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排序方式: 共有1612条查询结果,搜索用时 15 毫秒
1.
农村新业态发展现状、问题与对策研究   总被引:1,自引:0,他引:1  
近年来,农村新业态快速发展,成为农村经济发展的新动能。文章在介绍农村新业态发展现状的基础上,剖析了当前存在的顶层设计不清晰、要素制约突出、水平有待提升以及规范化不足等系列问题;结合乡村振兴战略全面实施带来的新机遇,提出要强化顶层设计、优化发展环境、加快转型提质、加大监管力度等政策建议,加快促进农村新业态健康有序发展。  相似文献   
2.
李培哲 《技术经济》2020,39(6):34-43,53
战略性新兴产业是近几年新出现的研究热点,对其科研合作网络的研究,有助于探究该领域的科研合作现状与发展趋势。基于社会网络分析方法,以中国知网(CNKI)作为数据来源,构建了战略性新兴产业领域作者合作网络、关键词共现网络、作者-关键词耦合网络及机构合作网络,对合作网络的结构及特性等进行了分析。结果表明:战略性新兴产业领域论文合著率基本呈上升趋势,但该领域整体合作仍较为松散,存在较多的小团体;合作网络具有小世界和无标度特性,具有较大影响力的节点作为合作网络的中心,影响着网络内的学术交流和科研工作的开展。  相似文献   
3.
The Chinese high-tech industry has developed greatly since the beginning of China's “National High-tech R&D (863) Program” and “China Torch Program”. This paper introduces a conceptual model extended from the innovation value chain model to simultaneously estimate the R&D and commercialization efficiencies for the high-tech industries of 29 provincial-level regions in China. To match reality, a network DEA incorporating both shared inputs and additional intermediate inputs is constructed to open the “black box” view of decision making units used in single-stage DEA. This study is the first attempt to link the R&D and commercialization with a solid theoretical foundation and feasible mathematical methods. The empirical findings show that most of the 29 regions have low efficiency in the commercialization sub-process compared to the R&D sub-process, although there are regional differences in China's high-tech industry. Pearson correlation shows that the R&D sub-process is not closely correlated to the commercialization sub-process in terms of efficiency. Our analysis can provide information for the formulation of policies to achieve high innovation efficiency.  相似文献   
4.
We use a modified version of the stochastic frontier model to estimate oligopoly markups above the perfectly competitive frontier, separating out deterministic markups from purely stochastic markups. Using data from 42 US food processing industries between 1990 and 2010, empirical results indicate a widespread incidence of oligopoly power, with Lerner indexes averaging approximately 21%. Further, the estimated markups increase with industrial concentration but decrease with price elasticities and imports. Finally, the estimated Lerner indexes are in the range of previous food industry estimates using New Empirical Industrial Organization (NEIO) models.  相似文献   
5.
李政  杨思莹 《南方经济》2019,38(12):49-67
文章基于2003年至2016年我国215个城市面板数据,运用双重差分模型、空间双重差分模型和分位数回归模型等方法,实证检验了国家高新区对城市创新水平的影响及其空间异质性特征。研究结果表明,国家高新区建设显著提升了城市创新水平,并且高新区设立带动的城市投资集聚是推动城市创新水平提升的重要原因。空间双重差分结果表明,国家高新区对城市创新水平的提升作用并非源于其对周边城市创新资源的掠夺,相反高新区设立对周边城市和省内城市均产生了显著的溢出效应,提升了本省城市和周边外省城市创新水平。此外,国家高新区对城市创新水平的影响具有空间异质性特征,在省会城市、直辖市和副省级城市,高新区对城市创新水平的影响并不显著,而能够显著提升一般地级市创新水平;随着城市创新水平的提升,高新区建设对城市创新水平的促进作用呈现出先增强、后减弱直至不再显著的非对称"倒V型"变化特征。但是研究也发现,国家高新区对城市创新水平影响的区位异质性并不显著,高新区对东部地区和中西部地区城市创新水平提升均具有显著的促进作用。  相似文献   
6.
This article argues that copyright is a systemic marketplace icon because of the breadth of its effects on market operations. Copyright determines how intellectual property rights for creative work are allocated between the different actors involved in production and consumption, and must balance the civic priority of public access to creative work with the market-driven principle of rewarding private interests for their effort. This duality tends to polarise opinion about its implementation by rights holders, because very different ideological assumptions underpin civic and market objectives. Copyright discourses reveal how these ideological struggles play out among interested parties, who use the concept of copyright to make arguments about how markets should be structured, how creative work should be exchanged, and how consumers should behave. In the process, copyright is constructed, explained, branded and promoted as an object to which market actors must orient themselves if they wish to conduct themselves appropriately, and as a rationale for material changes to market structures. At the same time, copyright discourses reveal the implications of copyright, which invoke both the market and democracy, for the quality of democracy, the circulation of creativity, and the availability of public knowledge, and help explain why ideological struggles over copyright are so difficult to resolve.  相似文献   
7.
This article explores the relationship between the quality of corporate social responsibility (CSR) disclosure and the cost of equity capital by analyzing the financial data and CSR reports of A-share listed firms in China from 2008 to 2014. The quality of the CSR disclosure is shown to be negatively related to the cost of equity capital of the listed firms. This negative correlation proves to be more prominent among firms of environmentally sensitive industries. Taking the ownership of the listed firms into consideration, it is further confirmed that the negative relationship between the CSR disclosure and the cost of equity capital is of higher significance for state-owned enterprises. Our findings also empirically demonstrate that the quality of CSR disclosure is more negatively related to the cost of equity capital among the large listed firms than the smaller ones.  相似文献   
8.
ABSTRACT

How do employees in “new services”, such as coffee baristas and gym trainers in India, see their jobs? In this paper, we build on extensive fieldwork in gyms and coffee chains that cater to the emerging Indian middle classes. Our research highlights the importance of respect and recognition in making service interactions more meaningful for new service workers. Generally hailing from the lower middle classes, new service work offers important opportunities to interact with and learn from English-speaking upper middle-class customers and clients. Besides the opportunity to interact and learn, the acknowledgement they receive for their skills and (bodily) accomplishments make such professions attractive as well. Even if this holds the potential for upward socioeconomic mobility, our findings also point at the resilience of social hierarchies. Drawing on literature on service interactions and new middle-class formation in India, this paper provides important insight into how young Indians navigate and negotiate the opportunities and pitfalls that come with the country's changing socioeconomic landscape.  相似文献   
9.
信息技术产业创新发展的研究具有现实意义。通过文献研究建立信息技术产业创新演化复杂系统研究框架,汇总认知角度的创新层次、产业演化以及演化研究工具和方法等相关研究情况,认为应重视动态、演化和复杂系统的特点,政府介入推动自组织网络的高效率演化和发展,促进网络化学习,避免低端依赖,促进创新效率。创新系统研究应包含认知领域的相关成果,利用演化计算和机器学习方法构建模型,提升对真实行为的模拟仿真和解释能力。  相似文献   
10.
This study set out to evaluate the financing efficiency of low‐carbon companies. Applying a three‐stage data envelopment analysis with the data from 85 listed companies in China's low‐carbon industries over the period 2011 to 2017, this study has found that the overall financing efficiency of low‐carbon companies was relatively high, and the pure technical efficiency was quite steady over the period. The overall financing efficiency of these low‐carbon companies on average tended to change with the scale efficiency. This study has also shown that the scale efficiency was the main constraint influencing the financing efficiency of low‐carbon companies in China over the period. Our results are robust and have significant implications for policy makers and corporate managers.  相似文献   
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