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   141338篇
  免费   3349篇
  国内免费   2篇
财政金融   26713篇
工业经济   11984篇
计划管理   22555篇
经济学   30247篇
综合类   1476篇
运输经济   1031篇
旅游经济   2589篇
贸易经济   24135篇
农业经济   6370篇
经济概况   17304篇
信息产业经济   7篇
邮电经济   278篇
  2021年   874篇
  2020年   1700篇
  2019年   2492篇
  2018年   2434篇
  2017年   2604篇
  2016年   2803篇
  2015年   2190篇
  2014年   3514篇
  2013年   15785篇
  2012年   4323篇
  2011年   4321篇
  2010年   3849篇
  2009年   4488篇
  2008年   4061篇
  2007年   3399篇
  2006年   3742篇
  2005年   3698篇
  2004年   3256篇
  2003年   3062篇
  2002年   2973篇
  2001年   2751篇
  2000年   2702篇
  1999年   2544篇
  1998年   2409篇
  1997年   2466篇
  1996年   2278篇
  1995年   2085篇
  1994年   2104篇
  1993年   2054篇
  1992年   2125篇
  1991年   2038篇
  1990年   1870篇
  1989年   1724篇
  1988年   1643篇
  1987年   1666篇
  1986年   1739篇
  1985年   2504篇
  1984年   2410篇
  1983年   2196篇
  1982年   2078篇
  1981年   1991篇
  1980年   1946篇
  1979年   1902篇
  1978年   1693篇
  1977年   1660篇
  1976年   1414篇
  1975年   1308篇
  1974年   1209篇
  1973年   1205篇
  1972年   903篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
This article focuses on the housing issues of rural migrants arising from urbanization, with particular reference to chengzhongcun, a topic with considerable impact on policymaking. An attempt is made to understand the underlying rationale of self‐help in housing and the important role of chengzhongcun in sheltering rural migrants in the context of China's rural‐urban dichotomy. As demonstrated in this study, chengzhongcun accommodate, with little in the way of government resources and assistance, millions of rural migrants because of their social accessibility and affordability. While not denying their social problems, we argue that chengzhongcun in fact act as an innovative and positive agent to promote urbanization in present day China by housing massive numbers of rural migrants and assimilating them into cities. Current government policies towards chengzhongcun have generated a wide range of interest conflicts and confrontations. The consequences of such conflicts show that the government policies were problematic and unworkable, as they violated basic market principles as well as citizen rights. Policy strategy towards the redevelopment of chengzhongcun must acknowledge their credibility in the Chinese road to urbanization and requires more thoughtful and prudent consideration of migrants' demands for affordable housing.  相似文献   
12.
13.
In the UK, 1950-75 was a lively period in the long-running debates between proponents of absorption and marginal costing. In the nexus of competing interests, management accountants advocated and defended rival costing systems with much vigour and passion. Expressed in the language of the times, these debates were 'battles' in the costing 'war'. We focus on these battles, analysing the various forces that operated upon the combatants, and locate them in the wider costing war. We conclude that no final resolution of the conflict was achieved in the twentieth century, nor is one likely in the foreseeable future.  相似文献   
14.
The increasing popularity of public private partnerships (PPPs) thrusts on to centre stage the inherent tension between accountability and transparency on the one hand, and efficiency and commerciality on the other. This paper explores a number of accountability issues that are exacerbated by a public private partnership structure. The organisational structure of a PPP, where much of the activity associated with the delivery of a public service is embedded in a private-sector entity, increases the likelihood that public scrutiny of decisions and actions is significantly inhibited  相似文献   
15.
16.
The paper examines the relationship between transitory terms‐of‐trade shocks and private saving. Using a model allowing for nonseparability between the consumption of tradables and nontradables, the paper estimates the intertemporal elasticity of substitution while accounting for the intratemporal elasticity of substitution between the consumption of tradables and nontradables. Empirical analysis of data for five industrial countries indicates that in response to transitory terms‐of‐trade shocks, intertemporal substitution of consumption and intratemporal substitution of consumption between tradables and nontradables both have large effects on private saving.  相似文献   
17.
The American Psychological Association Task Force recommended that researchers always report and interpret effect sizes for quantitative data. However, no such recommendation was made for qualitative data. Thus, the first objective of the present paper is to provide a rationale for reporting and interpreting effect sizes in qualitative research. Arguments are presented that effect sizes enhance the process of verstehen/hermeneutics advocated by interpretive researchers. The second objective of this paper is to provide a typology of effect sizes in qualitative research. Examples are given illustrating various applications of effect sizes. For instance, when conducting typological analyses, qualitative analysts only identify emergent themes; yet, these themes can be quantitized to ascertain the hierarchical structure of emergent themes. The final objective is to illustrate how inferential statistics can be utilized in qualitative data analyses. This can be accomplished by treating words arising from individuals, or observations emerging from a particular setting, as sample units of data that represent the total number of words/observations existing from that sample member/context. Heuristic examples are provided to demonstrate how inferential statistics can be used to provide more complex levels of verstehen than is presently undertaken in qualitative research.  相似文献   
18.
19.
We consider the problem of estimating a probability density function based on data that are corrupted by noise from a uniform distribution. The (nonparametric) maximum likelihood estimator for the corresponding distribution function is well defined. For the density function this is not the case. We study two nonparametric estimators for this density. The first is a type of kernel density estimate based on the empirical distribution function of the observable data. The second is a kernel density estimate based on the MLE of the distribution function of the unobservable (uncorrupted) data.  相似文献   
20.
The broadcasting of sport is heavily regulated. Our main findingis that common trends, and differences, in the quality, quantity,and price of televised sport across Europe and USA cannot beadequately explained without reference to policy interventionsby national and supranational government, and by competitionand regulatory authorities. These interventions have a significantimpact on the organization and governance of sports, as wellas the structure of broadcasting markets and the conduct ofbroadcasting companies. Foreclosure of broadcasting marketsthrough exclusive, long-term contracts, bundling and verticalintegration, access of viewers to major sporting events, andcollective selling stand out as the most significant policyissues. We conclude by noting a number of policy implications.  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