全文获取类型
收费全文 | 609篇 |
免费 | 25篇 |
国内免费 | 4篇 |
专业分类
财政金融 | 8篇 |
工业经济 | 7篇 |
计划管理 | 68篇 |
经济学 | 180篇 |
综合类 | 51篇 |
运输经济 | 2篇 |
旅游经济 | 19篇 |
贸易经济 | 13篇 |
农业经济 | 219篇 |
经济概况 | 71篇 |
出版年
2023年 | 6篇 |
2022年 | 18篇 |
2021年 | 16篇 |
2020年 | 27篇 |
2019年 | 15篇 |
2018年 | 13篇 |
2017年 | 8篇 |
2016年 | 15篇 |
2015年 | 18篇 |
2014年 | 33篇 |
2013年 | 31篇 |
2012年 | 54篇 |
2011年 | 77篇 |
2010年 | 38篇 |
2009年 | 41篇 |
2008年 | 46篇 |
2007年 | 30篇 |
2006年 | 33篇 |
2005年 | 31篇 |
2004年 | 17篇 |
2003年 | 13篇 |
2002年 | 17篇 |
2001年 | 13篇 |
2000年 | 8篇 |
1999年 | 2篇 |
1998年 | 3篇 |
1996年 | 1篇 |
1994年 | 2篇 |
1993年 | 5篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1980年 | 2篇 |
1979年 | 1篇 |
排序方式: 共有638条查询结果,搜索用时 15 毫秒
61.
在全球区域经济一体化、多元化发展及可持续发展的总趋势下,如何整体开发界河流域旅游资源,以促进各个国家旅游业的发展,维护流域生态系统,不仅成为区域国际合作的主题之一,也成为各个国家关注的焦点和研究的主题。为此以"点一轴系统理论"为指导,构建以鸭绿江水旅游环境容量为前提,以鸭绿江地缘文化为主线,以丹东、集安和长白县为增长极的跨国旅游为辅轴的"系统网络"整体开发模式,旨在实现鸭绿江流域旅游业可持续发展。 相似文献
62.
京津冀协同创新是党中央提出的区域发展的新战略思想。这一战略构想是有其科学基础的,最重要的就是系统论的分支协同论。根据协同论,京津冀区域协同创新首先要解决地域系统最不稳定的因素——严重缺水、重度污染、经常断流的海河问题。系统分析京津冀在海河流域协同创新的木桶短板——水资源短缺这一"令人揪心的问题",利用京津冀各方比较优势协调不同诉求,使地区水资源配置达到有序动平衡,共同修复海河水生态系统。 相似文献
63.
64.
M. Ryan Haley Marianne F. Johnson M. Kevin McGee 《The Journal of economic education》2013,44(2):95-109
The Lake Wobegon Effect (LWE) describes the potential measurement-error bias introduced into survey-based analyses of education issues. Although this effect potentially applies to any student-report variable, the systematic overreporting of academic achievements such as grade point average is often of preeminent concern. This concern can be easily circumvented if official records data are available; however, many researchers can only access student-reported data. In this article, the authors examine whether using student-survey data in place of official records data meaningfully biases regression estimates. They motivate their contribution by noting a useful statistical feature of overreporting on bounded variables such as grade point average. Specifically, the misreports will be negatively correlated with the true grade point average, yielding a form of nonclassical measurement error that actually counteracts the bias. The authors connect this observation to reliability ratios used in labor economics, which are simple ways to adjust for attenuation bias, when needed. In two applications, we find that it is unnecessary to correct for the LWE bias because it is so small. 相似文献
65.
MATILDE ADDUCI 《Journal of Agrarian Change》2009,9(4):484-511
Since the beginning of the 1990s, Chilika Lake, situated on the coast of the Indian state of Orissa, has been the scene of a conflict over intensive aquaculture practices, culminating in a process of de facto privatization of the lake. This conflict can be divided into two distinct phases that have seen the involvement from village to state level of different actors: in particular the traditional fishing people and the dominant classes in Orissa. This article analyzes the socio-economic dynamics governing the conflict. The specific aim is to investigate the dynamics of class reproduction, new forms of class oppression and the emergence of new forms of class consciousness related to the transformations caused by the new aquaculture practices. The role of class in India today is discussed and related to a fieldwork-based analysis of the two phases of this movement against intensive aquaculture. 相似文献
66.
67.
随着发达地区生产要素成本的上升,传统产业从发达地区向欠发达地区转移的趋势日益突出。鄱阳湖生态经济区作为江西的核心区域,是江西承接东部加工贸易梯度转移的重要移入区。文章分析了鄱阳湖生态经济区承接加工贸易转移的优势(S)、劣势(W)、机遇(O)以及挑战(T),为该地区更好地吸引产业转移,充分利用产业转移带来的资金、技术、人才提出了相关建议。 相似文献
68.
鄱阳湖是我国最大的淡水湖,水旱灾害频繁发生,大量研究表明,实施控湖工程是减免长江中下游鄱阳湖地区水旱灾的治本之策。经过实地调查研究后,笔者认为,控湖后环鄱阳湖生态旅游格局应是一个以庐山为龙头,以星子县为中心,以沿湖各县(区)为多个次级核心区而组成的链状旅游格局,永修县应重点打造科普生态旅游品牌,湖口县打造山水文化生态旅游品牌,星子县打造生态休闲旅游品牌,并要坚持大旅游理念、编制生态旅游规划、调整生态旅游产业结构、完善生态旅游产品体系和创新生态旅游产品开发模式的基本对策。 相似文献
69.
Jiang Dongmei Wang Xiyuan Liu Minghui Lu Genfa 《生态经济(英文版)》2006,2(3):270-280
The water body of Taihu Lake has been eutrophicated because of area-source pollution. 83% of the total nitrogen and 84% of the total phosphorus of the pollutant that have washed into Taihu Lake originated from the fertilizer of crop land, rural animal husbandry and living sewage and rubbish in rural area. The goal of adjusting agricultural structure is to improve agricultural development, and to increase the peasants' income by planting non-grain crop, centralizing animal husbandry, and intensifying aquaculture, etc. It is necessary to research on the influences of agriculture industrial structure on area-source pollution. This paper studies a case of Dapu Town in Yixing City, which is a typical drainage place beside Taihu Lake. On the basis of the analysis on the status quo of area-source pollution and agriculture industrial structure in Dapu Town, the conflicts between them are discussed. Non-grain crop production with a great deal of fertilizer and developing aquaculture with a great deal of organic pollutant, which are directly discharged, make area-source pollution more serious and accelerate the eutrophication in Taihu Lake. This paper suggests taking corresponding technological measures and policies, which have been tested in Dapu Town and demonstrated in Taih, Lake area. 相似文献
70.
Import demand functions for origin-specific chilled fish filletsto the EU using a Rotterdam-type production model are estimated.Results are used to project the impact of the EU expanding marketaccess to non-African countries. The preference erosion argumentsuggests that the lower tariffs will erode the competitive positionof African countries; however, when the total impact of pricesis considered, expanding preferential access may result in increasedimports from African countries. If tariffs are reduced to zero,the total EU imports are projected to increase by 4.1 per centresulting in a 2.2 per cent increase in chilled fillet importsfrom Lake Victoria. 相似文献