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151.
目的 耕地非农化影响1.2亿hm2(18亿亩)耕地保护红线现象引起了政府和学界的高度重视,有效掌握耕地非农化演变空间特征是保护耕地的重要前提。方法 文章以广西边境3个地级市的23个县域地区为研究区,通过构建重心模型、标准差椭圆模型分析刻画1980—2018年耕地非农化速度与方向,并利用空间自相关分析其空间特征。结果 (1)1980—2018年4个时期内耕地非农化面积呈“N”型波动增长的趋势,其中2010—2018年耕地非农化面积最大,为49 367 hm2;1990—2000年耕地非农化面积最小,为5 270 hm2,耕地非农化面积高值区主要集中在城镇化水平较高的区域城市中心。(2)耕地非农化速度具有空间非均衡性,标准差椭圆面积往东南方向持续扩张,耕地非农化空间上总体由西北部往东南方向迁移,区域之间的差距逐渐扩大。(3)广西边境地区耕地非农化面积存在显著的空间正相关关系,但集聚优势逐渐下降,“高—高”聚类的空间变化主导了耕地非农化面积的空间自相关关系的格局演变。结论 研究揭示了广西边境地区耕地非农化空间格局演变过程,可为边境地区制定耕地非农化管控机制和优化国土空间结构提供参考。 相似文献
152.
153.
This paper examines stock market reaction to cross-border acquisition announcements that involve Eastern European emerging-market targets. Using a unique and a manually collected dataset, we identify 125 cross-border acquisitions in which developed-market firms from France, Germany, Netherlands, and the United Kingdom acquire ownership stakes in emerging as well as developed-markets in Europe during the period January 2000 through December 2011. In line with previous findings on foreign cross-border merger and acquisitions (M&As) in emerging-markets, evidence suggests that when the target firm is located in either the Czech-Republic, Hungary, Poland, or Russia, cumulative abnormal return (CAR) to the acquiring developed-market firm shows a statistically significant increase of 1.26% over a three day event window, following the announcement. Thereby, the relative size of the acquirer to the target appears to be the only significant factor that contributes to positive acquirer returns. The result is robust to the inclusion of controls for country, industry, as well as acquirer, target, and firm specific characteristics. Moreover, cross-border M&As involving an emerging-market target result in higher value creation for the acquiring shareholders than cross-border transactions into developed-markets. 相似文献
154.
基于边界效应模型的我国市场一体化问题研究 总被引:1,自引:0,他引:1
改革开放使我国走向市场经济道路并取得了一系列的成就,但是我国的市场一体化程度却遭到了很多质疑。许多学者从不同角度对我国市场一体化程度进行了研究,但由于研究的方法不同,得到的结果也不尽相同。本文利用Head和Mayer(2002)修正后的边界效应模型和区域间投入产出表的数据对我国市场一体化程度进行了实证研究。结果表明。我国确实存在一定程度的市场分割,特别是农业、纺织业、金属制品业和非金属矿物制品业等关系到地方就业与税收的部门市场分割比较严重。 相似文献
155.
We consider the use of border adjustments to compensate exporters for domestic environmental taxes imposed on an intermediate good. A model of successive oligopoly is used to consider the appropriate border adjustments. In this set-up, the relative importance of the forward incidence of the environmental tax and the backward incidence of the remission play a key role. The results highlight that the simple rule employed by GATT/WTO to set the export remittance equal to the level of the environmental tax is likely to be inappropriate.JEL Code: H87, Q38 相似文献
156.
人民币境外流通的收益与成本分析 总被引:1,自引:0,他引:1
马荣华 《石家庄经济学院学报》2006,29(1):57-61,68
随着中国经济的崛起,中国与亚洲经贸关系的加强以及中国在世界经济中地位的提高,将会有越来越多的人民币在境外流通。人民币境外流通是双刃剑,既会给我们带来收益,又会给我们带来成本。我们应该一方面鼓励和推动人民币的境外流通,另一方面又要采取必要的措施降低人民币境外流通带来的风险。 相似文献
157.
边境旅游是我国旅游业的一个重要组成部分,也是一种非常有潜力的旅游形式.发展凭祥边境旅游应以景区景点开发为中心,以提高服务质量为重点,调整和优化旅游区域布局和旅游产品结构,培育品牌,形成网络,大力开拓境内外客源市场,全面构建开放带动型旅游产业体系,使凭祥成为连接越南乃至东南亚各国的旅游目的地和集散地,使旅游业成为凭祥市第三产业发展的龙头. 相似文献
158.
159.
An analysis of commonality in the twin metropolitan areas of San Diego, California, and Tijuana, Mexico 总被引:1,自引:0,他引:1
A new application of spatial analysis is developed and applied to study the international twin metropolitan region of Tijuana, Mexico, and San Diego, California. Information on 16 variables from the US and Mexican censuses are merged in a common framework. A two-stage cluster analysis is applied to small area samples to determine metropolitan zones with common sets of characteristics. The results of the cluster analysis are spatially mapped and analyzed. This is done for all 16 variables, as well as for four variable groups that are determined through literature review and experience, and for an alternative set of variable groups derived from the data. The extent of commonality, defined as the similarity between socioeconomic and demographic profiles of the population in the San Diego-Tijuana region, is examined through the development of a commonality index that is determined by the extent of cluster overlap on both sides of the border. The findings are interpreted with respect to the research literature. The methods can be applied within academic research or in the planning of border cities having consistent data sets on both sides. 相似文献
160.
Krisztina Varró 《International journal of urban and regional research》2014,38(6):2235-2255
Parallel to the proliferation of cross‐border regional cooperation initiatives in the European Union, increasing scholarly attention has been given to conceptualizing cross‐border governance in recent decades. In line with the recognition that cross‐border regions have not undermined the significance of nation‐state spaces but have added to their complexity, conceptual frameworks of analysis have become more and more refined. However, studies still tend to be framed in one spatial grammar, that of territory, scale or network, and fail to consider the ways in which these different dimensions become interlocked. The aim of this article is to address this lack by developing a multidimensional perspective, in order to finally circumvent state‐centric thinking on cross‐border regions and to offer a more nuanced account of whether and how new imaginaries of spatial governance institutionalize. These arguments are demonstrated by means of a case study of cross‐border regional governance in the Dutch–German–Belgian borderlands. 相似文献