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   72396篇
  免费   2559篇
  国内免费   844篇
财政金融   5224篇
工业经济   3518篇
计划管理   18005篇
经济学   12154篇
综合类   12280篇
运输经济   598篇
旅游经济   1491篇
贸易经济   9188篇
农业经济   4571篇
经济概况   8769篇
信息产业经济   1篇
  2024年   89篇
  2023年   835篇
  2022年   1112篇
  2021年   1777篇
  2020年   2111篇
  2019年   1475篇
  2018年   1280篇
  2017年   1441篇
  2016年   1586篇
  2015年   1970篇
  2014年   5507篇
  2013年   6306篇
  2012年   6109篇
  2011年   7617篇
  2010年   5676篇
  2009年   4487篇
  2008年   4515篇
  2007年   4031篇
  2006年   4091篇
  2005年   3093篇
  2004年   2207篇
  2003年   1848篇
  2002年   1420篇
  2001年   1314篇
  2000年   922篇
  1999年   559篇
  1998年   330篇
  1997年   247篇
  1996年   202篇
  1995年   145篇
  1994年   145篇
  1993年   83篇
  1992年   69篇
  1991年   56篇
  1990年   37篇
  1989年   22篇
  1988年   28篇
  1987年   12篇
  1986年   6篇
  1985年   208篇
  1984年   241篇
  1983年   192篇
  1982年   131篇
  1981年   62篇
  1980年   83篇
  1979年   54篇
  1978年   41篇
  1977年   22篇
  1975年   2篇
  1973年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Abstract

This article investigates the correlates of diversification away from oil and natural gas dependence in the context of the twenty-first century resource boom (and bust). In a sample of 40 oil- and gas-dependent economies, the majority showed significant sectoral diversification of GDP, but exports remained highly concentrated in fuel exports. Regression analysis indicates that countries that began the boom with higher levels of oil and gas dependence, poorer countries, and those with significantly larger- or smaller-than-average populations were more successful in diversifying their GDP during the commodities boom. Governance matters – more effective, capable bureaucratic structures are associated with greater GDP diversification away from oil and gas – though the effects are not uniformly positive. For any given level of government effectiveness, stronger rule of law is associated with less GDP diversification. Education appears to affect GDP and export diversification differentially. Consistent with endogenous growth theory, countries with more educated populations saw greater growth in their nonresource sectors than countries with less educated populations, though education is associated with greater export concentration. Internal economic diversification in the twenty-first century has been less a matter of policy formation and implementation, and more a matter of factors that shape the policy-making environment.  相似文献   
992.
ABSTRACT

This article reviews the literature on gender and entrepreneurship in technology to explore individual and contextual factors maintaining the token status of women in this field. It examines how the intersection of gender and context influences participation rates in entrepreneurship, and suggests that the deeply embedded cultural and cognitive associations that frame both technology and entrepreneurship as masculine concepts create barriers for women when these contexts overlap. It offers a framework for research and practice that aids in the analysis of complex multi-level barriers that control access to the forms of capital necessary for initial and continued participation in technology entrepreneurship. Given calls for women to participate more fully in high-growth technology ventures, it highlights the need for research to incorporate broader analytical perspectives that simultaneously examine both the barriers faced by women in these contexts and the factors that systemically sustain them.  相似文献   
993.
This research aims to understand the performance of purchasing social responsibility (PSR) through moderating effect of purchasing strategic integration. The results show that PSR directly influences purchasing performance, while the relationship between PSR and purchasing performance is partially mediated by organizational learning. Moreover, strategic integration negatively moderates the relationship between PSR and purchasing performance. This study suggests that the adoption of PSR affects the operations of both buyers and suppliers in a supply chain that further encourage organizational learning and increases purchasing efficiency. The results also show that organizations may realize this effect of PSR practices but may focus on other purchasing practices, which affects purchasing performance. Copyright © 2018 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   
994.
During the last few decades, a growing body of literature has been produced on various aspects of interorganizational relations (IOR) in tourism. This paper provides a review of that literature. The findings are based on a review of 269 empirical papers published in 37 tourism journals between 1989 and the first quarter of 2017. The review identifies six main research themes relating to relationship formation, structure and activities, governance, maintenance, outcomes, and evolution. Based on the insights from this review, an organizing framework for research on IOR in tourism is developed and four opportunities for advancing research on IOR in tourism are proposed relating to the pursuit of causal inference, supply networks as a unit of analysis, quantifying outcomes of IOR in tourism, and addressing marginalized topics.  相似文献   
995.
以Z风景区3A创4A愿景中当地政府与风景区经营商两个主体的决策行为为研究对象,以制度经济学为理论基础,采用博弈论模型进行分析。结果表明:在政府和经营商目标不一致的前提下,从政府来说,在政绩驱动下急于达到创4A目标,但政府又不能滥用纳税人的钱追加投资,其意愿是让商家继续投资,为创4A发力;从商家来说,虽然创4A有利于项目营利空间,但是客观上有规避未来市场不确定性和投资回报周期长双重风险的意识,还可能由于政府对项目创4A的急切性,导致商家存在"政府有可能追加投资,自己"搭便车"的"等靠要"机会主义思想,追加投资意愿不高;反过来也可能存在政府等待商家投资的搭便车行为。为此,提出以政商共同利益最大化为目标,通过改变激励措施,使政商博弈达到合作状态下较优的均衡结果。  相似文献   
996.
经济新常态下,创业是推动中国经济发展、改善民生的重要途径。创业过程的风险性、不确定性及正外部性需要政府给予积极支持。基于2007-2015年中国内地30个省市(除西藏外)数据,运用动态面板模型,考察地区财政支出和创业活动的关系。研究结果表明:财政支出规模对创业活动数量及创业活动质量具有滞后的积极作用;财政支出规模的滞后效应源于财政支出结构的滞后效应,不同财政支出结构对创业活动质量影响的差异较大;同时,创新是提升创业活动质量的重要手段。因此,政府应积极支持“大众创业、万众创新”,各地区财政创业扶持资金应该从规模和结构上进行调整,重点优化有利于创新的支出结构,为创业提供良好的公共环境。  相似文献   
997.
以中国企业为研究对象,运用复合案例研究方法分析与构建了科学型企业商业模式概念模型,分离出科学平台和价值平台两个独特要素,进而构建以科学平台-价值平台互动为核心的P2P商业模式运作模型,并根据不同类型科学型企业,分析模型的有效性、适用性以及模型在不同类型科学型企业中的共性与差异,最后总结出科学型企业商业模式特点及企业管理对策。  相似文献   
998.
We investigate whether non–North American (non‐NA) institutional investment in firms listed on the Canadian stock markets increased between the pre‐ and post‐IFRS adoption periods relative to such investment in firms listed on the U.S. stock markets. Prior to IFRS adoption, Canada had high‐quality financial reporting standards that were similar to the U.S. standards. As consequences of IFRS adoption, Canadian financial statements became more comparable with European and other IFRS country financial statements and less comparable with neighboring U.S. financial statements. Thus, a question of interest is whether the enhanced comparability with non‐NA companies was beneficial in terms of attracting non‐NA investment to Canadian companies versus U.S. companies. We find that there was no significant change in non‐NA institutional investment in Canadian firms relative to U.S. firms for the very largest (fifth quintile) and for smaller (first, second, and third quintiles) Canadian companies. However, intermediate‐sized Canadian companies in the fourth size quintile lost non‐NA institutional investment relative to their U.S. peer companies, suggesting that non‐NA investors cared more about comparability with U.S. peer companies than non‐NA peer companies for companies in this size quintile.  相似文献   
999.
We use several U.S. and euro‐area surveys of professional forecasters to estimate a dynamic factor model of inflation featuring time‐varying uncertainty. We obtain survey‐consistent distributions of future inflation at any horizon, both in the U.S. and the euro area. Equipped with this model, we propose a novel measure of the anchoring of inflation expectations that accounts for inflation uncertainty. Our results suggest that following the Great Recession, inflation anchoring improved in the United States, while mild de‐anchoring occurred in the euro area. As of our sample end, both areas appear to be almost equally anchored.  相似文献   
1000.
ABSTRACT

The aviation e-service system is an important part of support for business communication in regions covered by Belt and Road initiative. In exploring the role of airline companies in this system, we examine the structure of the network, which consists of airlines interconnections based on small data of individual attributes of aviation companies in aviation e-services, and study these interconnections across different groups using block modeling. The heuristic solution of airline companies in development of international communication and cooperation is further discussed. Among our policy implications for global managers, we suggest the enhancement of cross-regional cooperation among airlines.  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