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   10388篇
  免费   241篇
财政金融   1979篇
工业经济   1008篇
计划管理   1699篇
经济学   2327篇
综合类   130篇
运输经济   80篇
旅游经济   200篇
贸易经济   1837篇
农业经济   549篇
经济概况   816篇
信息产业经济   2篇
邮电经济   2篇
  2023年   53篇
  2021年   48篇
  2020年   120篇
  2019年   155篇
  2018年   167篇
  2017年   200篇
  2016年   205篇
  2015年   139篇
  2014年   208篇
  2013年   1337篇
  2012年   270篇
  2011年   386篇
  2010年   264篇
  2009年   325篇
  2008年   308篇
  2007年   321篇
  2006年   321篇
  2005年   296篇
  2004年   271篇
  2003年   296篇
  2002年   293篇
  2001年   256篇
  2000年   220篇
  1999年   222篇
  1998年   231篇
  1997年   220篇
  1996年   197篇
  1995年   164篇
  1994年   151篇
  1993年   177篇
  1992年   158篇
  1991年   155篇
  1990年   130篇
  1989年   113篇
  1988年   115篇
  1987年   99篇
  1986年   118篇
  1985年   183篇
  1984年   197篇
  1983年   155篇
  1982年   159篇
  1981年   149篇
  1980年   156篇
  1979年   152篇
  1978年   107篇
  1977年   106篇
  1976年   98篇
  1975年   73篇
  1974年   97篇
  1973年   53篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
61.
A bstract . A number of lake restoration demonstraton projects have been launched by the Environmental Protection Agency as a result of Public Law 92-500. To evaluate the cost-effectiveness of these public investment projects requires the development of an assessment model. The proposed Benefit/Cost Cross-Impact Probabilistic Approach (BCCIPA) is one attempt at assessing the interdependent socioeconomic and environmental impacts of the lake restoration project over time, both quantitatively and qualitatively, so that various changes brought about by the project can be investigated and evaluated in two comparative stages for three points in time—before, during and after project implementation.  相似文献   
62.
THEORIES OF CHOICE UNDER IGNORANCE AND UNCERTAINTY   总被引:1,自引:0,他引:1  
Abstract. In this paper, Knight's distinction between risk and uncertainty, and its significance for economic analysis are examined. The paper consists of a survey of some recent developments on the theory of choice under uncertainty and some applications of these theories to problems for which Bayesian Decision Theory has not proved entirely satisfactory. Two problems are examined in detail. The first is that of finance and insurance and the second is that of risktaking behaviour with special emphasis on lotteries.  相似文献   
63.
64.
This research was designed to see whether a reconceptualization of social distance (as measured by social class variables) between shoppers and stores would provide a basis for understanding store avoidance behavior. A survey of shoppers classified into two distinct social classes investigated their images, including social class images, of two stores that had been selected as representatives of upscale and downscale retailers. A new measure of social distance was proposed and evaluated. Controlling for other functional aspects of store image such as price and personnel, the social distance measure was found to be influential in discriminating shopping frequency groups for the two stores, providing evidence that people tend to avoid stores that are perceived as being socially distant from themselves.  相似文献   
65.
ABSTRACT ** : The use of performance indicators for the evaluation and comparison of efficiency in service provision in the public and related sectors of the economy is continuously developing. While they often represent a step forward, to the extent that they focus attention on the objectives of the organization in question, it is frequently suspected that they fail to take into account non-controllable environmental factors. To do so requires multivariate techniques of analysis. This paper compares the results of three such methods with the raw performance indicators. It confirms the importance of non-controllable factors but also shows that different multivariate methods give results which do not always agree. Understanding the properties of different approaches is essential in drawing conclusions about performance.  相似文献   
66.
The paper analyses the dynamics of some duopoly output games involving the Cournot, Market-Share and Nichol strategies. The model assumes linear price and cost functions and supposes that outputs are adjusted instantaneously at discrete time intervals. For all games considered, equilibrium is either reached after a finite number of moves or a stable approach to equilibrium occurs as t → ∞. In fact, apart from a few uninteresting cases, arising from the oversimplified form of the Market-Share strategy, all equilibrium points lie on specified parts of the firms' Cournot loci.  相似文献   
67.
68.
The paper analyzes the employment policy of a firm that can vary both hours and the level of employment. The analysis differs from previous work in the adjustment cost literature in that the firm is able to change its employment not only through hires, layoffs, and quits, but also by recalls of employees who were previously laid off. Thus, we introduce the possibility of the firm inventorying the labor input. It is shown that this labor inventory potential is necessary if the firm is to ever lay off workers. Further, it is demonstrated that linear rather than strictly convex adjustment costs are then required if the firm is to always recall employees who were previously laid off prior to hiring new workers.  相似文献   
69.
In previous discussions it has been argued that tax competition between local governments results in a tax burden on business that is less than the cost of public services for business and in suboptimal levels of public expenditures for residents. However, this conclusion has never been substantiated by a full theoretical treatment. Here a theoretical model of tax competition is developed between metropolitan areas, with labor perfectly immobile and two local public goods, one for residents and one for business. For “plausible” parameter values, numerical solutions of the optimality conditions are computed by means of a nonlinear programming algorithm.  相似文献   
70.
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