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   14530篇
  免费   353篇
  国内免费   13篇
财政金融   2634篇
工业经济   1095篇
计划管理   2425篇
经济学   3062篇
综合类   303篇
运输经济   107篇
旅游经济   312篇
贸易经济   2651篇
农业经济   771篇
经济概况   1513篇
邮电经济   23篇
  2021年   99篇
  2020年   164篇
  2019年   250篇
  2018年   326篇
  2017年   361篇
  2016年   335篇
  2015年   233篇
  2014年   359篇
  2013年   1410篇
  2012年   393篇
  2011年   430篇
  2010年   410篇
  2009年   429篇
  2008年   478篇
  2007年   454篇
  2006年   363篇
  2005年   364篇
  2004年   315篇
  2003年   331篇
  2002年   309篇
  2001年   283篇
  2000年   285篇
  1999年   258篇
  1998年   272篇
  1997年   270篇
  1996年   268篇
  1995年   250篇
  1994年   232篇
  1993年   252篇
  1992年   242篇
  1991年   234篇
  1990年   218篇
  1989年   189篇
  1988年   144篇
  1987年   179篇
  1986年   177篇
  1985年   266篇
  1984年   276篇
  1983年   267篇
  1982年   242篇
  1981年   237篇
  1980年   203篇
  1979年   213篇
  1978年   152篇
  1977年   159篇
  1976年   135篇
  1975年   108篇
  1974年   106篇
  1973年   93篇
  1972年   66篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
102.
An earlier article, drawing on the mathematical theory of rules and rule complexes, extends and generalizes game theory (GGT). The theory has been used to conceptualize and analyze diverse social relationships, roles, and games as particular types of rule complexes.For instance, a social role, as a major basis of a parent's action in a game, consists of at least four key components – which are mathematical objects – in the determination of action: value complex, model of reality (including beliefs and knowledge bases), a repertoire of acts, routines, programs, and strategies, and modality, a role-specific algorithm for determining or generating action in game settings. This article applies and extends GGT in analyses of a market bargaining game (a type of open game) and of the classical game of prisoners' dilemma (a type of closed game). The applications show the concrete effects of social embeddedness on game structuring, game interaction patterns and outcomes, and social equilibria.  相似文献   
103.
We show that given a value function approximation V of a strongly concave stochastic dynamic programming problem (SDDP), the associated policy function approximation is Hölder continuous in V.  相似文献   
104.
While it is well recognized that US metropolitan areas are polycentric, there is little consensus as to the appropriate method for identifying concentrations of employment within them. Existing methods suffer from strong assumptions about parametric form, misspecification, or reliance on local knowledge to calibrate model parameters. This paper introduces a new nonparametric method for identifying subcenters. Results indicate that this, more flexible, nonparametric approach yields greater accuracy with regard to both urban and suburban centers compared with other approaches. This approach should provide better data for the numerous topics that depend on the spatial accounting of employment within metropolitan areas.  相似文献   
105.
Previous research in the areas of tournaments, human capital, and learning theory have shown that promotion is a function of human capital, experience, ability, and wage growth. These variables were used to estimate a Cox regression using data from a single firm. The survival rates for a Cox regression and an up-or-out regression model are computed. The results suggest that certain up-or-out models are valid even when the firm does not have such a policy and show that an up-or-out procedure predicts the promotion and exit survival rates as well as a Cox regression.  相似文献   
106.
The HIV/AIDS epidemic has focused increased attention on catastrophic illnesses in the workplace, and because of the stigmas associated with HIV/AIDS, it raises three primary concerns for organizations: (1) organizational avoidance of legal sanctions and litigation; (2) the maintenance of organizational legitimacy; and (3) organizational protection of employee rights. Although many organizations adopt legalistic responses to cope with these concerns, the analysis presented in this article suggests that while legalistic approaches function well to protect organizational interests in terms of both legal liability and legitimacy, the are only partially able to protect employee rights. Drawing upon the limited literature on HIV/AIDS in the workplace, this article presents an agenda for future research on organizational responses to HIV/AIDS.  相似文献   
107.
Abstract . Developing countries face an inconsistency between the need for more equitable distribution of income and wealth between classes and groups and the goals of an industrial relations system in which the trade unions have a systematic commitment to allied political parties to support them in exchange for some control over economic and social policy, or where unions compete with parties for popular support of certain social and political goals. This is designated as 'political unionism' in contradistinction to 'business unionism' where unions support any party whose overall strategy and objectives are most compatible. The analysis shows that ‘political unionism’ led, in Jamaica and in Trinidad and Tabago, to lags in growth which make industrial relations reform a necessity of an effective program of social change.  相似文献   
108.
Growth in U.S. agriculture is linked to the non-farm economy through domestic terms of trade and factor market adjustments. With almost stable input growth, the relatively large contributions from growth in Total Factor Productivity (TFP) are passed on to intermediate and final consumers in the form of declining real prices for primary farm products. The resulting net growth in the real value of farm output (GDP) is relatively low (0.25% per annum). The decomposition of TFP suggests that public agricultural stock of knowledge and infrastructure are robustly associated with TFP growth, while spill-overs from private agricultural and economy wide research and development (R and D) are positive but, relatively small.  相似文献   
109.
The purpose of this study was to (a) compare the occupational sex stereotypes of 366 college students with those reported by Shinar in 1975, and (b) examine the relationships between demographic, experiential, and attitudinal variables and these occupational sex stereotypes. The results indicated a significant difference in occupational ratings from Shinar's study, with females' perceptions shifting more than males' perceptions. In addition, subjects' gender, tenure with female managers, and attitudes toward women as managers, were shown to be significant predictors of occuptational ratings. The implications of these findings for both employees and managers are then discussed.  相似文献   
110.
We propose estimation of a stochastic production frontier model within a Bayesian framework to obtain the posterior distribution of single-input-oriented technical efficiency at the firm level. All computations are carried out using Markov chain Monte Carlo methods. The approach is illustrated by applying it to production data obtained from a survey of Ukrainian collective farms. We show that looking at the changes in single-input-oriented technical efficiency in addition to the changes in output-oriented technical efficiency improves the understanding of the dynamics of technical efficiency over the first years of transition in the former Soviet Union.  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