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   17211篇
  免费   498篇
财政金融   3646篇
工业经济   1302篇
计划管理   2817篇
经济学   3707篇
综合类   191篇
运输经济   151篇
旅游经济   337篇
贸易经济   2782篇
农业经济   718篇
经济概况   2042篇
信息产业经济   3篇
邮电经济   13篇
  2023年   97篇
  2021年   99篇
  2020年   238篇
  2019年   334篇
  2018年   404篇
  2017年   420篇
  2016年   374篇
  2015年   256篇
  2014年   406篇
  2013年   1982篇
  2012年   484篇
  2011年   579篇
  2010年   529篇
  2009年   549篇
  2008年   532篇
  2007年   450篇
  2006年   427篇
  2005年   337篇
  2004年   367篇
  2003年   368篇
  2002年   362篇
  2001年   351篇
  2000年   374篇
  1999年   361篇
  1998年   375篇
  1997年   334篇
  1996年   286篇
  1995年   292篇
  1994年   285篇
  1993年   274篇
  1992年   298篇
  1991年   299篇
  1990年   244篇
  1989年   215篇
  1988年   193篇
  1987年   194篇
  1986年   199篇
  1985年   292篇
  1984年   290篇
  1983年   276篇
  1982年   264篇
  1981年   221篇
  1980年   199篇
  1979年   194篇
  1978年   180篇
  1977年   152篇
  1976年   141篇
  1975年   151篇
  1974年   113篇
  1973年   113篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
K.S. Larsen 《Futures》2003,35(2):163-167
Relations between rich and poor (across and within countries) appeared in some questions in Images; there were clear differences between what the powerful and the powerless hoped and expected from the future. This is compared with what actually happened and a deeper analysis is made of ‘power’ as an organizing concept. It turned out that the pessimism associated with powerlessness tended to make better predictions.  相似文献   
62.
We evaluate the appropriateness of regulation within the Canadian cable television industry by applying both parametric and non-parametric approachesto measure scale efficiency. Although we begin with a sample offering adequatedegrees of freedom for parametric estimation, important policy issues lead us toconsider further estimation over sub-samples. Since some of these sub-samplesare small enough that parametric models cannot guarantee reliable estimates, weobtain production characteristics non-parametrically through data envelopmentanalysis. The nonparametric results for scale efficiency support the parametricresults. We find evidence against a natural monopoly argument that might havejustified continuation of the mandated monopolization of Canadian cable televisionservice. By the end of the sample period, there were no longer substantial economiesof scale in most relevant markets.  相似文献   
63.
This paper employs a latent variable approach to isolate the effects of changing tastes on the share of total meat expenditure on different categories of meat products in Greece during the period 1965–1995. We find that changes in the relative expenditure on different categories of meat cannot be explained by changes in the relative prices of the different meat products and increased expenditure alone. For pork products in particular, the increase in the share of expenditure has been greater than would be expected as a result of the relative fall in their price. The increase can therefore be associated with changes in taste. This finding is of general interest to those conducting empirical research into consumer behaviour both in economies where there have been significant changes in patterns of food consumption, and where, as in the case of many less industrialised economies, rapid structural changes in food consumption patterns are still to come. It is also of importance to policy makers in assessing die effectiveness of advertising or promotional campaigns in influencing longer term changes in consumer preferences for different products.  相似文献   
64.
Social constructionist theories of gender are utilised to explore the relationship between household accounting and patriarchy during the early twentieth century in the USA and Britain. This period witnessed a reformulation of the ideology of domesticity founded on precepts derived from modish scientific management. It is argued that the suite of calculative techniques prescribed by ‘household engineers’ merely attempted to occupy middle class women in the domestic sphere. Rather than offering a source of professionalisation and liberation, the practice of financial management, costing, record keeping and time and motion study, contributed to a reassertion of private patriarchy, confirmed the gendered nature of spatiality, reinforced the role of woman as a consumer and diverted attention from career building outside the home.  相似文献   
65.
66.
We characterize optimal time profiles of risk-reducing expenditures and wreck probabilities for petroleum platforms. The input to our analysis is the development of wreck cost, direct and imputed. Particular attention is paid to the question of how private companies deviating from socially optimal standards may be induced to comply with such standards by means of a) a time-variant penalty, b) a no-wreck bonus and c) a time-invariant penalty.  相似文献   
67.
Employee relations in non-union settings remain largely uninvestigated by industrial relations researchers. This article examines the management of employee relations in establishments in high technology industries in the Southeast of England - a sector and locality frequently identified with high levels of non-unionism. Moreover, high technology firms are frequently seen as exemplars of new human resource management techniques designed to substitute for unions. Our data from postal and interview surveys of 115 establishments suggests that HRM is only one, and by no means the dominant, approach to managing employee relations in high technology establishments.  相似文献   
68.
In this article we show that quantitative methods for multi-criteria evaluation have three serious shortcomings. First, the addition of an alternative which has bad criterion scores may distort the comparison between other alternatives. Second, the addition of a criterion which does not differentiate between alternatives may distort the comparison between alternatives. Third, when a ranking of alternatives is derived from a multi-criteria evaluation, it suggests complete transitivity. It is shown that intransitivity may occur.Therefore a stepwise procedure is recommended. It involves the removal of all criteria which do not or hardly differentiate between the alternatives and a pairwise evaluation of alternatives.  相似文献   
69.
70.
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   
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