中国进出口贸易发展困境及对策研究 ——基于民营企业发展现状

中国进出口贸易可以说一直是在曲折中发展前行。2018年,美国宣布对从中国进口的部分商品加增关税,中国进出口贸易惨遭打击;2020年,随着新冠病毒全球性的暴发,各国采取紧急措施,中国进出口贸易再次面临极大的挑战。基于此,以中国进出口贸易现状为出发点,着重分析了民营企业在中国进出口贸易发展中出现的问题,剖析了中国进出口贸易发展困境,并提出了相应的对策、建议以解决问题,助力中国进出口贸易发展。     

人民币汇率及其波动对中国主要贸易伙伴进出口影响研究

本文利用AR-GARCH模型,协整检验和误差修正模型,对海关总暑提供的2001年1月互2010年6月中国对东盟、日本、美国、欧盟、韩国、中国香港六个主要贸易伙伴的月度进出口数据进行实证研究.从人民币实际汇率变化,汇率波动率对我国和各贸易伙伴进出口贸易的长期和短期影响进行分析,比较了汇率因素对各个贸易伙伴影响.研究结果表明,长期看来人民币实际有效汇率和多数贸易伙伴的出口显著负相关,没有与其正相关的贸易数据;其波动率可能有多种长期效果.短期看人民币实际有效汇率对与欧盟,东盟,香港出口有反向冲击作用,对韩国进口有正向冲击作用,其波动率对部分贸易伙伴的进出口贸易存在正向冲击.     

中国工业行业进出口贸易对环境污染的影响分析

20世纪90年代以来,贸易与环境问题越来越受到学者的关注。中国长期以来粗放型贸易增长模式凸显了环境问题,特别是工业行业进出口贸易的环境问题。本文运用投入产出法量化分析中国工业行业的进出口污染排放,衡量中国在对外贸易中为他国承担的环境成本,提出兼顾平衡贸易收益和环境成本的贸易发展建议。     

中国贸易用汇政策的变化及其影响分析

立足于进出口贸易,分析了不同历史阶段的用汇政策及其给中国进出口贸易带来的影响。希望 通过对历史的反思,对冷静且正确地分析当前人民币所面临的升值压力有所帮助。     

中国贸易用汇政策的变化及其影响分析

立足于进出口贸易,分析了不同历史阶段的用汇政策及其给中国进出口贸易带来的影响.希望通过对历史的反思,对冷静且正确地分析当前人民币所面临的升值压力有所帮助.     

1987-2016年中国粮食贸易时空格局演变及贸易结构安全性评估

粮食进出口贸易结构影响国家粮食安全.在开放的全球粮食贸易系统中,贸易格局与贸易安全水平息息相关,因此,准确评判中国粮食贸易结构的安全程度成为亟待解决的重要问题.本文采用净贸易量计算法、香农熵指数法对中国1987-2016年主要粮食(玉米、小麦、稻米、大豆)的进出口贸易时空格局和贸易结构安全性进行了分析.研究发现:①20...     

欧盟贸易便利化对中国进出口贸易影响的实证研究

基于2011—2016年欧盟28个国家的贸易面板数据,构建一套贸易便利化评估体系,测出欧盟国家的贸易便利化水平,采用拓展贸易引力模型,分析欧盟贸易便利化水平对中国进出口贸易的影响,并进一步分析贸易便利化各项指标的影响,明确未来贸易便利化改革方向。研究结果表明:贸易便利化水平对中国进出口贸易有正向作用且最显著,影响力大于伙伴国GDP、人口总数和两国距离等其他因素;电子商务环境在4项贸易便利化措施中影响最显著。     

越南对华商品贸易问题研究

本文通过对2015年越南与中国进出口商品贸易整体情况和贸易结构分析,发现两国之间的商品贸易存在两国间贸易不平衡、商品种类单一、结构不合理和产品竞争性显著等问题。提出了越南政府通过抓住中国"一带一路"战略机会、调整产品结构和加强基础设施建设等建议。     

浅谈中俄能源进出口贸易的发展与合作

能源在我国国民经济中的战略地位不容忽视,俄罗斯作为与中国毗邻的能源大国,是全球重要的能源出口国,与我国在能源贸易方面形成较强的互补性。变化莫测的国际政治局势导致我国与俄罗斯两国之间在能源技术方面的合作受到巨大的影响与冲击。在“新时代全面战略协作伙伴关系”的中俄关系新时代背景下,中俄能源进出口贸易迎来更大发展的新机遇。文章梳理中俄两国在能源进出口贸易方面发展的转型合作现状的基础上,分析了两国能源进出口贸易面临的难题,进一步针对未来两国能源进出口贸易的发展与合作提出建议。     

人民币升值对我国进出口贸易的影响

分析了人民币升值的原因及对我国进出口贸易的有利和不利影响,提出了更好地发展我国进出口贸易的对策.     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

Low doses of a red wine ingredient figh diabetes in mice

Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Molecular motor assembly of a biomimetic system

Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence