首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   4172篇
  免费   111篇
  国内免费   20篇
财政金融   710篇
工业经济   39篇
计划管理   858篇
经济学   1284篇
综合类   322篇
运输经济   68篇
旅游经济   46篇
贸易经济   383篇
农业经济   142篇
经济概况   451篇
  2024年   1篇
  2023年   36篇
  2022年   106篇
  2021年   153篇
  2020年   173篇
  2019年   156篇
  2018年   121篇
  2017年   128篇
  2016年   176篇
  2015年   120篇
  2014年   214篇
  2013年   274篇
  2012年   347篇
  2011年   458篇
  2010年   249篇
  2009年   286篇
  2008年   303篇
  2007年   276篇
  2006年   259篇
  2005年   161篇
  2004年   74篇
  2003年   57篇
  2002年   39篇
  2001年   33篇
  2000年   22篇
  1999年   9篇
  1998年   8篇
  1997年   9篇
  1996年   6篇
  1995年   2篇
  1994年   5篇
  1993年   4篇
  1992年   3篇
  1991年   4篇
  1990年   5篇
  1989年   2篇
  1988年   4篇
  1987年   1篇
  1986年   2篇
  1985年   4篇
  1984年   12篇
  1981年   1篇
排序方式: 共有4303条查询结果,搜索用时 234 毫秒
101.
从中观视角研究要素价格扭曲对制造业R&D投入的影响及行业差异,厘清行业异质性背景下要素价格扭曲影响R&D投入的理论机制,运用制造业细分行业数据,结合非线性面板门槛模型进行深入分析。结果显示:要素价格扭曲对制造业R&D资本投入和R&D人力投入均均具有显著抑制效应,行业异质性因素在二者间发挥重要调节作用。进一步,运用面板门槛模型对行业异质性因素的作用进行探究。结果表明,行业特征因素如市场竞争、资本密集度、企业平均规模以及对外开放度在不同门槛值区间,要素价格扭曲对R&D投入的影响效应均存在显著差异。研究结论为全面深化市场化改革、提高要素资源配置效率、促进制造业自主创新转型升级,进而推动创新型国家建设具有一定启示意义。  相似文献   
102.
国内龙头企业核心技术自主可控成为制约NVC(国内价值链)功能升级的关键问题。通过文献归纳,以能力自主与产权自主解构技术自主性内涵,并根据产品平台与技术轨道双维度划分NVC龙企功能升级模式。基于“能力—战略—行为—绩效(RSCP)”分析框架,选取华为海思公司作为纵向案例研究对象,探索技术自主性视角下NVC龙企功能升级模式及演进机理。结果发现,模块创新与知识产权创造能力通过产品渐进升级模式提升供应链;架构创新与知识产权布局能力可以调整技术轨道,通过产品突破升级模式I打通创新链;架构创新、模块创新和知识产权运营能力可以变革技术轨道,通过产品突破升级模式II主导价值链。  相似文献   
103.
针对互联网创业服务特点,基于计划行为理论信息系统成功模型构建新的理论模型,使用结构方程模型进行数据分析,以解释互联网创业服务平台用户持续使用意愿。通过模型分析发现,兼容性和线上线下互动通过知觉行为控制正向显著影响用户满意度和用户使用意愿,信息品质直接影响用户对互联网创业服务平台的使用意愿,而用户满意度在平台信息品质、系统品质、服务品质与使用意愿之间具有中介效应。基于此,提出完善互联网创业服务平台和提升用户使用意愿的对策建议。  相似文献   
104.
I examine 468 estimates on the relationship between trading volume and stock returns reported in 44 studies. I study publication bias together with Bayesian and frequentist model averaging to explain the heterogeneity in the estimates. The results yield three key conclusions. First, publication bias distorts the findings of the primary studies. Second, the predictability of stock returns varies with different markets and stock types. Third, different data characteristics, structural variations and methodologies used drive the heterogeneity in the results of the primary articles. In particular, one should be cautious when using monthly data or VAR models.  相似文献   
105.
In recent years, as part of the broader policies of economic liberalization, the sale of agricultural land to foreign citizens has attracted considerable political, social and media attention in transition societies. The regime of land ownership in Georgia has evolved from the complete restriction of foreign acquisition in the beginning of the 1990s, to the unrestricted sale of land to foreign citizens from 2010 onwards. An analysis of newly-available data from International Social Survey Programme’s (ISSP) National Identity module suggests that respondents in Georgia, along with Russia, hold the most negative attitudes toward selling land to foreigners compared to other countries. I hypothesize that this is the result of a confluence of factors such as the communist legacy, historical memory, rural nationalism, agricultural underdevelopment and inequality. The quantitative part of this article tests socio-demographic, geographic, ideological, and identity-based explanations of within-country variation in attitudes toward the purchase of land by foreigners. The results suggest that socio-demographic and geographic variables such as respondents’ age and regional belonging explain some variance in the dependent variable, but that the major effects stem from individuals’ perceptions of economic protectionism, xenophobia, and ethnic national identity.  相似文献   
106.
107.
Public–private partnerships are increasingly seen as an important tool to build agri-food supply chains and develop markets for agri-food products in emerging economies. However, many of these initiatives fail when the public component of the program ends. One exception is the USDA Market Assistance Program (MAP) that facilitated the redevelopment of the Armenian dairy sector after privatization. This paper presents a case study of this initiative and hypothesize that the USDA MAP facilitated farmer investment in private enforcement capital. This investment resulted in sustainable market relationships between farmers and dairy processors even after the USDA MAP expired. We find empirical evidence to support this hypothesis using a panel dataset collected from 172 Armenian dairy farmers in 2004 and 2009.  相似文献   
108.
According to traditional wisdom, latecomer countries improve their technological capabilities in reverse of the product cycle, that is from mature towards new technologies. However, improvement of standards capabilities in this process has not been revealed clearly. This paper confirms similar patterns for improving formal standards capabilities as for the technological capabilities, but records some possible differences in the rate of catch-up when latecomers approach the technology frontier; a forward moving position where technology leaders (typically advanced countries) develop or conceptualize new technologies before being turned into products or systems. A number of case studies of South Korean ICT systems reveal that transition to the technological frontier is increasingly related to how they target and carry out formal standardization. The common elements driving differences in rates of successful catch-up for ICT systems standards are not only limited to generic standards capabilities, but also rely on characteristics of technology trajectories, national strategic focus, and organizing for standardization.3 This implies that a nation should not be discouraged by slow progress in standards-setting during earlier stages. Once a minimum level of capabilities is achieved, a nation pro-active in standards from the beginning may attain higher rates of catch-up near the technology frontier.  相似文献   
109.
随着经济全球化的不断发展,电影产业对一国经济的发展起着越来越重要的作用。同属于发展中国家的中国和印度,电影产业的发展却存在较大差异。基于"钻石模型"理论,从需求、资源、相关支持产业以及企业战略、结构和政府五个方面剖析了中印电影出口存在的差异及成因,提出了改革电影体制,落实政策法规;缩小文化差异,打破文化隔阂;完善资源整合,改革营销策略;刺激国内需求,形成规模效应等对策建议。  相似文献   
110.
In this paper, we examine the stock market integration process amongst 17 Economic and Monetary Union (EMU) countries from January 2002 to June 2013 over a normal period as well as for the Global Financial Crisis (GFC) and Eurozone Debt Crisis (EDC) periods. We classify the economies in three groups (A, B and C) based on their GDP to examine whether the economic size influences financial integration. Seven indicators are used for the purpose, namely, beta convergence, sigma convergence, variance ratio, asymmetric DCC, dynamic cointegration, market synchronisation measure and common components approach. The results suggest that large-sized EMU economies (termed as Group A) exhibit strong stock market integration. Moderate integration is observed for middle-sized EMU economies with old membership (termed as Group B). Small-sized economies (termed as Group C) economies seemed to be least integrated within the EMU stock market system. The findings further suggest presence of contagion effects as one moves from normal to crisis periods, which are specifically stronger for more integrated economies of Group A. We recommend institutional, regulatory and other policy reforms for Group B and especially Group C to achieve higher level of integration.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号