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   8327篇
  免费   257篇
财政金融   1728篇
工业经济   716篇
计划管理   1334篇
经济学   1757篇
综合类   110篇
运输经济   94篇
旅游经济   162篇
贸易经济   1746篇
农业经济   269篇
经济概况   596篇
信息产业经济   4篇
邮电经济   68篇
  2023年   58篇
  2022年   47篇
  2021年   80篇
  2020年   122篇
  2019年   197篇
  2018年   219篇
  2017年   245篇
  2016年   214篇
  2015年   177篇
  2014年   279篇
  2013年   952篇
  2012年   314篇
  2011年   356篇
  2010年   323篇
  2009年   368篇
  2008年   328篇
  2007年   278篇
  2006年   255篇
  2005年   287篇
  2004年   236篇
  2003年   245篇
  2002年   236篇
  2001年   194篇
  2000年   174篇
  1999年   181篇
  1998年   142篇
  1997年   152篇
  1996年   125篇
  1995年   119篇
  1994年   125篇
  1993年   115篇
  1992年   107篇
  1991年   95篇
  1990年   65篇
  1989年   75篇
  1988年   68篇
  1987年   66篇
  1986年   68篇
  1985年   112篇
  1984年   91篇
  1983年   81篇
  1982年   89篇
  1981年   65篇
  1980年   74篇
  1979年   67篇
  1978年   57篇
  1977年   60篇
  1976年   55篇
  1974年   32篇
  1973年   20篇
排序方式: 共有8584条查询结果,搜索用时 0 毫秒
21.
22.
The discussion of industrial democracy in Britain has exploded in the last few years, but the result has been to write an agenda which has still to be worked through, not to reveal a consensus which can be written into action at once.  相似文献   
23.
Michael Meyen 《Publizistik》2004,49(2):194-206
Der vorliegende Beitrag fragt nach der demographischen Struktur der zentralen akademischen Akteure der Kommunikationswissenschaft in Deutschland und nach m?glichen Ver?nderungen dieser Struktur in den letzten 50 Jahren. Die Analyse zeigt zum einen, dass von einem einheitlichen Zugang zum Hochschullehrerberuf nach wie vor keine Rede sein kann, und zum anderen, dass das Fach vor einer demographischen Herausforderung steht. Die Kommunikationswissenschaft hat sich durch Akademisierung und ?Versozialwissenschaftlichung? von ihren Wurzeln gel?st. War Berufserfahrung im Medienbereich bis in die 1960er Jahre Voraussetzung für eine Berufung, verfügt heute nur noch eine Minderheit über solche Erfahrungen. Da die Existenz des Faches im Rahmen der Universit?t auch von der Nachfrage der Studierenden abh?ngt, kann man über die Folgen des anstehenden Generationswechsels nur spekulieren. In jedem Fall fehlt es an formal für die Hochschullehrerlaufbahn qualifiziertem Nachwuchs. Deshalb sind erhebliche Anstrengungen erforderlich, wenn der Boom im letzten Drittel des 20. Jahrhunderts sich nicht als Seifenblase erweisen soll.  相似文献   
24.
The Government has decided that referenda will be held in three northern regions of England regarding the establishment of elected regional assemblies. If these are established, the areas with two-tier local government would be converted to unitary structures. The Government asserts that this would be necessary because the retention of the two tiers would be the retention of one tier too many, but offers no evidence to back up this assertion. This assertion has been tested by an analysis of the Audit Commission's Comprehensive Performance Assessment (CPA) ratings for the single tier and county councils, which shows that the counties have achieved better assessments than the other principal authorities. In addition, the Boundary Committee has been advised by the Government to use a costing model which is seriously inadequate: transition costs are ignored and the basis for assessing on-going costs is extremely narrow. Transition costs would be at least £110 per resident in the two-tier areas if there were to be three unitary councils for each county area, and there is no reasonable prospect that there would in fact be on-going savings except with unitary counties.  相似文献   
25.
High transaction costs are detrimental to the efficient operation or existence of markets for inputs and outputs. The cost of information and the costs associated with the search for trade partners, the distance to formal markets and contract enforcement are likely to influence the marketing of food crops. This study hypothesises that the level of income generated from food-crop sales by small-scale farmers in the Impendle and Swayimana districts of KwaZuluNatal is influenced by transaction costs and certain household and farm characteristics. Regression analysis shows that the depth of marketing methods is significantly influenced by transaction cost proxies, such as cooperation with large commercial farmers and ownership of means of transport. Results from a block-recursive regression analysis show that the level of crop income generated is determined by the depth of marketing methods, the size of allocated arable land and off-farm income. Households with lower transaction costs, sizeable allocated land and off-farm income can be expected to generate higher income from food crops. Investment in public goods such as roads, telecommunications and an efficient legal system (to uphold commercial contracts), as well as farmer support services (input supply, extension, marketing information and research), would probably raise farm and non-farm income by reducing transaction costs. This would increase the effective demand for locally produced goods and services, thus contributing to rural employment and livelihoods within rural communal areas.  相似文献   
26.
27.
28.
The standard formal presentation of the Dixit‐Stiglitz‐Krugman (DSK) model of monopolistic competition with a constant‐elasticity‐of‐substitution (CES) utility function supposes a sufficient number of firms so that the elasticity of demand facing each variety is approximated by a constant elasticity of substitution. Such a formulation forces economies of scale to be frozen so that firm size never changes. We use a Bertrand‐Nash interpretation of the equilibrium that allows the elasticity of demand facing each variety to depend on the number of varieties, thus allowing the gains from globalization to reflect both the increase in variety and the exploitation of economies of scale. We also develop a precise expression for per capita real income with any number of sectors and examine the age‐old question of the socially optimal number of varieties.  相似文献   
29.
Voter participation rates vary widely across the 50 states. This empirical study seeks, within the context of a broadened version of the ‘rational voter model,’ to identify determinants of this interstate variation. Using the 2004 general election as the study period, it is found that the voter participation rate in a state is positively related to the percent of the state's adult population with at least a high school education, the state's unemployment rate, the percent of the state's population age 65 and older, and the female labor force participation rate in the state. In addition, it is found that voter turnout in a state is negatively related to the state's median family income and the percentage of its population that is Hispanic.  相似文献   
30.
This paper is the first comprehensive analysis of the U.S. antidumping sunset review process required under WTO commitments. The econometric models study determinants of decisions by three U.S. actors: the petitioning industry, the Department of Commerce (DOC), and the International Trade Commission (ITC). Domestic industries facing potential vigorous competition seem to use sunset reviews to maintain current high domestic profits. U.S. governmental institutions use criteria broadly consistent with their legal obligations. Exports involving Chinese firms may face negative bias in the ITC process. JEL no. F1, F13  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