全文获取类型
收费全文 | 945篇 |
免费 | 30篇 |
国内免费 | 6篇 |
专业分类
财政金融 | 15篇 |
工业经济 | 30篇 |
计划管理 | 566篇 |
经济学 | 77篇 |
综合类 | 66篇 |
运输经济 | 20篇 |
旅游经济 | 6篇 |
贸易经济 | 109篇 |
农业经济 | 22篇 |
经济概况 | 70篇 |
出版年
2023年 | 13篇 |
2022年 | 19篇 |
2021年 | 21篇 |
2020年 | 33篇 |
2019年 | 23篇 |
2018年 | 17篇 |
2017年 | 27篇 |
2016年 | 22篇 |
2015年 | 43篇 |
2014年 | 96篇 |
2013年 | 89篇 |
2012年 | 86篇 |
2011年 | 128篇 |
2010年 | 129篇 |
2009年 | 55篇 |
2008年 | 53篇 |
2007年 | 30篇 |
2006年 | 36篇 |
2005年 | 15篇 |
2004年 | 12篇 |
2003年 | 8篇 |
2002年 | 4篇 |
2001年 | 6篇 |
2000年 | 4篇 |
1999年 | 3篇 |
1998年 | 1篇 |
1997年 | 1篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1985年 | 1篇 |
排序方式: 共有981条查询结果,搜索用时 15 毫秒
1.
2.
Christian Ezeibe Chukwudi Ilo Chika Oguonu Alphonsus Ali Ifeanyi Abada Ezinwanne Ezeibe 《International journal of injury control and safety promotion》2019,26(1):3-11
This study assesses the impact of traffic sign deficit on road traffic accidents in Nigeria. The participants were 720 commercial vehicle drivers. While simple random sampling was used to select 6 out of 137 federal highways, stratified random sampling was used to select six categories of commercial vehicle drivers. The study used qual-dominant mixed methods approach comprising key informant interviews; group interviews; field observation; policy appraisal and secondary literature on traffic signs. Result shows that the failure of government to provide and maintain traffic signs in order to guide road users through the numerous accident black spots on the highways is the major cause of road accidents in Nigeria. The study argues that provision and maintenance of traffic signs present opportunity to promoting safety on the highways and achieving the sustainable development goals. 相似文献
3.
The objective of this article is to summarize and review the literature on the determinants of road traffic injuries and fatalities, to identify the relevant research gaps in particular for low and middle income countries. We also present a cross-country analysis of the determinants of road traffic injuries and fatalities that take into account a wide range of potential environmental, economic and social factors. The present study focused on differences based on the level of development. The goal was to identify relevant commonalities that may assist in the creation of road safety policies common to countries at a similar level of development. The countries were divided according to the level of gross national income per capita, and these income-level groups were the primary units of interest. The results presented here focus on the differences by income level. 相似文献
4.
The One Belt One Road (OBOR) project is perhaps China's most significant international relations initiative in recent times. It is based on openness, harmony, inclusivity, mutual benefit and market operations and aims to connect the economically vibrant East Asia and the developed Europe by land and by sea, and in the process, it brings growth and development to tens of countries along the modern Silk routes. In this paper, we compare the impact of the main initiatives of OBOR, namely enhancements in physical infrastructure and improvements in border administration, on the trade of countries that have signed on to this project, especially countries along the six economic corridors. We find overwhelming evidence that shows improvements in border administration has the greatest impact on exports of corridor countries. Although physical infrastructure is important for trade, the Chinese government should place equal attention to improvements in trade facilitation to ensure trade routes operate seamlessly across the various corridors. 相似文献
5.
周文 《首都经济贸易大学学报》2019,(5):3-12
基于中国11个集中连片贫困地区所涉及的87个地级市的动态面板数据,利用系统广义矩估计法克服内生性问题,可对不同交通运输方式在贫困地区的经济发展效应进行实证研究。研究发现,交通运输发展对贫困地区经济发展总体上起到了正向的促进作用,但不同交通运输方式在不同地区存在明显的差异。公路运输的发展在西南贫困地区和中部贫困地区的促进效果比在西北地区好。航空运输对中部贫困地区和西北贫困地区的经济发展同样起着显著的促进作用。普通铁路则因为在贫困地区的发展优势不明显,对经济发展的促进作用没有很好地发挥出来。 相似文献
6.
《消防应急照明和疏散指示系统技术标准》(GB 51309—2018)的实施,结束了消防应急照明不统一的乱象,在设计工作中得到广泛应用。本文针对散粮筒仓系统中消防应急灯具的选择进行了分析。 相似文献
7.
协调好对外开放和对内开放的关系,是贯彻新发展理念、建设现代化经济体系的题中之义。对外开放与对内开放的协同机制,是从区域空间布局和区域产业结构两个层面展开的。文章梳理了党的十八大以来实施的区域协调发展战略,结合以“一带一路”倡议为引领的对外开放战略,对产业全球化资源配置活动进行了分析,把区域空间布局调整与产业结构跨国调整贯通起来,刻画了对外开放与对内开放协同的内在机理。从区域协同机制来看,要建设基础条件好的开发区、自贸区、经济带,作为对外开放和对内开放协同发展的重要载体,东、中、西部地区应配合对外开放的整体布局有意识地进行梯度开放。从产业协同机制来看,对于不同类型的产业应分别采取资源占优型协同合作机制、成本占优型协同合作机制、要素融合型协同合作机制、创新引领型协同合作机制。 相似文献
8.
了解一个城市群内各县(市)区的活跃度可以为该城市群服务设施的配置及等级结构的优化提供依据。基于环长株潭城市群夜间灯光数据、客流量数据以及新浪微博签到数据,利用数理统计分析,对环长株潭城市群内64个县(市)区的活跃度进行测度,并对经济活跃度和人口活跃度的组合状况进行分类分析。结果显示:长沙市内五区的活跃度居前五位,而距离各中心城区较远的县市区活跃度较低,总体上呈中心-外围的圈层分布,且具有沿轴向扩展与多极点并存的空间分布格局;核心区的经济活跃度与人口活跃度基本一致,而外围区则不一致;从经济活跃度和人口活跃度的组合关系来看,表现出高-高、高-低、低-高及低-低等4种类型。 相似文献
9.
10.
Though Chinese multinational enterprises (CMNEs) have brought investment and opportunities to countries along the Belt and Road Initiative, there has been scepticism regarding the content and context of their investment. On the one hand, infrastructural development contributes to GDP formation and enhances the efficiency of productive inputs where international trade enhances technology and export development, which jointly provides a path to economic growth. On the other hand, critical issues such as debt sustainability and national sovereignty among countries that have gone through the decolonization process mean that CMNEs need to grasp the implication of political risk when investing. This article focuses on South and Southeast Asia, where China has historical socio‐economic relationship, and proposes a nation branding model combining tradition and modernity which can be the way forward for CMNEs to mitigate political risk in relation to the Belt and Road Initiative (BRI) investment. Nation branding of BRI could be seen as a continuity of China's unfinished business in globalization that has preceded the modern polity; nevertheless, there is a need to communicate a coherent and authentic message that reflects the reality of business operations. 相似文献