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   1289篇
  免费   99篇
  国内免费   4篇
财政金融   137篇
工业经济   52篇
计划管理   198篇
经济学   471篇
综合类   63篇
运输经济   5篇
旅游经济   13篇
贸易经济   138篇
农业经济   106篇
经济概况   209篇
  2024年   2篇
  2023年   12篇
  2022年   9篇
  2021年   25篇
  2020年   55篇
  2019年   53篇
  2018年   32篇
  2017年   40篇
  2016年   38篇
  2015年   53篇
  2014年   99篇
  2013年   123篇
  2012年   104篇
  2011年   152篇
  2010年   96篇
  2009年   94篇
  2008年   83篇
  2007年   59篇
  2006年   58篇
  2005年   55篇
  2004年   15篇
  2003年   17篇
  2002年   15篇
  2001年   6篇
  2000年   9篇
  1999年   11篇
  1998年   3篇
  1997年   5篇
  1996年   1篇
  1995年   1篇
  1994年   4篇
  1993年   1篇
  1990年   1篇
  1985年   11篇
  1984年   17篇
  1983年   9篇
  1982年   6篇
  1981年   4篇
  1980年   4篇
  1979年   6篇
  1978年   4篇
排序方式: 共有1392条查询结果,搜索用时 15 毫秒
41.
随着科技投入的加大,R&D投入也越来越被人们所重视。R&D投入不仅对所在区域科技与经济发展具有重要作用,而且对整个国家的科技与经济发展都具有推动作用。本文运用北京2001~2011年R&D经费投入与经济增长的有关数据变量进行灰色关联分析,并根据不同结构建立了相应模型,揭示了北京R&D经费投入与经济增长的关系。  相似文献   
42.
We compare the prioritized projects of the Master Plan on ASEAN Connectivity (MPAC) and the Comprehensive Asia Development Plan (CADP) by utilizing the Institute of Developing Economies/Economic Research Institute for ASEAN and East Asia Geographical Simulation Model. The prioritized projects of the MPAC mainly focus on specific hard or soft infrastructure projects connecting one remote area of an ASEAN member state to another and thus fail to capture the full potential of the infrastructure because of neglected important links within a state. On the other hand, the CADP emphasizes the importance of economic corridors or linkages between a large cluster and another cluster. Our simulation analysis shows that CADP projects will result in an addition to gross domestic product (GDP) of $US 1544bn over the period from 2021 to 2030 (in 2010 dollars) or an impact on ASEAN countries that is 12 times larger than MPAC projects. The results strongly suggest that the CADP projects should be adopted and implemented to fully realize the potential economic growth of the ASEAN countries. Moreover, the CADP will contribute more to narrowing the development gaps among the ASEAN countries than MPAC prioritized projects.  相似文献   
43.
俞涔 《江苏商论》2014,(12):68-70
近年来,浙江吸收的跨国投资在促进产业结构升级、推动经济增长方式转型方面具有独特的优势。本文综合运用相关理论,通过实证研究,对跨国公司研发投资的技术外溢效应进行了实证分析。本文创新点在于,外溢效应的大小,更多地取决于本土企业竞争力的强弱,只有不断增强本地企业的技术创新能力,才能吸收跨国企业的技术外溢效应。  相似文献   
44.
45.
This paper analyses the effect of a housing allowance programme on the rent paid by assisted low‐income households. The data consist of 12,000 rental households in the free‐market and municipal sectors. The effect is estimated using the programme reform of 2002 as an instrument. The reform increased the allowance of the assisted households depending on housing characteristics, but it had little effect on the eligibility. Results suggest that in the private sector, one additional euro of allowance increases the rent of claimants by 60–70 cents. The effect is zero in the municipal sector, as rents are tied to the housing costs.  相似文献   
46.
This paper characterizes the socioeconomic determinants of child health using height‐for‐age z‐score (HAZ), a long‐run measure of chronic nutritional deficiency. We construct a panel data that follows children between ages 3 and 59 months in 1993 through the 1997 and 2000 waves of the Indonesian Family Life Survey. We use this data to identify the various child‐level, household‐level and community‐level factors that affect children's health. Our findings indicate that household income has a large and statistically significant role in explaining improvements in HAZ. We also find a strong positive association between parental height and HAZ. At the community level, we find that provision of electricity and the availability of paved roads are positively associated with improvements in HAZ. Finally, in comparison to community‐level factors, household‐level characteristics play a large role in explaining the variation in HAZ. These findings suggest that policies that address the demand‐side constraints have greater potential to improve children's health outcomes in the future.  相似文献   
47.
Federally regulated or insured lenders in the United States are mandated to require flood insurance on properties that are located in areas at high risk of flooding. Despite the existence of this mandatory flood insurance requirement, take‐up rates for flood insurance have been low, and the federal government's exposure to uninsured property losses from flooding remains substantial. Meanwhile, the value of capital at risk varies significantly with flood events and changing risk perceptions, which necessitates mechanisms that stabilize these dynamics. In this article we discuss how a scenario of complete insurance uptake, under various risk attitudes, affects the value of properties in the 100‐year and 500‐year flood zones. Our results indicate that an increase in flood insurance uptake may provide such a mechanism by lowering the value of capital at risk in the flood zone consistently, independent of homeowners' risk attitudes. We apply an empirical adaptive agent‐based model to examine the capitalization of insurance costs, risk premiums, and their interaction in housing prices. Our approach combines widely‐used empirical hedonic analysis with the computational economic framework. We highlight the usefulness of our method in capturing the marginal implicit price of homeowners' preferences that may change over time and separately assess the effect of various factors and policies on property values, illustrating the agent‐based modeling as a valuable complement to traditional hedonic analysis.  相似文献   
48.
The National Flood Insurance Program was created to seek two often conflicting goals: (i) shifting risks from federal taxpayers to those who choose to live in flood plains and (ii) ensuring flood insurance is available to everyone at “reasonable” rates. Efforts to accomplish the second goal currently take the form of subsidies based on location and the date a home was constructed. The resulting revenue from subsidized insurance premiums is not sufficient to cover the true cost of flood insurance, and federal taxpayers have paid the difference: $30 billion to date. Based on a detailed survey of households in the high‐risk flood zones of New York City (NYC), we find that replacing existing premium subsidies with risk‐based prices and a subsidy for low‐income housing‐burdened households could better meet both goals by ensuring low‐income individuals have access to affordable flood insurance while still saving the federal taxpayer up to $183 million per year in NYC alone.  相似文献   
49.
朱承亮  王珺 《技术经济》2022,41(1):24-32
企业是开展创新活动的重要主体,加强企业研发经费投入对提升企业技术创新能力至关重要。本文基于《欧盟产业研发投资记分牌(2019)》和调研数据,从研发经费投入及结构视角分析了我国企业创新活动现状,并与世界主要创新型国家进行了国际比较分析。研究发现:我国企业研发经费投入规模不断扩大,企业已经是研发经费投入主体和执行主体;相比国有企业,民营企业更具研发投资动力,是企业研发经费投入主体;我国企业研发经费投入增速较高,但研发经费投资规模和强度低于世界主要创新型国家;我国企业科学研究经费布局明显低于世界主要创新型国家,严重制约企业自主创新能力提升;我国企业基础研究占比偏低与创新特性、企业使命、发展阶段、企业能力、体制机制等因素有关,新时代应重点引导和激励更多企业向"爱迪生象限"和"巴斯德象限"跃升。  相似文献   
50.
研发投入是一种高风险的投资,研发投入过多或过少都不利于企业的发展,而如何在企业资源有限的情况下,合理安排研发投入以获取持续的竞争能力是企业研发管理的重点。应该说,研发投入系统是一种复杂的系统,本文首先对研发投资预算的方法进行了回顾,继而提出了运用系统动力学编制研发投资预算的思路并构建了基于系统动力学的研发投资预算模型,该模型将研发系统分为研发流程、研发团队和现金流等三个子模块并描述了研发投资预算的影响因素及其作用过程,最后,以电子产品为例运用该模型模拟了四种不同研发投资预算方案的效果。  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