基于供应链管理的供应商选择问题初探

在现阶段的发展过程中,现代化发展已经成为企业未来发展的基本方向。作为企业实现现代化发展的关键环节,供应链的管理工作在整个企业运行过程中起到了举足轻重的作用。伴随着供应链管理的发展,供应商的选择问题越来越多,选择要点和选择内容不断丰富,并逐渐发展成为企业采购过程中所有采购员共同面对的问题。根据企业的发展现状和运营情况,选择更合适更合理的采购方案和供货商,并遵循行业准则来制定企业采购规则。     

Supplier selection and partnerships: Effects upon restaurant operational and strategic benefits and performance

This study focused on identifying strategic criteria involved in selecting suppliers of restaurant products/services specific to casual dining, full service independent restaurants to obtain operational and strategic benefits for those managers operating in this highly competitive marketplace. A total of 765 responses were obtained from managers at independently owned restaurants throughout the U.S. Results revealed that ‘product’ and ‘financial/technical’ criteria had significant and positive effects upon operational benefits, while ‘product’ and ‘service’ had positive effects upon strategic benefits. When the sample was segmented into low and high supplier partnership groups, the positive effects of ‘financial/technical’ and ‘cost/price’ were significantly greater for the ‘high’ partnership group pertaining to operational benefits. ‘Product’ and ‘service’ and their effects upon strategic benefits were greatest for the high partnership group. Based on our findings, implications, limitations, and recommendations for future studies have been provided.     

Integrated planning for product selection,shelf-space allocation,and replenishment decision with elasticity and positioning effects

As the retail industry is growing larger and more diversified, retailers' decisions about product selection, shelf-space-allocation, and replenishment become more important and challenging. This paper is to present a model for shelf-space allocation with product selection and replenishment decisions to maximize the retailer's profit. The model is based on a two-dimensional display space in which all shelves and products have widths and heights and includes factors that influence demand for each product, such as space and cross-space elasticities and positioning effects. The integrated model presented is mixed-integer non-linear programming (MINLP) because the demand function is non-convex. This research proposes two heuristic algorithms (tabu search and genetic) to solve the MINLP problem. The results show the effectiveness and efficiency of these algorithms by comparing the outputs to the MINLP optimal solution for small data sets and comparing the algorithm performances for large data sets. The solution methodologies expect to support a simultaneous decision-making process for retailers to maximize their revenue.     

新型煤炭企业物资供应人才内涵与选用标准

介绍了新型煤炭企业物资供应人才的内涵,构建了安全效益、经济效益和管理效益3个维度;分析了选用新型煤炭企业物资供应人才的3大标准,提出了从道德品质、素质能力、态度观念等方面着手的观点,对实践具有重要指导和参照意义。     

Is socially responsible investment useful in Mexico? A multi-factor and ex-ante review

The present paper continues the firsts reviews made to socially responsible investment in Mexico. We extended these reviews by using a non-parametric multivariate equality test, along with a multi-factor market cap model, and a Monte Carlo simulation. Our results show that the IPCS index, the IPCcomp and the IPC have a statistically equal mean-variance performance, suggesting that this sort of investment style (SRI) is a good substitute of the broad market investment style in the long term. Among the causes of this finding is the fact that the IPCS and the IPCcomp indexes have almost the same large and small cap stock concentration and the IPC index (a large-cap one) is not as diversified and mean-variance efficient as the former.     

A Reexamination of Credit Rationing in the Stiglitz and Weiss Model

We reexamine Stiglitz and Weiss (1981) credit rationing by simultaneously considering adverse selection and moral hazard. If returns of the projects are ranked by first‐order stochastic dominance, neither adverse selection nor moral hazard exists. If the projects have equalized expected returns, moral hazard does not exist, and credit rationing due to adverse selection occurs under extreme conditions. If the projects are ranked by second‐order stochastic dominance (SSD), adverse selection and moral hazard may coexist, logically restoring credit rationing, but SSD imposes strict limitations on lenders’ ability to classify borrowers. In general, our results do not support significance of credit rationing.     

晚清常熟静圃园林植物应用探析

文人园林营建过程中,园居植物的获取、选择、栽培以及品赏亦是一个较为复杂而必备的过程。江南常熟静圃(现名赵园)为晚清文人赵烈文所建。通过分析赵烈文撰写的《能静居日记》,并结合其他史料考证,在当时沿袭的文人审美标准下对同治四年至光绪十三年静圃中的植物应用过程及方式进行阐释,旨在获得关于晚清时期江南文人园林植物的历史性认识：静圃建园过程中植物主要通过苏州花肆购买、友人间赠送以及与种树人直接交易等方式获取;园中植物虽以地景、盆景区分,但种类选择与高濂、文震亨、李渔等给出的品赏范围并无明显差异;在定期维护的基础上,须保证后园可四时赏花,其中以春桃、夏荷、秋菊、冬梅为最,且植物的实用功能一直被延续。     

基于改进TOPSIS法的供应商选择模型研究

为有效地帮助企业快速找到合适的供应商合作伙伴,采用直觉模糊集、评分函数等方法对TOPSIS评估法进行优化,并以此为基础建立了一种供应商选择模型。首先,采集和评估供应商的产品质量、产品价格、产品交货的可靠性、供应位置、财务情况、库存水平、劳资关系、发展能力和技术能力等相关信息,由专家给出主观评估信息,汇总为综合属性值;然后,通过直觉模糊熵确定各评估指标的权重;最后,综合考虑供应商选择决策过程中的多个目标和标准,应用改进TOPSIS法的对供应商进行分类选择。结果显示,基于改进TOPSIS法的供应商选择模型能够较准确地反映出各供应商的真实水平和对企业的潜在价值,可以有效地解决不确定条件下对供应商的选择问题,提高了供应商选择结果的可靠性。改进后的模型简便易行,具有良好的稳定性,对于合理制定企业供应商选择标准以及进一步优化决策模型具有一定的借鉴意义。     

From cultivation to culture: Wheat farming and sex selection in China

Sex selection has been linked to son preference and discrimination against girls in many Asian countries. In this study, we shed light on the shaping role of rice–wheat cropping system to the subsequent gender inequality in China. Using an individual-level dataset compiled from a national scale survey and an archaeology publication, we show regional differences in gender inequality across China: parents show strong gender discrimination against girls in wheat regions. And 15.2 percentage points more parents from wheat regions engage in successful sex selection than those from non-wheat regions. The mechanism analysis reveals that women empowerment matters.     

利用无人机标定雷达精度的新方法

针对现有雷达标定系统存在的使用成本高、组织实施不方便、真值获取手段不可靠等一系列问题,提出了利用搭载“北斗”卫星定位系统的旋翼无人机作为探测目标的三坐标雷达精度标定新方法。设计了基于该方法的三坐标雷达标定系统方案,研究了系统实现所需的关键技术,最后给出了系统样机的试验结果。结果表明,该方法能够真实反映三坐标雷达的系统误差,与传统雷达标定方法相比,更加经济、简便、灵活。