the historical Chinese relationship with water offers a good opportunity to understand the important role that water plays in long-term social development.