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   738篇
  免费   17篇
  国内免费   13篇
财政金融   41篇
工业经济   50篇
计划管理   136篇
经济学   105篇
综合类   56篇
运输经济   15篇
旅游经济   43篇
贸易经济   224篇
农业经济   34篇
经济概况   64篇
  2023年   13篇
  2021年   18篇
  2020年   38篇
  2019年   33篇
  2018年   26篇
  2017年   19篇
  2016年   24篇
  2015年   8篇
  2014年   35篇
  2013年   78篇
  2012年   35篇
  2011年   54篇
  2010年   47篇
  2009年   60篇
  2008年   55篇
  2007年   36篇
  2006年   57篇
  2005年   28篇
  2004年   38篇
  2003年   22篇
  2002年   14篇
  2001年   5篇
  2000年   4篇
  1999年   5篇
  1998年   3篇
  1997年   3篇
  1996年   1篇
  1995年   3篇
  1994年   1篇
  1993年   2篇
  1992年   2篇
  1984年   1篇
排序方式: 共有768条查询结果,搜索用时 15 毫秒
51.
本文基于扩展的贸易引力模型,使用2000~2015 年中国同22 个贸易伙伴国的面板数据,并引入和技术性贸易壁垒以及高技术产品密切相关的知识产权保护这一变量,实证考察进口国TBT 对中国高技术产品出口的影响。结果表明:(1)进口国实施 TBT 或进行知识产权保护均会抑制中国高技术产品的出口,但抑制作用并不显著;(2)若进口国将TBT 和知识产权保护相结合形成更为隐蔽的技术性贸易壁垒,将会显著抑制中国高技术产品的出口;(3)中国高技术产品出口呈现行业差异,其中医药制造业受到的抑制效应最大;(4)由于技术模仿和产品同质化现象的存在,中国高技术产品出口会在中高收入国家遭遇更为严重的TBT,对出口的抑制效应会更大。中国应将知识产权保护政策作为应对进口国TBT的一种补充,在保证高技术产品贸易健康发展的同时推动出口产业向中高端发展。  相似文献   
52.
The fast growth of the Chinese economy has transformed Chinese outbound tourism into one of the major players in the tourism industry worldwide. However, Chinese outbound tourists may still encounter travel constraints in some countries, such as Japan, which has had a close and complicated relationship in history with China. This study adopted the qualitative approach by applying focus group and in-depth interviews to investigate and triangulate the travel barriers affecting Chinese outbound travel to Japan. The findings indicated that domestic nationalist sentiment played a key constraining role in influencing Chinese outbound travel decision-making, followed by current political factors, while quality products and service, as well as social environment encouraged tourists to travel. This research also found that visitors and non-visitors have perception differences in terms of travel barriers and attractiveness of travel.  相似文献   
53.
阳江五金刀剪产业作为阳江市的传统优势产业,经过不断发展,至今已成为我国最大的五金刀剪产业集群。近年来,集群内过度竞争、技术创新不足、技术性贸易壁垒和价格竞争优势丧失等问题严重制约着阳江五金刀剪产业的持续健康发展。本文针对这些问题,提出了相应的对策,旨在为实现产业的持续健康发展提供指导意见。  相似文献   
54.
This article qualitatively identifies and explains the barriers that foreign cleantech start‐ups can encounter when attempting to enter the Chinese market, as well as the possible strategies that can help overcome these barriers. We base our analysis on interviews with Chinese and foreign entrepreneurs and facilitators. To structure the analysis of such barriers, we use the components of the entrepreneurial ecosystem. We then explain the barriers using institutional theory. We demonstrate that they are caused either by the regulations in China or by the difference between Chinese and Western logics. We further recommend that cleantech entrepreneurs come prepared to China, remain flexible, associate themselves with reputable partners and take advice from those familiar with business in China. Cultural–cognitive barriers might be overcome by integrating the communities of foreign and Chinese start‐ups. Regulative barriers can be removed by the Chinese Government, but this conflicts with the logic of state control. Copyright © 2015 John Wiley & Sons, Ltd and ERP Environment  相似文献   
55.
Sustainable Jet Fuel (SJF) represents an important component of the airline industry's strategy to simultaneously reduce GHG emissions while meeting a growing demand for international air travel. SJFs also have the potential to provide fuel supply diversification and security, enhance fuel price stability and provide regional/rural economic development benefits. This paper measures and ranks perceived drivers and barriers to an economically viable SJF industry in a unique U.S. region, the U.S. Pacific Northwest (PNW), through personal interviews with key aviation fuel supply chain stakeholders conducted from June to September 2015. In addition to providing a fertile arena for this first effort to systematically assess these drivers and barriers, the U.S. PNW is unique due to the region's long strategic focus on aviation innovation and its importance to the regional economy, the seminal efforts in the region to outline a path forward on SJF beginning in 2010, and the relatively small population spread over a large geographic area with a limited number of “hub” airport nodes which geographically concentrates aviation fuel demand and distribution. Nineteen stakeholder interviewees acknowledge that, in order for regional SJF adoption-diffusion to occur, airline jet fuel buyers must drive the process, particularly as they deal with greenhouse gas (GHG) emission issues and related policy considerations. Important perceived barriers to SJF industry scale-up in the U.S. PNW include the high production costs of SJF and related issues, such as fuel logistics and quality control in the transport, storage, and blending of SJFs. Perceptions around chain-of-custody issues, such as blending, tracking, and crediting of SJFs and future SJF market share projections for the year 2030 were also examined. Incorporating stakeholder input into discussions about adding blended SJF into the U.S. aviation fuel supply provides needed insight for the biofuels industry, policymakers, and researchers.  相似文献   
56.
SUMMARY

Under the North American Free Trade Agreement (NAFTA), domestic environmental regulations can have the ultimate impact of erecting entry barriers against foreign companies. These actions by domestic firms are part of a corporate “shelter”-seeking strategy. Five recent cases are analyzed out of twenty-four environmental disputes relevant to NAFTA.  相似文献   
57.
The constraints that curb visitation to parks have received considerable research attention and remain an important issue. Constraints to outdoor leisure in parks include structural barriers, such as cost of entry, interpersonal barriers, for example, lack of a partner to visit with, or intrapersonal barriers, including lack of interest. Using a meta-analysis approach, this article integrates the findings of 22 North American studies with 541 estimates, conducted over a 30-year period, to determine the key constraints to park visitation based on various socio-demographic factors. The findings highlight the varying roles that constraints play in limiting the visitation of people according to race, age, gender, education and income. Gaps in the literature are identified, with implications for encouraging visitation for more constrained groups discussed. An agenda for future research is presented.  相似文献   
58.
The article uses the case study of coffee, tea and cocoa to analyse whether tariff escalation constitutes a barrier to market access that thwarts diversification efforts of developing countries into exports of value‐added agricultural processed products. It also examines the extent to which non‐tariff barriers act as market access barriers that constrain developing countries from developing their exports of agricultural processed products. Our analysis shows that tariff escalation is not the main barrier; rather it is the prevalence of non‐tariff barriers (including domestic non‐tariff barriers) that limits the ability of developing countries to increase their agricultural processed exports. This has important policy implications in terms of the emphasis that trade negotiators and policy planners should place on addressing non‐tariff barriers.  相似文献   
59.
60.
从1998年开始入市的国产品牌手机,十几年来经历了跌宕起伏的发展历程,2008年以来山寨机的兴起使国产品牌手机面临更为复杂的竞争环境,这些发展变化与手机业的制度性进入壁垒有极大的联系。在制度性进入壁垒的限制下,潜在进入企业的进入战略主要有寻租及贴牌生产,而在位企业的防御意识较弱。  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