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   14279篇
  免费   460篇
  国内免费   137篇
财政金融   672篇
工业经济   271篇
计划管理   2022篇
经济学   1885篇
综合类   2213篇
运输经济   50篇
旅游经济   50篇
贸易经济   660篇
农业经济   5512篇
经济概况   1541篇
  2024年   52篇
  2023年   200篇
  2022年   239篇
  2021年   297篇
  2020年   460篇
  2019年   313篇
  2018年   373篇
  2017年   398篇
  2016年   399篇
  2015年   398篇
  2014年   936篇
  2013年   842篇
  2012年   1150篇
  2011年   1395篇
  2010年   1274篇
  2009年   956篇
  2008年   879篇
  2007年   836篇
  2006年   903篇
  2005年   661篇
  2004年   570篇
  2003年   411篇
  2002年   285篇
  2001年   248篇
  2000年   168篇
  1999年   97篇
  1998年   35篇
  1997年   20篇
  1996年   19篇
  1995年   6篇
  1994年   8篇
  1993年   11篇
  1992年   4篇
  1991年   3篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1985年   10篇
  1984年   14篇
  1983年   1篇
  1982年   2篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
221.
We study the effect of a declining labor force on the incentives to engage in labor-saving technical change and ask how this effect is influenced by institutional characteristics of the pension scheme. When labor is scarcer it becomes more expensive and innovation investments that increase labor productivity are more profitable. We incorporate this channel in a new dynamic general equilibrium model with endogenous economic growth and heterogeneous overlapping generations. We calibrate the model for the US economy and obtain the following results. First, the effect of a decline in population growth on labor productivity growth is positive and quantitatively significant. In our benchmark, it is predicted to increase from an average annual growth rate of 1.74% over 1990–2000 to 2.41% in 2100. Second, institutional characteristics of the pension system matter both for the growth performance and for individual welfare. Third, the assessment of pension reform proposals may depend on whether economic growth is endogenous or exogenous.  相似文献   
222.
Differences in the internal composite structure during urban built-up land sprawl (UBLS) will generate different effects, and thus, a city’s spatial structure has important bearings on urban sustainability. This study investigates the spatial and temporal characteristics of the internal structure and allocation relationship of UBLS using multivariate spatial correlation and the Weaver-Tomas composite coefficient based on site data of granted built-up land parcels. Moreover, the composite structure evolution process of UBLS and its driving mechanism are examined in this study. The results reveal that the amount structure of the three types of UBLS (i.e. industrial land sprawl, residential land sprawl and commercial land sprawl) tended to be balanced during the study period. Following the transformation and upgrade of the urban industry structure, the overall composite structure of UBLS ranged from single residential land-use structure (Res.) to industrial-residential land-use structure (Ind.-Res.) In the early period of land marketization, the marketization land granting mechanism caused low spatial correlation between the various types of UBLS and a single composite structure, i.e. Res., single commercial land-use structure (Com.), and residential-commercial land-use structure (Res.-Com.). Subsequently, a dual-driving force including the market economy and government interventions caused a relatively high degree of spatial correlation and a multiple composite structure, i.e. Ind.-Res. and industrial-residential-commercial land-use structure (Ind.-Res.-Com.). However, the evolution characteristics of the composite structure in various regions illustrate some problems, such as the spatial isomorphism phenomenon of the composite structure and the dislocation of urban built-up land allocation. The urban internal built-up land spatial layout pattern is the embodiment of two dominant driving forces, the market and the government, interacting with each other according to natural and socioeconomic conditions. Therefore, we suggest that it is necessary to reform the future urban built-up land granting mechanism based on market guidance, and the composite structure of UBLS should be adjusted according to the regional function. The government should reinforce the macro-control of land-use planning for the dispersed granted land parcels so as to optimize the urban land-use structure.  相似文献   
223.
This study applies the concept of institutional plasticity to analyze institutional change, and investigates why actors are unable to change institutions even when change is apparently necessary. Employing historical institutionalism, the analysis focuses on public-private interactions in the recent port reform in Japan. The study’s findings reveal four limits to institutional plasticity due to the respective roles of key actors – the central government, the local port authority, and business entities – in the process of policy reform. The study suggests that while institutional plasticity may enable variation within an existing developmental trajectory or even creation of an entirely new path, insufficient institutional plasticity constrains the creation of new institutions and inhibits institutional change.  相似文献   
224.
Food trucks represent a temporary use of vacant or underutilised land. They have been assumed to increase the livability, vibrancy and attractiveness of a neighbourhood. However, no previous study has investigated whether this effect is reflected in property prices within the surrounding neighbourhood. We investigate the impact of a food truck pod on the values of single-family homes nearby. Using a quasi-experimental design, transaction data from Portland, Oregon and a difference-in-difference specification of a spatial regression model, we find that food trucks actually represent a negative externality, and that proximity of a home to food trucks is penalised by homebuyers. The closer a home is to the food trucks, the lower is the sales price. Explanations for this effect include increased parking shortages and trash issues in a neighbourhood due to food truck visitors.  相似文献   
225.
This paper sheds light on the international spillovers of China's reforms in upgrading industrial capabilities, liberalizing capital account, internationalizing the renminbi, and transition to flexible exchange rates. Drawing on two-country New Keynesian model of endogenous entry and portfolio adjustment, we find that China's industrial upgrading that peddles on yuan appreciation lifts all boats through global production network irrespective of capital account convertibility, degree of renminbi internationalization, and exchange rate reform. Feasibility of appreciation-driven upgrading is called into question, however, when renminbi reform and capital account liberalization go in parallel. We also show that international spillovers disappear once renminbi internationalization is associated with liberalized capital account and flexible renminbi exchange rates.  相似文献   
226.
There is a widespread understanding in critical scholarly literature that the government of Evo Morales is fundamentally challenging the neoliberal order in Bolivia. The empirical record of Morales' first five years in office, however, illustrates significant neoliberal continuities in the country's political economy. At the same time, the most important social movements that resisted neoliberalism prior to Morales' election have been considerably demobilized in its wake. This gives rise to the critique that the Morales government has merely implemented a more politically stable version of the model of accumulation it inherited. This paper draws on recent field research in Bolivia to make a contribution to this broader research agenda on reconstituted neoliberalism. Our focus is twofold. On the one hand, the paper examines the continuities of agrarian class relations from the INRA law at the height of neoliberalism in 1996 to the various agrarian reform initiatives introduced since Morales assumed office in 2006. On the other hand, the paper traces the mobilization of the Bolivian Landless Peasants' Movement (MST) in response to the failure of the 1996 neoliberal agrarian reform, followed by the movement's demobilization after Morales' 2006 agrarian reform initiative. The paper explores this demobilization in the context of agrarian relations that have remained largely unchanged in the same period. Finally, the paper draws on recent reflections by MST members who, to varying degrees, seem to be growing critical of Morales' failure to fundamentally alter rural class relations, and the difficulties of remobilizing their movement at the present time.  相似文献   
227.
毕超 《价值工程》2014,(8):276-277
《运输作业》是物流服务与管理专业系列课程中的重要内容之一,该课程体现企业工作岗位与课程任务相对接,工作过程与教学过程相对接,以任务驱动为手段,力争把学生培养为技能型物流人才。  相似文献   
228.
王全福  郑福珍 《价值工程》2014,(17):257-258
为培养高素质的"卓越现场工程师",需要职业教育创新教学模式,在分析高职建筑设备工程技术专业传统教学模式基础上,引入了CDIO教育模式,并对CDIO在高职建筑设备工程技术专业教学中的应用进行了探讨,为高职教师进行教学模式改革提供了指导。  相似文献   
229.
冯烨 《价值工程》2014,(2):241-242
本文通过笔者学校对大学计算机文化基础的改革,就本课程一体化教学模式下的考核方式进行研究,让学生在完成工作任务的过程中,学到相关的理论知识和实践技能,使学生具备适应工作岗位的职业素养,培养成为素质全面的技能型应用人才。  相似文献   
230.
介绍了当前我国煤炭行业的现状,并以淮南矿业集团为实例,分析了淮南矿业集团面临的实际困难,及资源税改革对淮南矿业集团的影响,并给出了相应的建议。  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