全文获取类型
收费全文 | 2492篇 |
免费 | 18篇 |
国内免费 | 10篇 |
专业分类
财政金融 | 292篇 |
工业经济 | 90篇 |
计划管理 | 431篇 |
经济学 | 804篇 |
综合类 | 303篇 |
运输经济 | 12篇 |
旅游经济 | 21篇 |
贸易经济 | 195篇 |
农业经济 | 30篇 |
经济概况 | 342篇 |
出版年
2024年 | 1篇 |
2023年 | 25篇 |
2022年 | 60篇 |
2021年 | 70篇 |
2020年 | 101篇 |
2019年 | 81篇 |
2018年 | 61篇 |
2017年 | 77篇 |
2016年 | 62篇 |
2015年 | 62篇 |
2014年 | 111篇 |
2013年 | 136篇 |
2012年 | 178篇 |
2011年 | 242篇 |
2010年 | 158篇 |
2009年 | 163篇 |
2008年 | 204篇 |
2007年 | 178篇 |
2006年 | 153篇 |
2005年 | 93篇 |
2004年 | 63篇 |
2003年 | 68篇 |
2002年 | 51篇 |
2001年 | 47篇 |
2000年 | 14篇 |
1999年 | 13篇 |
1998年 | 10篇 |
1997年 | 5篇 |
1996年 | 11篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1991年 | 3篇 |
1985年 | 3篇 |
1984年 | 5篇 |
1983年 | 2篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有2520条查询结果,搜索用时 15 毫秒
991.
992.
《The Scandinavian journal of economics》2018,120(1):296-325
Students in Brazil are typically assigned to classes based on the age ranking in their cohort. I exploit this rule to estimate how fifth‐grade students’ achievement in mathematics is affected when they are in classes with older peers. I find that being assigned to the older class leads to a drop in maths scores of about 0.4 of a standard deviation for students at the cut‐off. I provide evidence that heterogeneity in age is an important factor behind this effect. Information on teaching practices and student behaviour sheds light on how class heterogeneity harms learning. 相似文献
993.
994.
John D. Sterman 《Technological Forecasting and Social Change》1985,28(2):93-122
Modern theories of science emphasize scientific revolutions rather than the traditional cumulative view of scientific progress. Thomas Kuhn, in particular, has formulated a theory of science based on the lifecycle of paradigms. Though Kuhn's theory is attractive, no calculus is offered by which the theory can be tested. This study tests the dynamic consistency of Kuhn's theory by formalizing the theory and testing it with a computer simulation model. The model plays the roles of the actors, tracing out the consequences of their day-to-day actions. Sensitivity tests are used to explore the importance of various hypotheses. Results show the theory to be dynamically consistent: The lifecycle of paradigms described by Kuhn can be accounted for by Kuhn's theory. Kuhn's theory thus passes a test to which few other theories of science have been subjected. The study shows how modeling can provide a method for testing theories even when those theories are stated entirely in qualitative terms, at a high level of abstraction, and in a context divorced from explicit dynamic analysis. 相似文献
995.
谢畅 《吉林省经济管理干部学院学报》2001,15(6):16-17
党的十四届三中全会通过的《关于建立社会主义市场经济若干问题的决定》,是我国进行经济体制改革的纲领。现代法人的典型组织形式是公司制。建立现代企业制度的重要一环,就是建立现代企业的治理结构。 相似文献
996.
997.
本文分析了我国饲料行业发展的经验教训,探讨了加入WTO后面临的机遇、挑战及其应对策略。与此同时,还回顾了通威集团的成长历程,介绍了通威集团的经营策略和管理机制。 相似文献
998.
Inge S. Helland 《Revue internationale de statistique》2004,72(3):409-422
We explore the consequences of adjoining a symmetry group to a statistical model. Group actions are first induced on the sample space, and then on the parameter space. It is argued that the right invariant measure induced by the group on the parameter space is a natural non-informative prior for the parameters of the model. The permissible sub-parameters are introduced, i.e., the subparameters upon which group actions can be defined. Equivariant estimators are similarly defined. Orbits of the group are defined on the sample space and on the parameter space; in particular the group action is called transitive when there is only one orbit. Credibility sets and confidence sets are shown (under right invariant prior and assuming transitivity on the parameter space) to be equal when defined by permissible sub-parameters and constructed from equivariant estimators. The effect of different choices of transformation group is illustrated by examples, and properties of the orbits on the sample space and on the parameter space are discussed. It is argued that model reduction should be constrained to one or several orbits of the group. Using this and other natural criteria and concepts, among them concepts related to design of experiments under symmetry, leads to links towards chemometrical prediction methods and towards the foundation of quantum theory. 相似文献
999.
论国有企业产权制度改革 总被引:3,自引:0,他引:3
王守祯 《山西经济管理干部学院学报》2002,10(4):5-8
面对WTO的挑战,我国国有企业市场竞争力还不够强。本就国有企业产权制度改革的有关问题作了些探讨和论述,并结合江泽民同志在十六大报告中提出的改革精神,提出了有实效性的可操作性建议。 相似文献
1000.
本文论述了石油企业在开拓国内外市场的过程中,必须重视标准化信息。指出,标准化化信息咨询服务机构应以提高石油企业开拓市场的能力为中心,从馆藏结构、咨询服务、网络建设、队伍建设四个方面改进工作,提高信息服务水平。 相似文献