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   2746篇
  免费   170篇
  国内免费   25篇
财政金融   238篇
工业经济   75篇
计划管理   287篇
经济学   678篇
综合类   330篇
运输经济   24篇
旅游经济   46篇
贸易经济   231篇
农业经济   404篇
经济概况   628篇
  2023年   69篇
  2022年   62篇
  2021年   92篇
  2020年   172篇
  2019年   111篇
  2018年   116篇
  2017年   109篇
  2016年   92篇
  2015年   109篇
  2014年   145篇
  2013年   277篇
  2012年   181篇
  2011年   175篇
  2010年   151篇
  2009年   156篇
  2008年   191篇
  2007年   125篇
  2006年   152篇
  2005年   94篇
  2004年   59篇
  2003年   62篇
  2002年   49篇
  2001年   35篇
  2000年   26篇
  1999年   23篇
  1998年   15篇
  1997年   9篇
  1996年   6篇
  1995年   9篇
  1994年   8篇
  1993年   2篇
  1992年   12篇
  1991年   2篇
  1990年   2篇
  1989年   8篇
  1988年   3篇
  1987年   1篇
  1986年   3篇
  1985年   6篇
  1984年   5篇
  1983年   7篇
  1982年   7篇
  1981年   3篇
排序方式: 共有2941条查询结果,搜索用时 15 毫秒
1.
The objective of this paper is to evaluate the effect of the environmental protection policies of by Cameroonian firms on their performance. It uses the endogenous switching regression technique and propensity scores applied to micro-data from 639 firms in Cameroon. The results show that only 17% of firms adopt these measures, while on average 85% of firms produce solid, gaseous or liquid waste. The results also indicate that the adoption of these environmental protection policies increases operating costs while significantly improving the turnover and the performance of the productive capacity of the company. These increases are 39.11%, 58.6%, and 38.63% for operating costs, turnover and return on productive capacity of the company, respectively. However, firms can also suffer significant losses resulting from the non-adoption of environmental policies. In fact, firms that do not adopt environmental protection policies have their performance reduced by an average of 1.625 percentage points.  相似文献   
2.
While it is often recognised that agricultural technology adoption decisions are intertwined and best characterised by multivariate models, typical approaches to examining adoption and impacts of agricultural technology have focused on single technology adoption choice and ignored interdependence among technologies. We examine farm‐ and market‐level impacts of multiple technology adoption choices using comprehensive household survey data collected in 2010/11 and 2012/13 in Ethiopia. Economic surplus analysis combined with panel data switching endogenous regression models are used to compute the supply shift parameter (K‐shift parameter), while at the same time controlling for the endogeneity inherent in agricultural technology adoption among farmers. We find that our improved technology set choices have significant impacts on farm‐level maize yield and maize production costs, where the greatest effect appears to be generated when various technologies are combined. The change in maize yield and production costs results in an average 26.4% cost reduction per kilogram of maize output (the K‐shift parameter). This increases the producer and consumer surpluses by US$ 140 and US$ 105 million per annum, respectively. These changes in economic surplus help to reduce the number of poor people by an estimated 788 thousand per year. We conclude that deliberate extension efforts and other policies that encourage integration of technologies are important for maize technologies to yield their full potential at both farm and market levels.  相似文献   
3.
本文利用全国592个国家级贫困县的数据,采用空间计量模型实证分析了普惠金融对县域资金外流的影响,并验证了贫困县资金外流是否会产生致贫效应。本文研究发现:如果普惠金融只注重解决贫困地区对金融机构的接触性排斥,会进一步加剧资金外流,对减贫产生负向影响,即存在显著的致贫效应。这种致贫效应具有明显的空间外溢性,邻近县域的贫困状况在很大程度上会彼此“传染”,并具有空间衰减特征的地理边界。因而需要客观认识普惠金融的本质,有针对性地选择恰当有效的实施载体,解决好对信贷产品等关键金融服务的使用性排斥问题。  相似文献   
4.
中国特色社会主义的伟大实践使我国告别了贫困,实现了从站起来到富起来的飞跃,坚持走中国特色社会主义道路,坚持贯彻党的基本理论、基本路线、基本方略,坚持“五位一体”总体布局,坚持“四个全面”战略布局,贯彻新发展理念,建设现代化经济体系,一定能够使我们迈过“中等收入陷阱”,实现两个百年的发展目标,进一步提升“四个自信”,为解决人类问题进一步贡献中国智慧和中国方案。  相似文献   
5.
We show that board tenure exhibits an inverted U‐shaped relation with firm value and accounting performance. The quality of corporate decisions, such as M&A, financial reporting quality, and CEO compensation, also has a quadratic relation with board tenure. Our results are consistent with the interpretation that directors’ on‐the‐job learning improves firm value up to a threshold, at which point entrenchment dominates and firm performance suffers. To address endogeneity concerns, we use a sample of firms in which an outside director suffered a sudden death, and find that sudden deaths that move board tenure away from (toward) the empirically observed optimum level in the cross‐section are associated with negative (positive) announcement returns. The quality of corporate decisions also follows an inverted U‐shaped pattern in a sample of firms affected by the death of a director.  相似文献   
6.
This article examines the welfare impact of foreign direct investment (FDI) in a panel of 20 African countries over the period 2000–2013. We explore the multifactor and nonmonetary measures of welfare and the nonlinear effect of FDI on welfare. We used the Driscoll and Kraay standard errors and augmented mean group (AMG) estimator by Eberhardt and Teal (2010) to account for cross‐sectional dependency, endogeneity, and heterogeneity within panel units. The results indicate that although FDI is welfare enhancing, the nonlinear terms report mixed findings. When a multifactor indicator is employed, the increase in the nonlinear term is lower than the linear part. However, there is strong evidence that FDI is ultimately welfare enhancing when a nonmonetary indicator is employed. From an international business perspective, the findings have unlocked the welfare effects of international business on African host economies. International businesses through FDI can enhance welfare in Africa countries. However, the optimal efficacy of FDI‐welfare impact differs across the various dimensions of welfare. © 2017 Wiley Periodicals, Inc.  相似文献   
7.
Drawing from a unique dataset of 2356 Chinese villages, this paper assesses the anti-poverty effect of the largest government-led microfinance project in the developing world. We find that the project can significantly increase the income level in the targeted villages. The main engine of the project lies in the expansion of access to nonfarm activities. We also highlight the importance of institutional circumstance in the effectiveness of the project. Specifically, a more democratized village with less political connection to local governments reaps more benefits from its participation.  相似文献   
8.
区域贫困程度测度是精准施策,打赢脱贫攻坚战的重要依据。在对已有贫困程度测度方法回顾的基础上,文章通过分析深度贫困地区的贫困特征,提出区域贫困程度测度原则,构建区域贫困程度测度指标体系,并以甘肃为例对深度贫困县贫困程度进行测算,进一步了解深度贫困县的贫困现状、集中区域、影响因素及贫困差距等,以期为地方打赢脱贫攻坚战提供借鉴。  相似文献   
9.
以福建省赤溪村农户为调研对象,运用相关性检验和二元Logistic回归模型对影响农户参与乡村旅游扶贫的因素进行研究。研究发现:农户参与乡村旅游扶贫的比例较高,但是旅游经营的项目单一;农户的学历、劳动力数量、地理位置、参与乡村旅游扶贫培训的次数对农户参与乡村旅游有显著地正向影响作用;农户生计资本和对旅游发展的感知中的权力关系、可借款能力、家庭年收入、了解乡村旅游扶贫政策、有资源用于发展乡村旅游也是影响农户参与的主要因素。在此基础上,提出了加大扶贫政策宣传力度,提高旅游扶贫政策利用程度完善旅游相关基础设施,扩大农户扶贫资金来源渠道,完善扶贫资金体系,完善旅游供给侧创新旅游经营模式,实行多项扶持的针对性建议。  相似文献   
10.
我国林业扶贫工作的主要问题及优化措施研究   总被引:2,自引:0,他引:2  
林业扶贫是当前我国扶贫工作的重要内容。通过介绍开展林业扶贫工作的政策背景、理论背景以及经济背景,分析林业扶贫工作开展过程中存在的基础设施落后、针对性差等问题,提出了因地制宜,互联网+林业扶贫,鼓励社会资本进入扶贫工作、志智双扶等应对措施。  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