全文获取类型
收费全文 | 94690篇 |
免费 | 3232篇 |
国内免费 | 1602篇 |
专业分类
财政金融 | 6578篇 |
工业经济 | 3910篇 |
计划管理 | 25100篇 |
经济学 | 14520篇 |
综合类 | 16710篇 |
运输经济 | 689篇 |
旅游经济 | 1242篇 |
贸易经济 | 12397篇 |
农业经济 | 7142篇 |
经济概况 | 11233篇 |
信息产业经济 | 3篇 |
出版年
2024年 | 178篇 |
2023年 | 816篇 |
2022年 | 1164篇 |
2021年 | 1780篇 |
2020年 | 2163篇 |
2019年 | 1352篇 |
2018年 | 1244篇 |
2017年 | 1471篇 |
2016年 | 1678篇 |
2015年 | 2298篇 |
2014年 | 6025篇 |
2013年 | 6214篇 |
2012年 | 7890篇 |
2011年 | 10175篇 |
2010年 | 7493篇 |
2009年 | 6512篇 |
2008年 | 7889篇 |
2007年 | 7340篇 |
2006年 | 6853篇 |
2005年 | 5200篇 |
2004年 | 3715篇 |
2003年 | 2783篇 |
2002年 | 1844篇 |
2001年 | 1601篇 |
2000年 | 1088篇 |
1999年 | 572篇 |
1998年 | 277篇 |
1997年 | 267篇 |
1996年 | 196篇 |
1995年 | 133篇 |
1994年 | 96篇 |
1993年 | 108篇 |
1992年 | 78篇 |
1991年 | 47篇 |
1990年 | 46篇 |
1989年 | 31篇 |
1988年 | 20篇 |
1987年 | 16篇 |
1986年 | 13篇 |
1985年 | 179篇 |
1984年 | 198篇 |
1983年 | 141篇 |
1982年 | 99篇 |
1981年 | 57篇 |
1980年 | 74篇 |
1979年 | 48篇 |
1978年 | 36篇 |
1977年 | 23篇 |
1975年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 265 毫秒
81.
82.
乡镇企业与小城镇良性互动的对策思考 总被引:3,自引:0,他引:3
发展乡镇企业和小城镇,是中国解决农业、农村、农民问题的两个重大战略和根本方针,而二者又是互相影响、相互制约的。它们的协调发展对发展农业、富裕农民、繁荣农村、实现国民经济的快速健康发展具有重要意义。应坚持保护农业和农民利益、市场化、法制化等原则,从宏观和微观方面采取得力措施,实现二者的良性互动。 相似文献
83.
供应链核心在于实现供应链环节中的信息沟通,数据互换和协同工作,改造和整合企业的业务流程,因此供应链系统模型应该具有动态可重构的特点,系统主体的构成也应反映这种思想,在系统中引入“大规模定制”,“工作流”的新思想和“异构系统兼容”,“通用报表”以及“三层架构应用体系及开发手段”等新技术将使供应链系统更为“敏捷”。 相似文献
84.
85.
This paper addresses a simple question: why do people vote? Though simple, this question remains unanswered despite the considerable attention it has received. In this paper, I show that purely rational–instrumental factors explain a large fraction of turnout variations, provided that the effect of the margin of victory on implemented policy is considered. I extend Myerson's models of elections based on Poisson games, and show that, when platforms are responsive to vote shares, the predictions of the model become consistent with several stylized facts, including the secular fall in turnout rates in the US. 相似文献
86.
The effects of unit non-response on survey errors are of great concern to researchers.However, direct assessment of non-response bias in survey estimates is rarely possible.Attempts are often made to adjust for the effects of non-response by weighting, but thisusually relies on the use of frame data or external population data, which are at bestmodestly correlated with the survey variables. This paper reports the development ofa method to collect limited survey data from non-respondents to personal interviewsurveys and a large-scale field test of the method on the British Crime Survey (BCS).The method is shown to be acceptable and low cost, to provide valid data, and to haveno detrimental effect on the main survey. The use of the resultant data to estimatenon-response bias is illustrated and some substantive conclusions are drawn for the BCS. 相似文献
87.
建筑工程资格预审无论对业主还是对承包商都至关重要,根据建筑工程的特点,在目前普遍采用的资格预审评价方法的基础之上,总结了进行资格预审的评价指标体系,并提出了基于模糊数学意见集中排序法的建筑工程资格预审方法。 相似文献
88.
我国自然垄断产业的民营化改革 总被引:1,自引:0,他引:1
在自然垄断产业,国有企业垄断经营低效是一个世界性的问题。自然垄断产业在一定范围内具有可竞争性,即使是在不可竞争性的领域,也可以通过建立潜在的竞争性替代机制,形成模拟竞争环境。自然垄断产业的可竞争性为民营化提供了可能。自然垄断产业民营化就是通过产权制度变革,提高垄断企业的效率。 相似文献
89.
FDI facilitated by agglomeration economies: evidence from manufacturing and services joint ventures in China 总被引:4,自引:0,他引:4
The open door policy of China’s economic reform since the 1980s has attracted heavy foreign direct investment (FDI) flows into China and especially to Guangdong (particularly the Pearl River Delta region, PRD) and induced significant economic growth during the past two decades. While there exist various classical theories of FDI in attempting to identify the determinants of FDI inflow and to explain the behavior of FDI flows, limited attention has been given from the perspective of agglomeration effects generated by a core-periphery (CP) relation.This paper intends to study the impacts of agglomerations on FDI inflows in the context of Krugman’s CP relation (1991) by investigating (1) the formation of a CP relation via gravity model analysis; (2) whether different types of industry FDI flows will respond differently in the CP-system, given agglomeration effects; and (3) whether FDI origin and firm scale matter in affecting FDI flows.A database consisting of a population frame of 37,742 firm-level manufacturing and services joint ventures investing in Guangdong in 1998 was used. Empirical results show that the agglomerations of the CP relation have affected FDI flow patterns. While both manufacturing and services FDI and sources of investment responded differently to the impacts, smaller firms were found more responsive to the CP-agglomeration settings regardless of FDI by industry type and by source. The significance and implications of the CP-system to further facilitate FDI in the region are discussed. 相似文献
90.
Calvyn Potgieter 《International Journal of Technology and Design Education》2004,14(3):205-218
In this article the impact of technology education, as a new learning area (subject) in the curriculum, on in-service teacher
education in South Africa is described in order to ascertain the extent of the impact. The research on which this article
is based draws on a variety of experiences and observations in the field at grassroots level (in particular an outreach project
in rural communities). The envisaged impact of technology education on South African schools, communities, teacher educators
and teachers, the range of in-service teacher education that is required, and the impacts in urban and rural areas are discussed.
Finally a number of concluding remarks are made about the extent of the impact of the inclusion of technology education in
the new National Curriculum Statement and whether the situation has changed since the implementation of a pilot technology
education project in 1998.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献