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   138895篇
  免费   3938篇
  国内免费   2篇
财政金融   26074篇
工业经济   11698篇
计划管理   22240篇
经济学   30140篇
综合类   1498篇
运输经济   979篇
旅游经济   2509篇
贸易经济   23950篇
农业经济   6195篇
经济概况   17287篇
信息产业经济   8篇
邮电经济   257篇
  2021年   861篇
  2020年   1688篇
  2019年   2470篇
  2018年   2463篇
  2017年   2639篇
  2016年   2808篇
  2015年   2150篇
  2014年   3472篇
  2013年   15591篇
  2012年   4319篇
  2011年   4325篇
  2010年   3842篇
  2009年   4439篇
  2008年   4039篇
  2007年   3362篇
  2006年   3663篇
  2005年   3632篇
  2004年   3172篇
  2003年   2950篇
  2002年   2874篇
  2001年   2716篇
  2000年   2611篇
  1999年   2509篇
  1998年   2373篇
  1997年   2407篇
  1996年   2276篇
  1995年   2060篇
  1994年   2049篇
  1993年   2015篇
  1992年   2071篇
  1991年   2002篇
  1990年   1873篇
  1989年   1694篇
  1988年   1630篇
  1987年   1643篇
  1986年   1720篇
  1985年   2482篇
  1984年   2358篇
  1983年   2155篇
  1982年   2014篇
  1981年   1944篇
  1980年   1916篇
  1979年   1852篇
  1978年   1646篇
  1977年   1625篇
  1976年   1388篇
  1975年   1279篇
  1974年   1187篇
  1973年   1187篇
  1972年   897篇
排序方式: 共有10000条查询结果,搜索用时 390 毫秒
121.
This paper presents the case for and the evidence in favour of passive investment strategies and examines the major criticisms of the technique. I conclude that the evidence strongly supports passive investment management in all markets—small–capitalisation stocks as well as large–capitalisation equities, US markets as well as international markets, and bonds as well as stocks. Recent attacks on the efficient market hypothesis do not weaken the case for indexing.  相似文献   
122.
The present paper was inspired by and is a response to the Rola-Rubzen, Hardaker and Dillon paper 'Agricultural economists and world poverty: progress and prospects' (Rola-Rubzen et al. 2001). It is agreed that the position of agricultural economists in foreign aid and poverty programs has declined over recent decades. Such a feeling of guilt and remorse expressed by the above authors does indeed create considerable 'angst'. A major reason for this state of affairs lies in 'the flavour of the month' approach of the development agencies. These include women in development, gender-based farming systems research, household nutrition and food security, people participation, and targeting the poorest of the poor. These fads have driven disciplinary considerations to the wall and the more widely-defined objectives have reduced the drive for economic efficiency. We argue there is still a place for better designed and delivered assistance programs within the wider framework of assistance that has become fashionable. Greater application of institutional principles in both the political processes associated with assistance and the implementation agencies would improve the outcomes of many projects. Particular attention would need to be given to the interface between the development agencies and recipient governments. The present paper picks up on the market failure aspects of agriculture's rather poor contribution to development, and develops a wider perspective in terms of the new institutional economics and a continuing role for the agricultural economist.  相似文献   
123.
124.
Major tax reform to simplify the UK tax system is possible. Merging income taxes, social security taxes and corporation tax into only a single flat-rate of tax on all incomes would be a radical start. Avoiding taxes on income and expenditure which are 'too high' requires major reductions in government spending, mainly on the welfare state. Given the political will, over a period of years we really can hugely improve the UK tax system.  相似文献   
125.
The decline in private health insurance coverage over the period 1989–95 is analysed using the ABS National Health Surveys. Individuals' health status and health risk behaviours are found to be significant determinants of their decision to purchase private health insurance. At a point in time, the pool of the insured is very heterogeneous, with a mix of both good and bad health risks. It is found that the decline in insurance coverage over the period 1989–95 coincided with an increase in the degree of 'adverse selection' within the insured population.  相似文献   
126.
127.
Exploring the Intensive and Extensive Margins of World Trade   总被引:1,自引:0,他引:1  
World trade evolves at two margins. Where a bilateral trading relationship already exists it may increase through time (intensive margin). But trade may also increase if a trading bilateral relationship is newly established between countries that have not traded with each other in the past (extensive margin). We provide an empirical dissection of post–World War II growth in manufacturing world trade along these two margins. We propose a “corner-solutions version” of the gravity model to explain movements on both margins. A Tobit estimation of this model resolves the so-called “distance puzzle”. It also finds more convincing evidence than recent literature that WTO-membership enhances trade. JEL no. F12, F15  相似文献   
128.
129.
I examine the effect of reform on telecom performance using a second-generation regulatory framework index and panel data techniques to test how regulatory governance affected sector performance in 22 Latin American countries during the period 1980–1997. Sound regulatory governance in telecommunications has a positive impact on network expansion and efficiency, in both the static and dynamic specifications. Openness of markets to competition and divestment of former state-owned telco operators also contributed positively to better sector performance. The dynamic specification shows that past performance has its own strong effect on present (and perhaps future) performance.  相似文献   
130.
This article examines the demographic and geographical importance of wealthy middle-class women. It argues that in certain towns and cities, notably London, such women were of sufficient importance to merit attention in their own right. Drawing upon a sample of wills, it describes the types of wealth owned by these women. By examining women's investment in government securities, it argues that women's wealth was of crucial importance to the British state. Its findings challenge conventional understandings of the relationships between gender ideology, wealth holding, and economic development.  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