华人差序式领导对员工职场非伦理行为的影响——基于圈内人身份认知的视角

随着安然、文凭门等国内外伦理事件的相继发生,组织及其员工非伦理行为正逐渐成为组织管理理论界与实践界普遍关注的问题和焦点。但现有研究多集中于对非伦理行为本身及其个体诱因的探讨,却缺乏对领导风格与非伦理行为之间的关系与作用机制的研究。鉴于此,文章从带有中华文化特色的"差序式领导"和"圈内人身份认知"等角度入手,拟采取实验、问卷调查、案例等多种方法,通过对领导层面的影响机制、个体层面的影响机制和复合层面的影响机制等多个层面的实证研究,对员工职场非伦理行为进行深入探讨,并对其中直接效应模型、中介效应模型及调节效应模型进行检验分析,进一步优化相关领域所采用的研究方法。     

国有部门与非国有部门的工资差异及影响因素研究

基于CGSS数据，利用Heckman样本选择模型对中国国有部门与非国有部门的工资差异和影响因素进行系统研究。回归结果显示，国有部门员工的教育收益率高于非国有部门，教育收益率与学历水平呈现正相关关系，与非国有部门相比，国有部门中大学本科及以上学历员工的教育收益率更高。工资差异分解结果表明，两部门全样本工资差异中市场歧视占比高于特征差异占比，与全样本相比，大学本科及以上学历员工的工资总差异和特征差异占比更高，系数差异占比更低，说明高学历群体中部门间工资差异更为明显，而且两部门中仍存在较严重的劳动力市场分割和就业歧视问题。因此，政府应努力消除劳动力的流动性障碍，深化国有部门市场化改革，制定更为合理的工资机制，以促进中国经济的持续健康稳定增长。     

The Taylor Rule and “Opportunistic” Monetary Policy

We investigate the possibility that the Taylor rule should be formulated as a threshold process such that the Federal Reserve acts more aggressively in some circumstances than in others. It seems reasonable that the Federal Reserve would act more aggressively when inflation is high than when it is low. Similarly, it might be expected that the Federal Reserve responds more to a negative than a positive output gap. Although these specifications receive some empirical support, we find that a modified threshold model that is consistent with “opportunistic” monetary policy makes significant progress toward explaining Federal Reserve behavior.     

PRICING ASIAN OPTIONS FOR JUMP DIFFUSION

We construct a sequence of functions that uniformly converge (on compact sets) to the price of an Asian option, which is written on a stock whose dynamics follow a jump diffusion. The convergence is exponentially fast. We show that each element in this sequence is the unique classical solution of a parabolic partial differential equation (not an integro‐differential equation). As a result we obtain a fast numerical approximation scheme whose accuracy versus speed characteristics can be controlled. We analyze the performance of our numerical algorithm on several examples.     

Reformulating Environmentally Constrained Traffic Equilibrium via a Smooth Gap Function

Various government laws have recently been enacted to alleviate the environmental deterioration of transportation systems. Environmental constraint is a valid means to explicitly reflect various environmental protection requirements imposed by the government. In this paper, we examine the environmentally constrained traffic equilibrium problem (EC-TEP), which is a fundamental tool for modeling and evaluating environmental protection requirements. Specifically, we provide an equivalent reformulation for the EC-TEP. The proposed reformulation adapts the concept of gap function to simultaneously reformulate the nonlinear complementarity conditions associated with the generalized user equilibrium conditions, environmental constraints, and conservation constraints as an equivalent unconstrained optimization problem. This gap function reformulation has two desirable features: (1) it can handle a general environmental constraint structure (linear or nonlinear; link-based or area-based) and a general link and route cost structure, enhancing the modeling adaptability and flexibility; (2) it is smooth and unconstrained, permitting a number of existing efficient algorithms for its solution. A gradient-based solution algorithm with a self-regulated averaging stepsize scheme is customized to solve the reformulated unconstrained optimization problem. Numerical examples are also provided to demonstrate the modeling flexibility of the proposed EC-TEP reformulation.     

中国CO_2排放与经济增长联动性实证分析

笔者在测算我国1953年～2007年间CO2排放量的基础上,通过对数据的经济计量检验,建立联立方程组模型,研究CO2排放量与人均GDP间双向因果关系,并分析各种因素对CO2排放量的影响。实证结果显示,我国CO2排放量与人均GDP间变动关系并不是简单EKC模型中的倒U型,有着更为复杂的相互作用关联。人均GDP提高导致CO2排放量上升的同时,能源利用效率的提高、能源消费结构的改善,以及资本设备更新速度的加快,都将减少CO2排放。     

凹槽差动式窄缝消能工的设计与研究

目前在河岸式多孔溢洪道上应用窄缝挑坎消能工,都是采用沿闸墩后用长墩隔开,至出口墩体升高加厚、急剧收缩成窄缝的结构形式,全程隔墩混凝土用量大,而且侧向水压力荷载强大影响到工程投资、结构安全与泄洪运行管理。本设计提出省去中隔墩,溢洪道出口在连续挑坎基础上增加凹槽式窄缝,借以实现继续应用收缩射流消能工。经模型试验表明：通过分段连续坎与窄缝的差动作用,加大入水面积和碰撞几率,水流在注入下游河床前空中消能充分,消能效果良好,值得在水利水电工程中推广应用。     

输液生产后设备清洗残留物质监测方法的探讨

文章探讨大容量注射剂生产设备清洗后残留物质检查的方法,使用输液生产常用的原辅料及清洗剂,配制一定浓度,根据其化学性质分别采用测定pH值、电导率、旋光度、鉴别反应等方法,确定检测方法数据,从而控制残留物限度。     

预应力混凝土桥梁钢束锈蚀分析

针对锈蚀钢束与混凝土间存在的粘结与滑移问题,基于桥梁分析中常用梁单元的特点,以Saenz公式和Skogman公式分别作为混凝土和预应力钢束的应力-应变本构关系,采用非线性弹簧模拟,提出刚臂元-非线性弹簧元-钢束元的方法,对锈蚀钢束与混凝土之间的粘结滑移进行分析。并以具体工程实例进行了分析计算,证明了所提出的方法用于预应力混凝土桥梁关于钢束锈蚀非线性分析的有效性。     

我国现阶段贫富差距的经济学分析

改革开放以来,在经济增长的同时我国的贫富分化现象也日益严峻,体现在基尼系数的变化、城乡收入差距的扩大、行业差异、地区差距、居民家庭财产集中度等一系列领域。传统城乡二元经济结构的存在、不合理的社会保障模式、经济领域的不平等竞争是导致贫富差距扩大的主要原因。政府必须利用各种经济、法律手段调节收入分配,缔造公平的竞争环境,同时加强以社会保障为主体的制度建设。