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Product Portfolio Decision-making Method Based on Multiple Bottlenecks 基于多瓶颈的产品组合决策方法
Lipeng Wang, Chunqi Li
Determining the appropriate product mix solution is one of the important production system decisions for manufacturing companies. Based on the traditional method of identifying bottlenecks in the theory of constraints, this paper proposes a heuristic method that considers all constraints simultaneously and assigns weights to all constraints in five steps to address the infeasibility of the traditional theory of constraints in product mix decisions under multiple resource constraints. The paper also illustrates the feasibility, simplicity and ease of use of the new method through a simulation example.
确定合适的产品组合方案是制造企业重要的生产系统决策之一。本文在传统约束理论中瓶颈识别方法的基础上,提出了一种同时考虑所有约束并分五步对所有约束赋权的启发式方法,解决了传统约束理论在多资源约束下产品组合决策中的不可行性问题。文中还通过一个仿真实例说明了该方法的可行性、简单性和易用性。
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引用次数: 0
Research on the Innovative Development of Interdisciplinary Talent Training for University Students in the Integration of Community Group Buying and New Rural Logistics 社区团购与新农村物流融合下大学生复合型人才培养创新发展研究
Jiali Zhu, Rouhua Wang
This paper is the stage result of a study on the innovative development of college students who are instructed by teachers to participate in interdisciplinary integration. In the area of interdisciplinary talent training for foreign language majors in higher education institutions, Changchun Institute of Technology has incorporated a core course in logistics management — Logistics. The study of this course has led to a great interest in interdisciplinary integration. The interdisciplinary training students have not only participated in the innovation development related competitions and achieved good results, but also the teachers and students have jointly conducted theoretical and practical research on the integration model of community group purchase and new rural logistics. This paper proposes a new model of integration of community group purchase and new rural logistics: two-way — double network — double platform "ecological logistics". The future application of this model is a useful support to the rural revitalization of China.
本文是对教师引导大学生参与跨学科整合的创新发展进行研究的阶段性成果。在高等院校外语专业复合型人才培养方面,长春工程学院开设了物流管理核心课程——物流。这门课程的学习引起了人们对跨学科整合的极大兴趣。跨学科培养的学员不仅参加了创新发展相关竞赛并取得了良好的成绩,还与师生共同开展了社区团购与新农村物流一体化模式的理论与实践研究。本文提出了社区团购与新农村物流融合的新模式:双向-双网络-双平台“生态物流”。这一模式的未来应用将为中国乡村振兴提供有益的支持。
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引用次数: 1
Research on the Motivation and Effect of Ningbo Bank’s Convertible Bond Financing 宁波银行可转债融资的动因与效果研究
Liangchen Zhang, Xiaobing Fang
In recent years, due to the slowdown in market economic growth, the strengthening of capital flow supervision, and the rise in credit risk, China commercial banks have seen a downward trend in asset quality and capital adequacy ratios. Increasingly stringent regulatory requirements have also made capital adequacy ratios as an important assessment standard. As the profitability of some small and medium-sized banks is worrying, the space for internal capital replenishment such as traditional profit conversion and dividend conversion is gradually reduced. External sources such as convertible bonds have become the first choice for bank financing. Although commercial banks have begun to use convertible bond financing as the main direction of replenishing capital, issues such as the uncertainty of issuance and conversion, the large issuance scale, and the low stock price, and the difficulty of conversion, are still worth noting. This article will take the first china city commercial bank convertible bond "Ningbo bank Convertible Bond" as an example, study the process and effects of its issuance, and provide suggestions for listed state-owned and city commercial banks with convertible bond
近年来,由于市场经济增速放缓,资本流动监管加强,信贷风险上升,中国商业银行的资产质量和资本充足率呈下降趋势。日益严格的监管要求也使得资本充足率成为重要的考核标准。由于部分中小银行盈利能力堪忧,传统的利润转换、分红转换等内部资金补充空间逐渐缩小。可转债等外部来源已成为银行融资的首选。虽然商业银行已经开始将可转债融资作为补充资本的主要方向,但发行和转换的不确定性、发行规模大、股价低、转换难度大等问题仍然值得注意。本文将以中国第一家城市商业银行可转债“宁波银行可转债”为例,研究其发行过程和效果,并为上市国有和城市商业银行发行可转债提供建议
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引用次数: 0
A Study on Quality-of-Life Perception of Informal Employment in Urban Tourism 城市旅游业非正式就业的生活质量感知研究
Jiajia Xu
In previous studies on the impact of tourism development on the quality of life of urban residents, it is difficult to reduce the interference of non-tourism factors and highlight the direct effect of tourism on the quality of life by treating urban residents as homogeneous groups. Taking five scenic spots in Fuzhou City as example, this paper focuses on the informal tourism employees among residents. Through the analysis of 151 convenience and snowball samples, it studies the composition of their quality of life, and compares the differences in the quality of life of different employees. The results show that, different from other residents, tourism informal employees pay more attention to leisure and entertainment, work prospects, family life, work status, social communication, consumption and safety, ability development and living conditions, accounting for 58.3%. In areas where interpretation is large, happiness is generally low. The study further shows that the well-being of employed people with different demographic characteristics and employment conditions is not different in most areas of quality of life, their overall well-being is highly similar, and their well-being is at a medium level.
在以往关于旅游发展对城市居民生活质量影响的研究中,将城市居民视为同质群体,难以减少非旅游因素的干扰,突出旅游对生活质量的直接影响。本文以福州市五大景区为例,对居民非正式旅游从业人员进行了研究。通过对151个便利和雪球样本的分析,研究其生活质量的构成,比较不同员工生活质量的差异。结果表明,与其他居民不同,旅游非正式员工更关注休闲娱乐、工作前景、家庭生活、工作状态、社会交往、消费与安全、能力发展和生活条件,占58.3%。在翻译量大的地区,幸福感普遍较低。研究进一步表明,不同人口特征和就业条件的就业人员的幸福感在大多数生活质量领域没有差异,他们的整体幸福感高度相似,他们的幸福感处于中等水平。
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引用次数: 1
Control of the Transaction Cost of the Business Purchase Based on the Block Chain 基于区块链的企业采购交易成本控制
Zhihong Li
The fierce competition in the market makes the enterprise enter into the times of the meager profit. Strict control of the cost in the production & operation becomes an inevitable trend. Usually, the cost of the enterprise consists of material purchase, processing and personnel management, etc. Of the different costs, the expenses of the material and human labor are becoming more and more transparent and leave less and less room to be controlled as the competition is more and more sharpened in the market. So, the enterprise must seek for the benefits from its various management like people, purchase and marketing, etc. Among these, the management of the purchase transaction cost is quite important. Therefore, the paper makes a relatively full study of the items concerning the transaction cost. First, the paper disentangles the business purchase and its features, then exposes the components of the transaction cost and its problems existing in the business purchase, and finally puts forward some tactics to control the transaction cost during the business purchase based on the block chain.
激烈的市场竞争使企业进入微利时代。严格控制生产经营成本已成为必然趋势。通常,企业的成本包括材料采购、加工和人员管理等。在不同的成本中,随着市场竞争的日益激烈,材料和人工的费用越来越透明,可控制的空间越来越小。因此,企业必须从人员、采购、营销等多方面的管理中寻求效益。其中,采购交易成本的管理尤为重要。因此,本文对交易成本的相关项目进行了较为全面的研究。本文首先梳理了企业采购及其特征,然后揭示了企业采购中交易成本的构成及其存在的问题,最后提出了基于区块链的企业采购过程中交易成本控制策略。
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引用次数: 0
Study on Timing and Selectivity of China’s Hybrid Mutual Funds 中国混合共同基金的时机选择与选择性研究
Yu Wu, Liangchen Zhang, Baili Yang
With the development of China's financial market, hybrid mutual funds have been favoured by the market because of their features of diversified investment objects, moderate risk and objective return rate of fund assets. This paper aims to analyze the management ability of China's hybrid mutual funds, particularly stock selection and timing ability. On this basis, the paper employs Jensen alpha model and Treynor-Mazuy Model (T-M model) to assess fund managers' stock selection and timing abilities respectively. It empirically implements Jensen's alpha and T-M model to samples of 415 China's existing hybrid mutual funds. The empirical results indicate that a) most of the mutual fund managers own strong stock selection abilities during the sample period but weak timing abilities; b) some of them have the abilities to select stocks outperformed the market as well as to time the market; c) the above abilities are positively related to the fund size in China's hybrid mutual fund market. Hybrid mutual funds in China have become an increasingly popular investment target and this paper helps to assess the performance of this financial instrument quantitatively.
随着中国金融市场的发展,混合型共同基金以其投资对象多样化、风险适中、基金资产收益率客观等特点受到市场的青睐。本文旨在分析中国混合共同基金的管理能力,特别是选股能力和择时能力。在此基础上,本文分别采用Jensen alpha模型和Treynor-Mazuy模型(T-M模型)对基金经理的选股能力和择时能力进行了评估。运用Jensen的alpha和T-M模型对中国现有的415只混合共同基金样本进行实证分析。实证结果表明:a)大多数共同基金经理在样本期内具有较强的选股能力,但择时能力较弱;B)他们中的一些人有能力选择表现优于市场的股票,并把握市场时机;c)上述能力与中国混合共同基金市场的基金规模呈正相关。混合共同基金在中国已成为越来越受欢迎的投资对象,本文有助于定量评估这一金融工具的表现。
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引用次数: 0
Study on the Correlation Analysis of Energy Consumption in Economic Industries and Evaluation of Carbon Emission Decoupling in Beijing-Tianjin-Hebei Region 京津冀地区经济产业能耗相关性分析及碳排放脱钩评价研究
Dan Wu, Chenhui Ji
A deep exploration of the correlation analysis of energy consumption in economic industries and evaluation of carbon emission decoupling in Beijing-Tianjin-Hebei region can provide important reference for its government departments in decision-making to accelerate the formulation and improvement of energy consumption control policies and systems. In this paper, by use of the grey incidence analysis, the correlation analysis model of energy consumption and economic growth in the economic industries of Beijing-Tianjin-Hebei region was built to analyse the correlation characteristics of industrial energy consumption and economic growth in BeijingTianjin-Hebei region. Meanwhile, based on the indexes of economic output value and carbon emission efficiency in Beijing-Tianjin-Hebei region, a carbon emission increment model was set up to measure the contributions of carbon emission structure increment and efficiency increment in the region. And the Tapio elastic coefficient method was adopted to identify the decoupling trend of carbon emissions in Beijing-TianjinHebei region. Finally, the corresponding countermeasures and suggestions were put forward to provide support for the government departments of Beijing-Tianjin-Hebei region to accelerate the formulation and improvement of policies and measures for decoupling economic growth from energy consumption and carbon emissions in the economic industries of this region.
深入探讨京津冀地区经济产业能耗相关性分析和碳排放脱钩评价,可为政府决策部门加快制定和完善能耗控制政策和制度提供重要参考。本文运用灰色关联分析法,建立了京津冀地区经济产业能耗与经济增长的关联分析模型,分析了京津冀地区工业能耗与经济增长的关联特征。同时,以京津冀地区经济产值和碳排放效率为指标,建立了碳排放增量模型,测度了京津冀地区碳排放结构增量和效率增量的贡献。采用Tapio弹性系数法识别了京津冀地区碳排放的脱钩趋势。最后,提出了相应的对策建议,为京津冀地区政府部门加快制定和完善京津冀地区经济增长与能源消耗和碳排放脱钩的政策措施提供支持。
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引用次数: 2
Personal Information Security in the Context of the Epidemic Prevention and Control 疫情防控背景下的个人信息安全
Qipeng Hu
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引用次数: 0
Research on Coordination Evaluation of Water Resources Utilization and Economic Development in Beijing 北京市水资源利用与经济发展协调评价研究
Dan Wu, Yue Li, Renxing Yang, Yanlai Jin
The coordination degree evaluation method is used to evaluate the coordination degree of industrial water utilization structure and industrial structure in Beijing. On this basis, it is suggested to design the evaluation index system for the coordination of water resources utilization and economic development in Beijing, and the grey correlation analysis method and coordination degree evaluation method are used to evaluate the correlation degree and coordination degree between the utilization of water resources and economic development in Beijing. According to the research, it is found that during the period from the "Eighth Five-Year Plan" to "Thirteenth Five-Year Plan", the extensive degree of industrial water utilization structure in Beijing has shown a significant decline, from 0.71 to 0.36; the partiality to high water consumption in Beijing has a slight fluctuation and decline, from 0.29 to 0.09; and the coordination degree between industrial water utilization structure and the industrial structure in China has increased from 0.54 to 0.82, changing from a "comparatively coordinated" state to a "coordinated" state. The grey correlation degree between water resources utilization and economic development in Beijing has shown a slightly upward trend, from 0.59 to 0.89. The coordination degree between water resources utilization and economic development in Beijing has a small fluctuation range, increasing from 0.83 to 0.87.
采用协调度评价方法对北京市工业用水结构与产业结构的协调度进行了评价。在此基础上,建议设计北京市水资源利用与经济发展协调性评价指标体系,并采用灰色关联分析法和协调性评价法对北京市水资源利用与经济发展的关联度和协调性进行评价。研究发现,“八五”至“十三五”期间,北京市工业用水结构粗放度呈现明显下降趋势,由0.71降至0.36;北京市对高耗水量的偏好有轻微的波动和下降,在0.29 ~ 0.09之间;中国工业用水结构与产业结构的协调度由0.54提高到0.82,由“比较协调”状态转变为“协调”状态。北京市水资源利用与经济发展的灰色关联度呈上升趋势,从0.59上升到0.89。北京市水资源利用与经济发展的协调度波动幅度较小,从0.83上升到0.87。
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引用次数: 0
The Investigation and Correction of the Mainstream Macroeconomics Theory in China’s Economic Practice 主流宏观经济学理论在中国经济实践中的考察与修正
Jing Cang, Fang-jeng Liu
Revealing the causes and mechanism of economic growth has always been a hot and core issue concerned and studied by economists and governments all over the world. To analyze the causes of "miracle of economic growth" in China's 40 years of reform and opening up has gone beyond the scope of the determinism of production factors of economic growth in mainstream macroeconomics. Based on the analysis of the representative views on "China's economic miracle", this paper studies the influencing factors of economic growth from multi-level, multi perspective and multi dimension. It holds that in mainstream economics, capital, labor, natural resources and technology are only the direct causes of a country' economic growth. However, the system and its changes, culture and national characteristics, government and its intentionality, which have been ignored by mainstream economics, are the internal reasons or basic support that determines the sustained economic growth and social prosperity of a country.
揭示经济增长的原因和机制一直是世界各国经济学家和政府关注和研究的热点和核心问题。分析中国改革开放40年“经济增长奇迹”的成因,已经超出了主流宏观经济学关于经济增长生产要素决定论的范畴。本文在分析“中国经济奇迹”代表性观点的基础上,从多层次、多角度、多维度研究经济增长的影响因素。它认为,在主流经济学中,资本、劳动力、自然资源和技术只是一个国家经济增长的直接原因。然而,被主流经济学所忽视的制度及其变迁、文化与民族性、政府及其意向性,才是决定一个国家经济持续增长和社会繁荣的内在原因或基本支撑。
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引用次数: 0
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Proceedings of the 1st International Symposium on Innovative Management and Economics (ISIME 2021)
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