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   18812篇
  免费   550篇
财政金融   3835篇
工业经济   1465篇
计划管理   3153篇
经济学   4061篇
综合类   193篇
运输经济   144篇
旅游经济   320篇
贸易经济   3088篇
农业经济   821篇
经济概况   2263篇
信息产业经济   3篇
邮电经济   16篇
  2023年   99篇
  2021年   122篇
  2020年   267篇
  2019年   350篇
  2018年   454篇
  2017年   470篇
  2016年   419篇
  2015年   289篇
  2014年   453篇
  2013年   2180篇
  2012年   526篇
  2011年   652篇
  2010年   598篇
  2009年   647篇
  2008年   579篇
  2007年   516篇
  2006年   488篇
  2005年   403篇
  2004年   404篇
  2003年   419篇
  2002年   395篇
  2001年   385篇
  2000年   404篇
  1999年   405篇
  1998年   404篇
  1997年   338篇
  1996年   309篇
  1995年   288篇
  1994年   306篇
  1993年   307篇
  1992年   334篇
  1991年   328篇
  1990年   252篇
  1989年   218篇
  1988年   202篇
  1987年   204篇
  1986年   212篇
  1985年   300篇
  1984年   304篇
  1983年   289篇
  1982年   259篇
  1981年   241篇
  1980年   207篇
  1979年   206篇
  1978年   183篇
  1977年   157篇
  1976年   147篇
  1975年   157篇
  1974年   125篇
  1973年   118篇
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
941.
The introduction of the euro generated substantial interest in the impact of currency unions (CUs) on trade flows. Initial estimates suggested a tripling of trade, which gave rise to a literature in search of “more reasonable” CU effects. Theoretical derivations of the gravity model highlight, however that the CU literature neglects to control simultaneously for general equilibrium effects (multilateral resistance) and unobserved bilateral heterogeneity among trade partners. Once we introduce the appropriate controls, CU trade effects are shown to range around 50%. We also highlight that the practice of reporting average CU effects generates misleading results. The average effect is shown to be a composite of disparate individual CU effects ranging from 40% (euro) to about 100% (Central African franc).  相似文献   
942.
In many firms, the marketing department plays a minor role in new product development (NPD). However, recent research demonstrates that marketing capabilities more strongly influence firm performance than other areas such as research and development. This finding underscores the importance of identifying relevant capabilities that can improve the position of marketing within the NPD process as part of the quest to improve innovation performance. However, thus far, it has remained unclear precisely how the marketing department can increase its influence on NPD to enhance a firm's innovation performance. The results of this study demonstrate that the relationship between marketing capabilities and innovation performance is generally mediated by the decision influence of marketing on NPD. In particular, both marketing research quality and the ability to translate customer needs into product characteristics serve to increase marketing's influence on NPD. This increased influence, in turn, positively contributes to overall firm innovation performance. Hence, these results show that in addition to having the appropriate marketing capabilities, the marketing department must achieve a status in which these capabilities can translate into performance implications.  相似文献   
943.
This article addresses the impact of productivity, corruption, and trade openness on the stock returns of 265 industrial companies listed in eight Eastern European fast-emerging markets, over the 2004-2013 period. Through a three-factor model that includes both measures at firm level and macro-level control variables, our findings suggest that country corruption index is negatively correlated with the total annual return of the stocks of the listed industrial companies of our sample. Moreover, the most productive firms are featured by higher stock returns, while leverage seems not to be a key predictor of stock returns. In addition, the article uncovers innovative evidence about trade openness that is negatively correlated with stock returns due to its connection with the recent financial crisis. That is, firms operating in markets that are more open to trade show a higher degree of interconnection with other economies and are more likely to undergo the effects of negative fluctuations from foreign markets during the economic crisis. © 2015 Wiley Periodicals, Inc.  相似文献   
944.
We develop a dynamic general equilibrium model to analyze the macroeconomic effects of a shift in portfolio preferences of foreign investors. The model has two countries and two asset classes (equities and bonds). It is characterized by imperfect substitutability between assets and allows for endogenous adjustment in interest rates and asset prices. To illustrate the mechanics of the model, we calibrate it to analyze a transfer of reserves from central banks to sovereign wealth funds (SWFs). We look separately at two diversification paths: a shift away from dollar assets (path 1), and a shift away from US bonds to US equities (path 2). In path 1, the dollar depreciates and US net debt falls on impact and increases in the long run. In path 2, the dollar depreciates and US net debt increases in the long run.  相似文献   
945.
This paper applied cost-effectiveness analysis to the use of drug therapy in the treatment of AIDS. The empirical approach adopted overcame the facts that the samples of patients had varying clinical prognoses, had variable entry dates into the samples and, because AIDS is a terminal disease, had variable exit dates. Holding these variables constant, administration of the drug AZT proved to be a less costly alternative than other existing palliatives for AIDS. The sub-sample of patients treated with AZT had lower hospitalization costs, lower caring costs and sufferers had an increased ability to continue to participate for longer as economically active members of society.  相似文献   
946.
Arrow's (1951) Impossibility Theorem is the idea that, given several well-known assumptions, the social orderings of particular alternatives that are meant to reflect individuals' preferences must match the preferences of an arbitrary individual (the dictator). A social-choice rule other than dictatorship is impossible. Following from Fountain (2000), the author presents another graphical proof of the theorem that is intended to be more accessible to students and teachers of economics. The principal strength of this approach is that the patterns of agreements and conflicts over all possible combinations of two individuals' rankings of alternatives are transparent; appreciating these patterns is the key to intuitively understanding Arrow's theorem. A self-test for readers (or a classroom exercise for students) is included.  相似文献   
947.
The undeniable success of order-maintenance policing (also community policing or broken windows policing) is despite the deficiency in the theory which propelled the practice into policy: Wilson and Kelling's broken windows theory. We discuss what is wrong with the theory and why it nevertheless works when put into practice.  相似文献   
948.
We generalize May’s theorem to an infinite setting, preserving the elementary character of the original theorem. We define voting scenarios and generalized voting scenarios, and prove appropriate versions of May’s theorem. The case of generalized voting scenarios specialized to a countably infinite set of voters and the collections of all coalitions that have asymptotic density, shows that majority rule is the only aggregation rule that satisfies neutrality, irrelevance of null coalitions, anonymity, and positive responsiveness.  相似文献   
949.
950.
Effective communication of capital investment proposals can be critically important to an engineer's professional development. Engineers frequently have difficulty developing this effective communication, however, primarily because they lack a clear understanding of the corporate decision-makers' commercial perspective and related informational needs. The decision-makers' perspective and the capital budgeting process are explored and several communication strategies are suggested to assist the engineer in more effectively presenting his capital investment proposals. The value of communication technique and the importance of recognizing and dealing effectively with certain psycho-social factors in inter-personal communication are briefly described.  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