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   9085篇
  免费   37篇
财政金融   1867篇
工业经济   646篇
计划管理   1553篇
经济学   1881篇
综合类   113篇
运输经济   57篇
旅游经济   164篇
贸易经济   1377篇
农业经济   309篇
经济概况   1149篇
邮电经济   6篇
  2020年   86篇
  2019年   133篇
  2018年   148篇
  2017年   161篇
  2016年   149篇
  2015年   108篇
  2014年   149篇
  2013年   970篇
  2012年   224篇
  2011年   252篇
  2010年   228篇
  2009年   242篇
  2008年   233篇
  2007年   181篇
  2006年   193篇
  2005年   168篇
  2004年   182篇
  2003年   176篇
  2002年   179篇
  2001年   167篇
  2000年   171篇
  1999年   159篇
  1998年   178篇
  1997年   170篇
  1996年   158篇
  1995年   125篇
  1994年   138篇
  1993年   146篇
  1992年   161篇
  1991年   165篇
  1990年   119篇
  1989年   119篇
  1988年   103篇
  1987年   117篇
  1986年   124篇
  1985年   161篇
  1984年   140篇
  1983年   168篇
  1982年   140篇
  1981年   128篇
  1980年   143篇
  1979年   132篇
  1978年   94篇
  1977年   109篇
  1976年   103篇
  1975年   107篇
  1974年   95篇
  1973年   81篇
  1972年   63篇
  1971年   62篇
排序方式: 共有9122条查询结果,搜索用时 15 毫秒
31.
32.
Delay costs play a role in Coasean bargaining over environmental conflicts when an injunction restricts actions until a settlement is reached. Results from the lab suggest that efficiency remained relatively robust to discrete and increasing marginal delay costs, but declined significantly with nonincreasing marginal delay costs. Bargainers appear to deal with probability and consequences separately rather than in combination as maintained by expected utility theory, and as such, neglect ends over means. How the distribution of wealth is best organized depends on perspective: constrained self-interest best organizes behavior if expected utility is maintained; pure self-interest dominates if we acknowledge the probability–consequence heuristic.  相似文献   
33.
34.
At a theoretical level this article discusses Piketty’s hypothesis that the distribution of income and wealth tends to become more concentrated over time when the rate of return on capital is greater than the growth rate of real output. We develop a post Keynesian model of growth and distribution showing that once capital is differentiated from wealth, the increase in income and wealth concentration actually occurs when the rate of valorization of financial and real estate assets is greater than the growth rate of real output, and that this situation may be triggered by financial liberalization.  相似文献   
35.
This paper discusses a method for analyzing the pricing and production behaviour of a mature oligopoly, characterized by stable market shares and well established patterns of price leadership. The oligopoly utilized as an example is the US primary producers of copper. The paper develops three pricing/production strategies which are felt to be most relevant to the US primary producers. While one of these strategies (collusive monopolistic pricing) is more desirable to the oligopoly, the ability of the oligopoly to impose any of the strategies depends upon market conditions and government stockpile intervention. A generalized logit probability model is developed and estimated to indicate the effects of market conditions and government action upon the ability of the oligopoly to impose its desired pricing/production strategies.  相似文献   
36.
37.
This paper reports the results of research aimed at exploring why some takeover bids give rise to merger while other do not and, using as a basis of comparison matched samples of actual and abandoned mergers, the performance effects of mergers. In this work, 50 cases of abandoned mergers occurring between 1965 and 1975 were analysed against a matched sample of 50 actual mergers. In addition, 33 cases of contested bids were also analysed. Variables used reflected managerial, shareholder and financial strength considerations. Analysis covered a period three years before to three years after each bid. Techniques of analysis were differences of means and discriminant analysis. The results show that there are important differences between target companies that are acquired and those that successfully resist takeover bids. They also show the influence of managerial and financial variables as the key to a successful takeover bid rather than variables reflecting shareholder interests. Analysis of the effects of the outcome of the bids suggests that companies involved in abandoned mergers recorded a stronger performance over the subsequent 1–3 years than those that made acquisitions, especially where shareholder and financial considerations are concerned. Target companies that resisted takeover bids showed a significant performance improvement.  相似文献   
38.
High transaction costs are detrimental to the efficient operation or existence of markets for inputs and outputs. The cost of information and the costs associated with the search for trade partners, the distance to formal markets and contract enforcement are likely to influence the marketing of food crops. This study hypothesises that the level of income generated from food-crop sales by small-scale farmers in the Impendle and Swayimana districts of KwaZuluNatal is influenced by transaction costs and certain household and farm characteristics. Regression analysis shows that the depth of marketing methods is significantly influenced by transaction cost proxies, such as cooperation with large commercial farmers and ownership of means of transport. Results from a block-recursive regression analysis show that the level of crop income generated is determined by the depth of marketing methods, the size of allocated arable land and off-farm income. Households with lower transaction costs, sizeable allocated land and off-farm income can be expected to generate higher income from food crops. Investment in public goods such as roads, telecommunications and an efficient legal system (to uphold commercial contracts), as well as farmer support services (input supply, extension, marketing information and research), would probably raise farm and non-farm income by reducing transaction costs. This would increase the effective demand for locally produced goods and services, thus contributing to rural employment and livelihoods within rural communal areas.  相似文献   
39.
We show that the asymmetric effects of income taxes and special items for profit and loss firms contribute to a discontinuity at zero in the distribution of earnings. Income taxes draw profit observations towards zero while negative special items pull loss observations away from zero. These earnings components are thus expected to contribute to a discontinuity even in the absence of discretion. We show our results are not an artifact of deflation and that other common components of earnings do not have similar effects on the earnings distribution around zero.
Karen K. NelsonEmail:
  相似文献   
40.
An interesting question in tourism management is why tourist firms obtain different performance levels. Firm performance in the tourism industry depends mainly on the destination where the company operates (location or destination effect), and on firm internal resources and characteristics (firm effect). The purpose of this paper is to determine the relative importance of the firm and destination effects using a multilevel approach and hierarchical linear models. The findings show that both effects impact significantly on firm performance, and also that the firm effect is more important than the destination effect. We equally provide some insights about the relationships between these two levels with the aim of building bridges between them.  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