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991.
上市公司盈利能力的均值回归性研究 总被引:1,自引:0,他引:1
根据微观经济学理论,市场竞争和新的市场进入者会驱使各行业的盈利能力回归到同一个平均水平,同时由于行业结构的差异,盈利能力的组成部分并不是向同一均值回归,对于这些组成部分应以行业均值作为长期目标。 相似文献
992.
旅游景区空间容量控制方法新探 总被引:1,自引:0,他引:1
现行旅游景区容量的计算和控制方法未考虑不同时刻游客在各景点间分布的不均衡,从而导致了景区容量控制指标的不合理估计,造成了对“热点”处资源、环境等的破坏.为解决这一问题,提出了一种旅游景区容量控制的新方法:热点控制法.通过从保护“热点”出发,确定出一个更为合理的容量指标,保证高峰时刻“热点”不超载,并且以一个动态发展的过程,在保护景区资源的基础上,对景区进行更深层次的挖掘,使其容量得到科学地提高,为景区容量的控制与管理提供了一种新的思路. 相似文献
993.
陆岷峰 《长春金融高等专科学校学报》2020,(3):5-13
金融治理能力现代化是国家治理能力现代化的重要构件之一,金融体制决定着金融治理能力现代化的程度与前行的步代。商业银行是金融体系的主体部分,其提升治理能力现代化的决策、机构、手段等体制的改革与深化,对金融治理能力现代化具有同样的示范、推广与指导意义,也为提升国家治理能力现代化寻找新路径提供了新的空间。 相似文献
994.
Shufang Deng 《现代会计与审计》2006,2(6):1-6
In this study, we discuss the financial constraints and the behavior of local governments. We expect that governments in relative wealthy region will act as a helping hand for companies trader its control on average, while those in relative poor region will be a grabbing hand. By dividing local governments into 3 categories according to its GDP per capita and Fiscal Revenue per capita, we test the relationship between government attributes and the long-term performance of listed companies in corporate control market. We find that target companies who are later controlled by the wealthiest government achieve better performance, while those who were later controlled by the poorest governments also achieve significant better long-term performance. 相似文献
995.
A framework for modelling economy-environment-development relationships based on dynamic carrying capacity and sustainable development feedback 总被引:2,自引:0,他引:2
Jeroen C. J. M. Van Den Bergh 《Environmental and Resource Economics》1993,3(4):395-412
A large literature exists that deals with economic issues of development and growth. It includes various approaches that can be classified as formal-theoretical, empirical-statistical and qualitative-verbal. Recently, the issue of sustainable development has been discussed much, which has given rise to some novel views on the relationship between development and environment. Most of these contributions utilize a more or less qualitative approach. A comprehensive inquiry of the relationship between economy, development, growth and environment may include an analytical approach as well. An analytical framework is proposed here for studies of environment-economy-development relationships that separates between economy, development, environment, and value system. A distinction is made between direct and indirect economy-environment interactions. To overcome disadvantages of assumptions of determinism in long term analysis a sustainable development feedback mechanism is proposed. It reflects anticipative behaviour to natural environmental changes in making long term decisions. This can be seen as a specific element of endogenous growth, namely one based on environmental factors. To illustrate the ideas a number of theoretical models are discussed that can be regarded as dynamic formal extensions of the concept of carrying capacity. Different cases include combinations of internal and external feedback mechanisms to an economy. The results demonstrate that in addition to behaviourial patterns that have been obtained by more complex studies other patterns may emerge.This study was supported by the Economic Research Foundation (Ecozoek), which resorts under the Netherlands Organization for Scientific Research (N.W.O.), project no. 450-230-007.This paper is based on reprocessed material from my Ph.D. dissertation. I am grateful to my thesis supervisors Peter Nijkamp and Hans Opschoor for comments at various stages in the research. 相似文献
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Carolyn Fischer Cees Withagen Michael Toman 《Environmental and Resource Economics》2004,28(3):325-345
For the mitigation of long-term pollution threats, one must consider that both the process of environmental degradation and the switchover to new and cleaner technologies are dynamic. We develop a model of a uniform good that can be produced by either a polluting technology or a clean one; the latter is more expensive and requires investment in capacity. We derive the socially optimal pollution stock accumulation and creation of nonpolluting production capacity, weighing the tradeoffs among consumption, investment and djustment costs, and environmental damages. We consider the effects of changes in the pollution decay rate, the capacity depreciation rate, and the initial state of the environment on both the steady state and the transition period. The optimal transition path looks quite different with a clean or dirty initial environment. With the former, investment is slow and the price of pollution may overshoot the long-run optimum before converging. With the latter, capacity may overshoot. 相似文献
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1000.
2020年,突如其来的新型冠状肺炎疫情席卷全球,世界经济遭受重创,我国拥有14亿人口,保证粮食安全是国之策略,黑龙江省作为我国粮食主产区,肩负着时代重任,在“双循环”新发展格局下,提升黑龙江省粮食综合生产能力意义重大。黑龙江省应坚持贯彻粮食安全新战略、坚持贯彻体制机制与科技创新的“双轮驱动”战略等战略举措,继续实施农业供给侧结构性改革、加强粮食基础设施建设、提升粮食全要素生产水平等提升粮食生产能力的路径选择,以及创新粮食生产企业对外投资新思路、大力培育和扶持大型粮食生产加工企业、加大境外粮食生产投资与合作的激励政策等。 相似文献