Inter-industry Technology Spillover Effects in China： Evidence from 35 Industrial Sectors

The present paper calculates 35 industrial sectors’ similarity matrices for the period of 1997-2008 using China’s input-output tables for 1997,2002 and 2007,and uses these to measure inter-industry technology spillover to analyze the spillover effects on industrial sectors’ labor productivity.The empirical analysis shows that inter-industry technology spillover has a significant positive effect on the labor productivity of each industry.The elasticity of productivity effects of inter-industry technology spillover is not only larger than that of direct R&D input,but also increases over time.We group the industries into four major categories and find that the inter-industry technology spillover effect within the categories is,on average,greater than that between the four categories,indicating that technology spillover occurs more easily between similar industries.This research shows that the interindustry technology spillover effect in China has begun to increase,and the government should take advantage of this effect.     

Reverse imports, foreign direct investment and exchange rates

This paper investigates linkages among “reverse imports”, foreign direct investment and exchange rates. As an example, we have in mind the competition in the Japanese market of a Japanese multinational firm and a Chinese domestic firm. Products are differentiated based on Japanese consumers’ brand name recognition. The model shows that yen appreciation leads to an increase in Japanese production in China and “reverse imports” and a decrease in Japanese domestic production. Due to the barriers in brand name, the exports of the Chinese firm could fall, because the increase of reverse imports may erode the market share of the Chinese firm, even though total exports from China increase. Further, we find that yen appreciation may improve the profits of the Japanese firm and welfare in Japan under reverse imports, against conventional wisdom. The predictions of the model fit well with the actual numbers and shed light on the current debate on the Chinese currency.     

The Status Quo of Reverse Logistics in China and Countermeasures

With the market competition becoming more and more fierce, awareness in the art and science of logistics is continuing to increase, and the field of Reverse Logistics is experiencing great interest. The purpose of this paper is to describe what Reverse Logistics is, what is it benefits, the status quo of Reverse Logistics in china and its difficulties, and give some suggestions and countermeasures on how to manage Reverse Logistics successfully under China＇s current situation.     

论逆物流外包的有效运作与降低交易成本的途径

逆物流作为物流系统中一个全新的领域，引起了越来越广泛的关注。逆物流交易过程中存在资产专用性和不确定性，而合理采用外包的形式、加强供应链成员间的协作关系、有效降低固定交易成本，对降低逆物流的交易成本具有重要作用。     

我国股指期货与现货市场信息传递与波动溢出关系研究

股指期货与现货市场关系是监管者关注的重点问题。本文采用我国股指期货上市以来1分钟级高频数据,应用向量误差修正模型、方差分解、多元T-GARCH等,考察期现两市信息传递、波动溢出效应的影响。实证结果表明,尽管股指期货和股票市场之间短期内存在相互引导关系,但股票市场价格变动更多来自于自身影响,起主导作用,而且两市长期均衡收敛也是以股票市场占主导地位;两市存在显著的双向波动溢出,期货市场的波动溢出效应强于股票市场的波动溢出效应;两市场存在明显的非对称效应,期货市场对坏消息更为敏感,而现货市场对好消息更为敏感。     

再制造逆向物流网络设计的多目标优化模型

逆向物流是物流领域的新视野,它不仅强调对废旧品的回收利用,更强调实现节约资源、保护环境和增强竞争力等目标.针对再制造逆向物流网络设计问题,在考虑废旧产品回收数量不确定的情况下,基于混合整数规划方法,建立了一个多目标的再制造逆向物流网络优化设计模型.模型以最小化网络设施总建设费用和最小化所建设施对居民产生的负效用为目标,...     

A production/remanufacture model with returns’ subassemblies managed differently

This paper considers a production-remanufacturing inventory model for a single product, where constant demand is satisfied from the inventory of newly produced and remanufactured items. Although the available models in the literature imply that collected used units (or returns) are disassembled for recovery purposes, these models really do not treat them as such. Contrary, the returns are assumed to be recovered as whole units, perhaps, for simplicity. This assumption may not capture the benefits reaped from product recovery programs. This paper addresses this limitation in the literature and assumes that each unit of a used product is collected and disassembled into components, where these components are sorted into subassemblies, which are fed back into the production-remanufacturing process. The returned subassemblies are remanufactured and reassembled to represent a second source of as-good-as-new units of the end-product. For this multi-component inventory problem, the question that needs to be answered is whether, or not, extreme strategies of either pure remanufacturing or pure production are more economical than a mixed strategy (one that combines both strategies). A mathematical model is developed that accounts for the inventories of subassemblies. The results suggested that not accounting for the disassembled components of a product leads to inappropriate inventory decisions that are not environmentally sound.     

An inventory control model with consideration of remanufacturing and product life cycle

This paper investigates inventory control policies in a manufacturing/remanufacturing system during the product life cycle, which consists of four phases: introduction, growth, maturity, and decline. Both demand rate and return rate of products are random variables with normal distribution; the mean of the distribution varies according to the time in the product life cycle. Closed-form formulas of optimal production lot size, reorder point, and safety stock in each phase of the product life cycle are derived. A numerical example is presented with sensitivity analysis. The result shows that different inventory control policies should be adopted in different phases of the product life cycle. It is also found that the optimal production lot size and reorder point are not sensitive to the phase length and the demand changing rate.     

OFDI绿色技术溢出与全球价值链升级--以中国对“一带一路”沿线国家为例

随着我国与“一带一路”沿线国家交流的加深,我国对“一带一路”沿线国家的直接投资(OFDI)规模呈增长趋势,且绿色技术溢出效应显著。为进一步推动“一带一路”沿线国家经济高质量发展,贯彻人类命运共同体理念,选择2005—2018年“一带一路”沿线26个国家的面板数据,利用基于数据包络分析法的曼奎斯特指数法(DEA—Malmquist)测算我国OFDI绿色技术溢出,实证分析其对沿线国家全球价值链参与度和地位跃升的影响,并以地区、发展程度、产业为分组依据进行分样本回归,考察OFDI绿色技术溢出对全球价值链升级的异质性影响。研究结果表明,我国OFDI绿色技术溢出显著促进了“一带一路”沿线国家全球价值链参与度和地位的跃升。尽管OFDI绿色技术溢出与全球价值链参与度和地位具有非线性关联和时序异质性,但均处于非线性曲线的上升阶段;在区际经济地理禀赋约束下,OFDI绿色技术溢出的全球价值链升级效应呈现出禀赋异质性、空间异质性、状态依存性特征。首先,与“一带一路”沿线欧洲国家和发达国家相比,我国OFDI绿色技术溢出对“一带一路”沿线亚洲国家和发展中国家的全球价值链升级效应更显著;其次,与农业和工业相比,服务业的全球价值链升级效应更显著。为实现“一带一路”沿线国家全球价值链向高端环节跃升,既要通过扩大规模、提高质量、多元发展的方式增强我国对“一带一路”沿线国家的OFDI绿色技术溢出效应,又要切实提高区际经济外向度与契约质量,加强营商环境建设,充分利用东道国禀赋优势,强化OFDI绿色技术溢出的全球价值链升级效应。     

Trade, investment and growth: nexus, analysis and prognosis

Patterns of causation between income, export, import and investment growth for 39 developing countries are examined using model selection techniques which are based on ex ante predictive ability criteria to identify the best predictive model for each country. In particular, we look at the incidence of causation and reverse causation between various economic variables which are commonly believed to lead economic growth and find that there is less reverse causation from income to these variables than previously thought. We also construct an index of global business cycle conditions and find that models of countries with high trade exposure, growth rates and investment rates tend to gain in predictive ability from the addition of this variable.