基于采购协议价格的VMI协调机制研究

供应商管理库存（VMI）是供应链上库存管理的一种新思路。在VMI模式下,供应商共享零售商的库存信息,从整体上进行决策以降低供应链的总体成本。但由于商承担了零售商的库存管理,获得的利润可能会减少,从而造成其责任和利益的不统一。基于单一供应商和单一零售商的两阶段模型,假定顾客需求随机并且允许缺货,在分析VMI实施前后双方利润变化的基础上,提出了协议价格这种供应链协调机制,以保证VMI的有效实施。     

基于采购层面的库存管理

如何保持适量的库存一直是困扰企业的难题。企业为了保证供应的连续性,往往会采取高库存的方式。然而高库存不仅导致库存成本上升和企业资金的占用,而且会掩盖企业暗藏的众多管理问题。降低库存是持续运营企业必须面临和首先解决的问题。高库存的产生是企业众多部门相互牵制和信息不公开等诸多原因的作用结果。采购作为库存管理的＂咽喉＂部门,可以采取加强与相关部门的信息化建设、利用各种采购技术和加强与供应商合作等方式来为企业保持适量库存而努力。     

浅谈医院物资采购及库存管理的着力点

随着医改的进一步推进,医院高层对医院物资采购及库存管理要求更高,加强物资采购及库存管理,不仅有利于医院经营成本的降低、医院经济效益的提高,而且可以有效遏制物资采购领域腐败现象的出现。文章通过研究相关文献并进行实地调研,系统分析部分医院在物资采购和库存管理方面存在的问题,提出健全规章制度、监控物资采购活动、加强管理中标合同、严格对账制度、强化监督检查等强有力措施,为其他医院进行物资采购及库存管理提供借鉴。     

基于VMI的国内零售业库存管理模式研究

国内传统零售业库存管理方式存在一定的局限性和缺陷,制约了国内零售企业的发展。提出了我国零售业库存管理的运作模式,分析了该模式在我国零售企业中的运作效益,并对国内一家零售企业进行了实证分析。研究目的是通过此模式的提出对我国零售业的发展起到推动作用。     

基于VMI的汽车配件原材料库存管理策略研究

企业唯有进行科学的库存管理,在预防风险和损失的情况下,保持最低的库存量,才能真正提高企业竞争力。本文以BL汽车配件有限公司(以下简称"BL公司")为实例,分析其库存管理中存在的问题,进而提出基于VMI(供应商管理库存)的库存控制对策,从而有效规避库存风险。     

血站物资采购库存一体化管理浅析

物资管理是血站后勤工作重要的组成部分。文章从血站物资管理的要求和特点出发,对物资保障的目标、要点等进行了详细阐述。对物资从计划、采购、库存、合同、动态分析等进行全方位管控的方法和内容做了说明,并按可视化、可控化和数字化实现物资采购与库存的一体化管理。     

供应商管理库存(VMI)在我国的实施探讨

VMI作为一种新的管理思想,近年来越来越受到人们的关注。由于我国企业对VMI这种先进的库存管理模式的应用处于起步阶段,因此实施VMI时企业需要具备什么样的条件,也成为企业成功应用VMI前提条件。文章首先介绍了VMI的概念及其特点,阐述了实施VMI的优点。就如何能够成功实施VMI进行了深入的、全面的探讨,结合我国企业的实际情况,分析了VMI在我国实践应用中所面临的问题,并对其分别给出了解决建议。     

基于供应链管理的EPC项目物资采购模式

首先对EPC项目采购的定义及其重要性进行了介绍,在分析传统EPC项目采购中存在问题的基础上,结合EPC项目的供应链管理特点和目标,得出了将供应链管理应用于EPC项目采购模式的优点。最后提出了基于供应链管理的EPC项目采购管理模式的实现途径,以期对EPC项目采购管理的优化有所帮助。     

浅谈如何做好中低压配网管理工作

本文结合笔者从事中低压配网管理工作的经验,从多方面对中低压配网的管理工作进行了探讨,供同行人员参考。     

基于供应链理论的物资采购问题研究

物资采购管理是供应链管理中重要的一环,对企业降低运营成本起到至关重要的作用.传统的物资采购方式已不能满足新形势下企业采购的需求,需要总结基于供应链理论的物资采购管理及实施要点,以便于提高企业物资采购的效益.     

浅谈军队物资网络化采购

军队物资网络化采购，是指军队物资采购机构借助有关信息技术和网络工具，从供应商处采购军队物资的活动。由于突破了时间、空间和信息三大障碍，扩大了竞争范围，提高了采购效率和效益，降低了采购成本，军队物资网络化采购已经成为一种不可阻挡的趋势。     

Human settlement＇s social network analysis based on spatial trend surface model：a case study of Chongqing Municipality

Integrated with GIS and remote sensing（RS） technology,a systematic analysis and its methodology for human-settlements social environment has been introduced.This methodology has been called spatial trend field model（STFM）.STFM＇s application history in the field of human-settlements social environment has been discussed at first.Then,some index data models have been created through STFM,which include population density trend field,human activity strength trend field,city-town spatial density trend field,urbanization ratio trend field,road density trend field,GDP spatial density trend field and PER-GDP spatial density trend field.With all above-mentioned indexes as input data,through Iterative Self-Organizing Data Analysis Techniques Algorithm（ISODATA）,this paper makes a verification study of Chongqing municipality.The result of the case study confirms that STFM methodology is credible and has high efficiency for regional human-settlements study.     

基于网络环境下知识管理的内容与模式研究

对知识的生产、交流、利用、评价和改进等过程加以管理,充分发挥员工积极性以促进知识创新,从而挖掘并共享隐性知识,是知识管理的主要内容。因此,对知识管理的模式做了有益的探讨。     

A study of virtual land trade between China and ASEAN based on material flow analysis model

In this paper,based on the material flux analysis model（MFA） and its corresponding theories and algorithms of ＂virtual land＂ virtual land contents of five primary agricultural products are calculated and＂Virtual land trade＂hidden in those imported and exported products are also obtained through analyzing the primary agricultural product trade between China and ASEAN. In the process of calculationl following the thought of Changing agricultural products to ＂Virtual land trade＂land content, trade condition and spatiai distribution of agricultural products Were integratedly considered. indicate that China exported 73;057 km^2 of virtual land area to ASEAN by tea, vegetables; maize and grain, ASEAN exported： 57.332 km^2 to China by natural rubber from 2002 to 2005. It obvious; that china has lost 15,725 km^2 arable land through agricultural product trade, Additionally, in order to process： of calculation Virtual land trade, Thailand taker as an example to analyze its international trade of rice and Wheat from 1991 to 2005 and Calculate their ＂Virtual land trade＂ 2001 through 2005. According to and calculation, it is not difficult to conclude that ＂Virtual land trade＂ very important and could be used for China to guide agricultural export or import Structure and maintain Sustainable use of land resources.     

Suitability evaluation of regional coastal ecotourism based on SOM neural network model:a case study of Qingdao,Yantai,Weihai and Rizhao of Shandong Province

Development of coastal ecotourism has been a,focus of Shandong government, and the suitability evaluation of regional eoastai ecotourism is crucial for the reasonable plan and sustainable development of Shandong coastal ecotourism. By using MATLAB language to establish a SOM neural network model, this＇ paper evaluates the eoastal ecotourism suitability of four regions, Qingdao. Yantai, Weihai and Rizhao of Shandong Province and divides 33 subordinate regions of those four cities into four categories, i.e. regions poorly suitable for ecotourism resources, regions highly suitable for coastal ecotourism, regions secondly suitable for coastal ecotourism, regions ordinarily suitable.for coastal ecotourism, Related suggestions on development of regional coastal ecotourism have been given in the final conclusions.     

网络环境对科普的影响及对策

进入21世纪以来,网络化的进程发展迅猛,科学普及工作已然进入了网络化智能化的时代。网络科普工作相对于传统的科普有着自己的特点,它存在于网络坏境之中,受到网络环境的影响较大。通过对网络环境的分析,能够找出网络环境影响科学普及的症结所在,从而提高科学普及的效率。     

中国数字经济产出的空间关联网络结构与影响因素研究

基于2007—2017年中国区域投入产出数据,使用修正的引力模型测算与识别中国数字经济产出的空间关联,并运用社会网络分析方法(SNA)及二次指派程序(QAP)对中国数字经济增长的空间特征及影响因素进行实证分析.研究发现:样本期内,中国数字经济产出空间关联整体网络"中心-外围"结构稳定,并呈现出密度提升、关联程度提高的趋势.根据不同省市在关联网络中的位置,可将整体网络划分为双向溢出、净溢出、净收益与经济人四大板块.数字经济产出空间关联受消费水平、产业结构、数字基础设施、数字治理水平、开放水平、移动端数字设备相对差异等因素的影响.     

基于城市空间结构和交通区位分析的轨道交通线网布局方法研究

城市轨道交通线网的布局合理与否,将直接影响未来城市的发展和空间结构的形成.应用交通区位理论,将“点、线、面”三要素层次分析法与之相结合,并进行控制点优化,从而提出一种基于城市空间结构及交通区位分析的线网布局方法,并以哈尔滨市为实例分析,将此方法应用于目前轨道网的调整规划之中,得到较为合理的轨道交通线网布局规划方案.     

The effects of mergers and acquisitions on the firm size distribution

This paper provides new empirical evidence on the effects of mergers and acquisitions (M&As) on the shape of the firm size distribution, by using data of the population of manufacturing firms in the Netherlands. Our analysis shows that M&As do not affect the size distribution when we consider the entire population of firms. When we focus on the firms involved in an M&A event, we observe a shift of the firm size distribution towards larger sizes. Firm size distribution becomes more concentrated around the mean, less skewed to the right hand side, and thinner at the tails as a whole. The shift toward higher sizes due to M&A is not uniform but affects firms of different sizes in different ways. While the number of firms in the lower tail decreased, the number of firms in the central size classes increased substantially and outweighed the increase in the number (and mean size) of firms in the upper tail of the distribution (consequently the overall market concentration measured by the Herfindahl index declines). M&As lead to a departure from log-normality of the firm size distribution, suggesting that external growth does not follow Gibrat’s law. Our counterfactual analysis highlights that only internal growth does not affect the shape of the size distribution of firms. On the contrary, it suggests that the change in the size distribution is almost entirely due to the external growth of the firms.

The model and empirical estimation of the optimal flexibility of RMB exchange-rate regime: A study based on the price-stabilization

Under the Mundell-Fleming-Dornbusch (M-F-D) framework, the paper develops a stochastic model to study the optimal choice of RMB exchange rate regime based on two objectives, namely the exchange rate stabilization and price stabilization. The paper finds that different policy objectives will lead to different optimal choices of RMB exchange-rate regime. If the central bank aims to stabilize the price level, the optimal choice would be a certain type of intermediate regime, or the optimal choice would be a fixed one if it aims to stabilize the RMB exchange rate. Based on the model, the paper empirically estimates China’s open economy parameters and uses them to estimate the optimal flexibility of RMB exchange rate regime. The paper points out that China should allow more exchange rate changes to absorb its foreign exchange market pressure in order to stabilize the general price level, which indicates that China should move toward a more flexible exchange rate regime.