城市供水管网系统工况分析的研究

通过分析实际供水管网系统的特征，对管网工况分析所涉及的几个尚未解决的计算问题进行了研究，提出了用计算机进行工况分析的思路与框架，为管网运行调度及研究管网水质模型打下了良好基础．     

大量定制环境下基于延迟制造的多级供应控制模型研究

针对大量定制环境下延迟制造活动的特点,提出将客户订单分离点(CODP)前移到供应商流程内部实现供应延迟,给出了基于延迟制造的多级供应控制生产计划模型,研究了面向多级供应控制的物料清单(BOM)和产品设计问题。     

Understanding the emergence of redistributed manufacturing: an ambidexterity perspective

Abstract

This paper extends operations strategy theory on efficiency and flexibility trade-offs to the emergent phenomenon of redistributed manufacturing (RDM). The study adopts a multiple-case design including five small and five large pharmaceutical firms. We propose that organizations can gain the efficiency benefits of centralized manufacturing and the flexibility advantages of RDM by building an ambidexterity capability. To build such a capability, large firms can structurally partition their manufacturing and supply management functions, with one sub-unit managing centralized production and the other RDM. Smaller enterprises can build an ambidexterity capability by creating the right organizational context, where multi-skilled workers switch between efficient and flexible tasks. This paper contributes to theory by explaining the emergence of RDM using an organizational ambidexterity lens, laying the groundwork for new theory development in the field. We provide managers with a practical example of how to build an ambidexterity capability to realize flexibility and efficiency advantages.     

A framework for food supply chain digitalization: lessons from Thailand

Abstract

The promise of digitalization is enormous and nowhere is it more critical than in its potential to transform food supply chain. Consumers have become more educated and are demanding real-time updated information on foods they consumed through digital media. They are also increasingly demanding to know if the foods they consume are environmentally and socially sustainable or not. As a result, food product traceability, safety, and sustainability issues have become crucial concerns to food retailers, distributors, processors, and farmers. Digitalization allows food supply chains to be highly connected, efficient, and responsive to customer needs and regulation requirements. However, digitalizing a traditional food supply chain is challenging and resource demanding. This is more so for developing countries where moving food from farms to consumers can take months as it travels through an array of middlemen. Unfortunately, little is available in the existing literature on food supply chain digitalization. So far, current researchers mainly explore the benefits of digitalization. Using cases in three companies, this paper explores the practices, challenges, and opportunities faced by Thailand food manufacturers in digitalizing their food supply chains. A framework for food supply chain digitalization is proposed and its implications for research and practices are discussed.     

基于排队论的业务流程重组绩效分析方法

竞争的激烈化和顾客需求的多样化迫使企业从根本上重新思考企业过程重组。企业过程重组(BPR)的原则之一是横向集成活动。但是横向集成活动究竟有没有提高企业的绩效,这是个值得研究的问题。本文运用排队论的数学模型,研究活动合并对企业流程绩效之一——成本的影响,详细地讨论了活动的成本要素,比较了重组前后成本的变化。     

灰色动态预测模型在货币供应量预测中的应用

在对金融系统中货币供应量的预测进行相关研究的基础上,介绍了符合金融系统预测规律的灰色系统动态预测法,并根据中国货币供应量的实际数据进行了实证的预测检验。结果显示,这种方法简单,不需要借助于其他任何时间序列数据,需要数据量少,预测精确度高,对于近期预测尤其准确,也可进行中长期预测;实证预测结果也符合我国金融系统中货币供应量预测的实际。     

农村公共物品供给与农民收入增长相关性分析

农村公共物品供给短缺是农民收入增长和城乡协调发展的重大障碍,其形成原因主要有城乡"二元供给体制"、政府职能残缺、融资体制障碍等。建立农村公共物品供给与农民收入增长相关性分析模型,验证了农村公共物品供给不足对农民收入增长的重大影响。据此,文章提出协调城乡经济发展、保障农村公共物品供给的对策设计。     

Jacob Mincer and Labor Supply–Before and Aftermath

This paper discusses the impact that Jacob Mincer's 1962 paper Labor-Force Participation of Married Women... had on the analysis and empirical estimation of the labor supply of married women, and the supply of labor in general. It is argued that this paper has revolutionized the analysis of labor supply. The sharp increase in married women's labor supply still constitutes a challenge to labor economists who try to explain the phenomenon in terms of income and price effects derived from cross-section studies. It constituted a puzzle to labor economists in the 1950s and 1960s, still captives of the notion of a backwards-bending supply of labor. Mincer combined a theoretical model distinguishing between three uses of time (leisure, work at home, and work in the market) and Friedman's distinction between permanent and transitory earning. He showed that the wage has a positive effect on married women's labor supply, and that this supply is more affected by transitory than by permanent income changes. The new theory serves as the scaffold on which Mincer builds the empirical estimation. The interplay between theory, data, and empirical estimation, and the ingenuity of the empirical research using scant data sources, made this paper the object of emulation. The ideas first discussed in this paper generated many of the developments in the analysis of labor supply witnessed over the last four decades.     

美国"新经济"的"旧经济"解析及其启示

"新经济"概念首先在美国兴起,随后迅即在世界范围内广泛传播与使用.究竟什么是"新经济"?"新经济"究竟"新"在哪里?采用总需求-总供给模型,对美国"新经济"现象进行理论分析需求的拉动和供给的推进是美国出现"新经济"的原因;技术创新和外需主导型战略的实施拉动了总需求;信息技术(产业)、全球化以及"里根经济学"的长期效应使AS得以持续扩张.其成功之处对我国经济发展同样具有重要的借鉴价值.     

关于供销社参与农业产业化建设的思考

供销社作为传统的农民服务组织,在为"三农"服务中做出了巨大贡献,在市场经济时期、在我国即将加入WTO时,供销社又将如何参与好农业产业化建设、使供销社能随着农业产业化的发展而发展.本文作者就供销社如何参与好农业产业化建设提出了自己的见解.