价值网络视角下浙江全球数字贸易中心提升路径研究——基于PLS-SEM实证分析

当前数字经济快速发展,数字贸易依托数字经济在全球经济格局中的角色日益显著。浙江作为数字贸易发展的重点区域,提高浙江全球数字贸易中心地位和价值对区域乃至全国的数字贸易发展都起着带动作用。本文基于价值网络理论探讨如何提高浙江全球数字贸易中心的地位和价值,研究使用偏最小二乘法结构方程模型(PLS-SEM)和重要性绩效地图分析(IPMA),对问卷获得的31份有效样本进行分析。研究结果显示,资源依赖和网络效应都对浙江全球数字贸易中心的地位和价值有显著的正向影响,并根据研究结果提出相应的路径提升策略,不仅有助于理解数字贸易中心的影响因素,还为浙江和其他地区提高全球数字贸易中心的地位提供有益的启示。

发达国家与发展中国家的贸易不平等关系--基于马克思消费力理论的分析

第二次世界大战结束以来,发达国家极力鼓吹并蛊惑发展中国家追随其发展模式,从而绑架发展中国家为其服务。发达国家通过国际分工限定发展中国家消费力、通过文化倾销控制发展中国家消费力、通过通胀输入稀释发展中国家居民消费力、通过货币战争掠夺发展中国家消费力,导致发展中国家不仅不能实现预期发展,反而因自然资源消耗、产业结构固化、社会阶层分化等削弱或丧失发展权。在控制与反控制的竞争中,唯有提升自生能力才是发展中国家破解当前发展困境的正确选择。

全渠道零售与门店吸引力--数字化时代商圈理论的实证研究

随着数字技术的普及和推广,全渠道零售正在重塑门店与顾客的空间互动关系。基于零售商圈理论,从零售商、顾客双重视角出发,实证探究全渠道零售对门店吸引力及其空间分布规律的影响。研究发现:零售商开展全渠道零售后,门店吸引力随着空间距离衰减的规律仍然成立,但衰减形态发生了明显改变,不再严格遵循传统引力模型显示的“长尾衰减”,表现为“线性衰减”,且衰减速度明显放缓;全渠道零售显著扩大了门店的核心商圈范围,即全渠道的吸引力相比实体渠道的空间辐射范围更广;随着到店距离的增加,门店的顾客更倾向于成为“全渠道顾客”,且同等条件下全渠道顾客相比实体渠道顾客的光顾行为受空间距离约束效应更弱。

Powell dynamic identification of displacement parameters of indeterminate thin-walled curve box based on FCSE theory

The FCSE controlling equation of pinned thinwalled curve box was derived and the indeterminate problem of continuous thin-walled curve box with diaphragm was solved based on flexibility theory. With Bayesian statistical theory,dynamic Bayesian error function of displacement parameters of indeterminate curve box was founded. The corresponding formulas of dynamic Bayesian expectation and variance were deduced. Combined with one-dimensional Fibonacci automatic search scheme of optimal step size,the Powell optimization theory was utilized to research the stochastic identification of displacement parameters of indeterminate thin-walled curve box. Then the identification steps were presented in detail and the corresponding calculation procedure was compiled. Through some classic examples,it is obtained that stochastic performances of systematic parameters and systematic responses are simultaneously deliberated in dynamic Bayesian error function. The one-dimensional optimization problem of the optimal step size is solved by adopting Fibonacci search method. And the Powell identification of displacement parameters of indeterminate thin-walled curve box has satisfied numerical stability and convergence,which demonstrates that the presented method and the compiled procedure are correct and reliable.During parameters鈥？iterative processes,the Powell theory is irrelevant with the calculation of finite curve strip element（FCSE） partial differentiation,which proves high computation effciency of the studied method.

The Legacy of Conventional Textbook Trade Theory in the Light of Globalization

The term “globalization” designates the rapidly advancing international economic integration through substantial growth in trade of goods and services as well as surging cross-border factor mobility from the early 1990s onwards. This acceleration in the liberalization of world trade and capital movements is largely attributable to technological progress which significantly curtailed the expenses for transport as well as communication. In conjunction with the progressing opening of major newly industrializing economies endowed with abundant and cheap labor forces, it has reinforced a geographical fragmentation of production processes according to cost considerations. This phenomenon termed as “vertical specialization”, “outsourcing” or also “slicing the value chain” in turn has translated into a hike in FDI and international trade of intermediate products. The main objective of this paper is to identify adequate trade models for assessing the corresponding effects of those developments. In this context, textbook trade theories spanning from comparative advantage à la Ricardo to the new-new trade theory are examined. Subsequently, we expand on globalization-induced new forms of trade （intra-firm trade, trade within the value chain） and finally conclude with our findings to properly account for those trends.

Interaction of Photoactive[Fe(CN)_6]^(4-) with TiO_2 Anatase(101) Surface:A Periodic Density Functional Theory Study

The plane-wave pseudopotential function method, based on density-functional theory, has been used to calculate the adsorption, electronic band structures, orbitals and optical absorption spectrum of [Fe（CN）6]^4- on TiOz anatase（101） surface. Our calculations reveal that the surface-modified anatase system has large adsorption energy and a much narrower band gap. [Fe（CN）6]^4- adsorption on the （101） surface could lead to a large red shift of the anatase optical absorption threshold, which extends into a visible region significantly. The calculated results are in agreement with the experiment and other theoretical studies reasonably. It is very important for the understanding and further development ofphotovoltaic materials that are active under visible light.

Research on carbon emissions in China's export trade based on input-output model

Becoming the world's largest emitter of carbon makes China the object of criticism;however,people may ignore the fact that when China exports low-carbon products,the carbon emissions have been left in the meanwhile,forming the so-called"embodied carbon".Using the input-output model,this paper analyzes the carbon emission intensity and amount of embodied carbon of various sectors in China's export trade in 2002 and 2007,and filters out high carbon emission sectors.In addition,this paper also points out the problem of carbon emissions'international transfer from developed countries to China through the analysis of national and regional flow of export carbon emissions and changing of the proportion of emissions for exports relative to total emissions,and explains the reason that caused carbon transfer to China by using the treadmill of production theory.Based on that,this paper proposes some measures for carbon reduction in China from the foreign trade perspective.

发电联盟参与电-碳-绿证市场的协同优化策略

为有效提高各发电主体的收益并促进发电侧碳减排,提出基于合作博弈的可再生能源-化石能源机组发电联盟参与电-碳-绿证交易的双层优化模型。首先,分析可再生能源发电机组和化石能源发电机组参与电-碳-绿证市场的方式,基于信息间隙决策理论IGDT(information gap decision theory)构建考虑现货价格不确定性的发电联盟鲁棒优化模型,作为双层优化的上层模型。接着,在下层建立电力现货市场出清模型、阶梯式碳交易模型和基于古诺模型的绿证市场交易模型,基于KKT条件将下层模型转化为约束条件并纳入上层模型。然后,构建基于Shapley值法和改进核仁法的发电联盟收益分配模型。最后,以IEEE 14节点系统为例进行算例分析,验证了所提模型的有效性。

Cosmological parameters for spatially flat dust filled Universe in Brans-Dicke theory

We have investigated late time acceleration for a spatially fiat dust filled Universe in Brans- Dicke theory in the presence of a positive cosmological constant A. Expressions for Hubble＇s constant, luminosity distance and apparent magnitude have been obtained for our model. The theoretical results are compared with observed values of the latest 287 high redshift （0.3 ≤ z ≤1.4） Type Ia supernova data taken from the Union 2.1 compilation to estimate present values of matter and dark energy parame- ters, （Ωm）0 and （ΩA）0. We have also estimated the present value of Hubble＇s constant H0 in light of an updated sample of Hubble parameter measurements including 19 independent data points. The results are found to be in good agreement with recent astrophysical observations. We also calculated various physical parameters such as matter and dark energy densities, present age of the Universe and decelera- tion parameter. The value for Brans-Dicke-coupling constant ω is set to be 40 000 based on accuracy of solar system tests and recent experimental evidence.

Comparative Studies of 1,4-Bis[2-(4-Pyridyl)ethenyl]-benzene Using Density Functional Theory

The optimized molecular structure and harmonic vibrational frequencies of a 1,4-bis [ 2-（4-pyridyl）ethenyl]- benzene（BPENB） molecule were calculated via five popular density functional theory（DFI＇） methods. On the basis of the comparison between calculated and experimental results, it is concluded that the B3PW91 and B3LYP methods are superior to the others in optimizing structures, and the BPW91 method reproduces the observed fundamental fre-quencies most satisfactorily.

Dual worth trade-off method and its application for solving multiple criteria decision making problems

To overcome the limitations of the traditional surrogate worth trade-off （SWT） method and solve the multiple criteria decision making problem more efficiently and interactively, a new method labeled dual worth tradeoff （DWT） method is proposed. The DWT method dynamically uses the duality theory related to the multiple criteria decision making problem and analytic hierarchy process technique to obtain the decision maker＇s solution preference information and finally find the satisfactory compromise solution of the decision maker. Through the interactive process between the analyst and the decision maker, trade-off information is solicited and treated properly, the representative subset of efficient solutions and the satisfactory solution to the problem are found. The implementation procedure for the DWT method is presented. The effectiveness and applicability of the DWT method are shown by a practical case study in the field of production scheduling.

Optimal social welfare:A many-to-many data transaction mechanism based on double auctions

With the development of Big Data and the Internet of Things(IoT),the data value is more significant in both academia and industry.Trading can achieve maximal data value and prepare data for smart city services.Due to data's unique characteristics,such as dispersion,heterogeneity and distributed storage,an unbiased platform is necessary for the data trading market with rational trading entities.Meanwhile,there are multiple buyers and sellers in a practical data trading market,and this makes it challenging to maximize social welfare.To solve these problems,this paper proposes a Social-Welfare-Oriented Many-to-Many Trading Mechanism(SOMTM),which integrates three entities,a trading process and an algorithm named Many-to-Many Trading Algorithm(MMTA).Based on the market scale,market dominated-side and market fixed-side,simulations verify the convergency,economic properties and efficiency of SOMTM.

Escaping Dependency and Trade War:China and the US

Marxist political economy provides a perspective for grasping the root cause of the China-US trade war.The international relations of production,which stem from the international division of labor,shape the distribution of international economic interests and the political status of countries.Traditionally,developing countries have been subjected to the“periphery”in the international division of labor.In the new global value chain,developing countries have remained in a subordinate position characterized by“technological-market”dependence.To achieve the goal of building a strong modern nation,China must escape the“technological-market”dependence.Yet China’s efforts and achievements in escaping dependent development are deemed as a threat to US vested interests in the international markets.To preserve the economic foundation of its hegemony,the US has resorted to a trade war to contain China’s development.

State of Country Report——Foreign Trade 2009-2010

Facing economic crisis in the world 2009, international market demands suffered a serious recession, also China's foreign trade has encountered unprecedented difficulties. In front of this, Chinese Government takes series of adjustment timely to get over this rough time. So how is China's foreign trade in 2009, and where it will go in 2010, let's have a look at this…

基于扎根理论的跨境电商品牌形象塑造研究

为指导跨境电商企业更好地在海外市场塑造品牌形象,提升品牌的国际竞争力,文章基于扎根理论,以跨境电商代表性品牌SHEIN为例,对其在社交平台Instagram上发布的956张宣传图片进行内容分析。借助NVivo 11.0软件,完成201个节点编码,并以此生成34个初始范畴、11个主范畴和5个核心范畴。研究发现,基于社交媒体渠道的跨境电商品牌形象塑造,围绕产品特性、消费者形象、品牌价值表达、营销活动、服务互动五个维度展开,其中产品特性与消费者形象传播最为主要,而采用符号化语言的内容输出进一步丰富了品牌跨文化背景下的个性表达。

贸易信用中账期对供应链上下游及供应链绩效的影响研究

贸易信用是供应链中上游企业允许下游企业延期支付的供应链内部融资方式。有观点认为供应链下游企业会通过延长账期挤占上游企业的利益,特别是一些处于优势地位的下游,他们不仅延长账期,同时还向上游提供供应链金融服务。针对这一观点,本文构建了含有一个供应商和一个零售商的供应链模型,对比分析了三种供应商资金模式下(自有资金充足、自有资金不足通过银行融资和自有资金不足通过零售商融资)账期对供应链上下游和供应链绩效的具体影响。研究发现:(1)对于供应商和供应链绩效,账期并非越短越好,对于零售商,账期并非越长越好;(2)当供应商资金不足时,相比银行融资,零售商融资会导致账期延长,但这有利于供应链各成员的利润;(3)账期和零售商融资并存有可能让供应链各成员获得更多利润,甚至会比供应商资金充足情况更优。本文的研究有助于厘清贸易信用中账期对供应链成员的收益以及供应链整体绩效的影响,从而有利于供应链金融业务的健康开展。

基于扎根理论的政府开放数据价值影响因素研究

[目的/意义]政府开放数据价值是数字经济情境下个体数据行为嬗变的反馈性标志。从政府开放数据使用者视角识别其价值要素,对于促进政府数据管理水平,提升数据交易常态化具有理论和实践意义。[方法/过程]利用会议、访谈与网络数据获取原始资料,结合扎根理论,构建“三维—多层”的数据价值影响因素模型,涵盖121个初始概念、30项范畴和9项主范畴,各领域受访者共33位。[结果/结论]个体感知数据价值影响因素主要涉及需求、进路、市场化三个维度,综合考察各项主范畴,针对数据价值的内在关联以及外部机制,可以提炼出直接、间接、跨层、双元4种关系结构。这个过程在理论上弥补了传统政务体系下政府开放数据与个体需求二元割裂之不足,延展了政府开放数据的价值使用行为与价值释放路径。

基于区块链的水权交易机制重构研究

为完善区块链技术下水权交易平台建设,建立统一用水权交易市场,激发水权交易活跃度,结合区块链技术对水权交易机制进行重构研究。将区块链技术与水权交易目前需求进行契合分析,结合微服务技术搭建了水权交易技术框架,初步设计了基于区块链的水权交易流程与奖惩机制,并利用python语言对信用奖惩机制进行仿真。结果表明,区块链技术特征与水权交易需求高度契合,奖惩机制能够保证在不同交易情景下对参与节点进行有效奖励,并对违约节点进行信用和资金处罚,从而激励交易主体积极履行合约,提高整体交易意愿。区块链技术应用在水权全交易流程能够实现水权交易信息的完整性存储、分布式共享和追踪溯源,研究成果可以为优化水权交易机制、提高水权交易活跃度提供参考。

建立在波特菱形理论上的中国电炉企业对外贸易竞争优势分析

当涉及国家的贸易发展水平时,贸易竞争优势被认为在一定程度上起着决定性的作用。然而,目前关于国家贸易竞争优势的分析研究存在着不完善的问题。为此,本研究利用波特菱形理论对中国电炉企业对外贸易竞争优势展开深入分析。在探讨波特菱形理论的基础上,从生产要素、需求条件、相关产业配套和企业发展战略等方面研究中国电炉企业对外贸易竞争力。再对波特菱形理论和竞争力分析结果进行充分利用,从贸易机会、产业结构等方面进行详细分析,以判断中国电炉企业对外贸易活动所具有的竞争优势。通过综合考量,以深入了解中国电炉企业在全球贸易竞争中的地位和潜力,实现全面评估中国电炉企业在国际市场中的竞争优势的目标,以为其未来的发展提供战略指导。