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   22459篇
  免费   597篇
财政金融   4030篇
工业经济   1551篇
计划管理   3919篇
经济学   5379篇
综合类   244篇
运输经济   176篇
旅游经济   341篇
贸易经济   3629篇
农业经济   1140篇
经济概况   2570篇
信息产业经济   3篇
邮电经济   74篇
  2023年   108篇
  2021年   148篇
  2020年   283篇
  2019年   453篇
  2018年   497篇
  2017年   525篇
  2016年   514篇
  2015年   351篇
  2014年   562篇
  2013年   2397篇
  2012年   776篇
  2011年   809篇
  2010年   700篇
  2009年   794篇
  2008年   726篇
  2007年   634篇
  2006年   608篇
  2005年   530篇
  2004年   462篇
  2003年   474篇
  2002年   420篇
  2001年   501篇
  2000年   457篇
  1999年   414篇
  1998年   471篇
  1997年   423篇
  1996年   413篇
  1995年   354篇
  1994年   360篇
  1993年   343篇
  1992年   347篇
  1991年   360篇
  1990年   329篇
  1989年   239篇
  1988年   251篇
  1987年   257篇
  1986年   236篇
  1985年   349篇
  1984年   343篇
  1983年   324篇
  1982年   279篇
  1981年   282篇
  1980年   276篇
  1979年   272篇
  1978年   219篇
  1977年   178篇
  1976年   181篇
  1975年   157篇
  1974年   146篇
  1973年   145篇
排序方式: 共有10000条查询结果,搜索用时 897 毫秒
101.
The political strength in the EC and UK of the belief that high levels of self-sufficiency make food supplies more secure is demonstrated and explained. The relationship is examined analytically and critically, taking particular account of the priority of food, adjustment costs, and linkages between agriculture and other sectors. The need for a policy of food security in Western Europe is discussed in relation to military, crop and trade uncertainties. Finally, the elements of a more rational policy, including measures of storage, procurement and production independence, are outlined.  相似文献   
102.
The historic focus of new products research has been on the ability of new products to enhance the profitability and competitive position of the innovating firm. In this article, Timothy Devinney shows that there exists an overlooked and potentially significant side effect associated with new product innovations: financial risk changes. He reports that significant financial risk changes occurred in approximately 50% of the new product announcements he examined. The magnitude of these financial risk changes translates into overestimates or underestimates of the firm's cost of capital by 17% to 18% and is strongly and positively related to the size of the firm and the firm's new product innovation activity.  相似文献   
103.
The purpose of this study was to find out if significant differences exist in patterns of expenditures between elderly and non-elderly consumers, taking poverty status into account. Cluster analysis was used to identify expenditure patterns. Four different expenditure patterns were found. Elderly middle-income and affluent households were more likely to belong to service-using cluster than non-elderly poor households. Nonelderly households were more likely to belong to shelter-dominated cluster than elderly households. Poor households were more likely to belong to homebound cluster, while non-poor households were more likely to belong to car-centred cluster.  相似文献   
104.
Present economic linkages between the European Union and East Asia are relatively underdeveloped despite the fact that a number of EU member states have deep historical associations within the region. It is imperative that EU business engages itself more intensively in East Asia if Europe is not to become marginalised in an emergent “Pacific century”. *** DIRECT SUPPORT *** A02GP109 00002  相似文献   
105.
We argue that the stakeholder perspective on corporate social responsibility is in the process of being enlarged. Due to the process of institutional isomorphism, corporations are increasingly adopting organizational features designed to promote proactivity over mere reactivity in their stakeholder relationships. We identify two sources of pressure promoting the emergence of the proactive corporation -- stakeholder activism and the recognition of the social embeddedness of the economy. The final section describes four organizational design dimensions being installed by the more proactive corporations today -- cooperation, participation, negotiation, and direct anticipation.  相似文献   
106.
Summary A sequential testing procedure called 2-SPRT for the meanμ of the negative binomial distribution with known exponentk is presented. For any fixedμ 0(μ 1<μ 0<μ 2), the 2-SPRT provides an asymptotic solution to the modified Kiefer-Weiss problem. Determination ofμ 0 such that the test provides an approximate solution to the Kiefer-Weiss problem is described. The behavior of the 2-SPRT and the Sequential Probability Ratio Test is investigated using Monte Carlo methods. The error probabilities and the average sample numbers are compared. All the computations were carried out on the Alabama Supercomputer.  相似文献   
107.
Dr. M. Riedel 《Metrika》1992,39(1):209-217
Summary In this note we characterize all linear transformations of random vectors which are invariant for a given parametric covariance family. Two one-dimensional covariance families are discussed in detail.  相似文献   
108.
It is shown how nominal exchange rate volatility can cause persistent deviations in the real exchange rate. The key to nominal rigidities is a capital market imperfection implying that agents cannot hedge perfectly against consumption risks. As a consequence, nominal changes have real effects by both affecting the ex post real purchasing power of savings and by affecting the ex ante incentives in savings and labor supply. The consequences of exogenous changes in the nominal exchange rate are considered in an OLG version of a two sector small open economy with competitive product and labor markets.J. Japan. Int. Econ.,December 1997,11(4), pp. 584–609. Department of Economics, University of Aarhus, 8000 Aarhus, Denmark.  相似文献   
109.
Summary In The Netherlands public debt management is in the hands of the budgetary policy-maker, whose recourse to the capital market can exceed or fall short of the total borrowing requirement in order to absorb or create liquidity. The conduct of that policy since the early 1960's is analyzed in this paper, emphasizing the importance of medium-term control over the public finances as a prerequisite for the ability of debt management to make a flexible contribution to monetary policy. During the 1960's this condition was satisfied and debt management followed a stable countercyclical pattern which, however, was abandoned after the early 1970's as the public finances swung into substantial disequilibrium.The author thanks J. Boughton, L. Bovenberg, D. Hendry, P. Masson, J. Muellbauer, and the referees for comments on earlier versions. However, the views expressed are his alone and do not necessarily represent those of the International Monetary Fund.  相似文献   
110.
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