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   29479篇
  免费   680篇
财政金融   5319篇
工业经济   2168篇
计划管理   4999篇
经济学   6700篇
综合类   310篇
运输经济   188篇
旅游经济   510篇
贸易经济   4551篇
农业经济   1441篇
经济概况   3902篇
邮电经济   71篇
  2021年   172篇
  2020年   287篇
  2019年   389篇
  2018年   553篇
  2017年   548篇
  2016年   521篇
  2015年   383篇
  2014年   587篇
  2013年   2838篇
  2012年   805篇
  2011年   864篇
  2010年   686篇
  2009年   824篇
  2008年   863篇
  2007年   772篇
  2006年   713篇
  2005年   666篇
  2004年   671篇
  2003年   654篇
  2002年   610篇
  2001年   612篇
  2000年   604篇
  1999年   525篇
  1998年   533篇
  1997年   505篇
  1996年   510篇
  1995年   454篇
  1994年   500篇
  1993年   511篇
  1992年   475篇
  1991年   501篇
  1990年   457篇
  1989年   381篇
  1988年   391篇
  1987年   384篇
  1986年   397篇
  1985年   576篇
  1984年   532篇
  1983年   538篇
  1982年   520篇
  1981年   447篇
  1980年   443篇
  1979年   451篇
  1978年   382篇
  1977年   345篇
  1976年   275篇
  1975年   268篇
  1974年   249篇
  1973年   238篇
  1972年   198篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
71.
Summary This article presents the results of an inquiry into the relationship that is to be expected on theoretical grounds between women's wage rate compared to men's on the one hand and some macroeconomic variables on the other. Becker's discrimination theory is confronted with alternative theories. On the base of data for the Netherlands the authors investigate which theory is most suited to explain the development of women's relative wage rate for the period 1950–1983. They conclude that the results of the empirical analysis predominantly support Becker's theory.The authors wish to thank Mr. R. Haagsma and Professor C.K.F. Nieuwenburg for their comments on an earlier draft of this article. Furthermore, they are grateful to Miss M.J.R. Key for computational assistance.  相似文献   
72.
The influence of lagged adjustment and consumer spending on retail labour productivity is investigated. Both influences result in a procyclical productivity pattern.  相似文献   
73.
Forecast improvement is often approached by attempting to find the “best” model for a given situation. Less attention has been paid to the possibility of examining past prediction errors for patterns that may suggest forecast adjustments for the future. This empirical study involves one firm’s management judgment forecasts for product sales and the attempts made to improve their accuracy by removing certain types of bias. In three of the five series examined, error reduction averaging close to thirty percent occurs as a result of the adjustment procedure. The other two series proved to be relatively free from bias and were therefore not in need of the correction method described.  相似文献   
74.
75.
76.
Social marketing involves influencing voluntary behaviour of people towards a social end. Examples of social marketing range from campaigns to encourage healthy physical behaviour to efforts to encourage tax support for public education, overcome racism, or stimulate ‘patriotic’ behaviour. Using data from a summer 2001 telephone survey of 600 young adults, this paper investigates how recruitment campaigns may benefit from considering gender differences in importance ratings of a variety of benefits promoted by the military in the USA. Importance ratings are assessed using differences in means and variances tests. Findings identify gender specific differences that may be used to enhance recruitment campaigns. Copyright © 2004 Henry Stewart Publications  相似文献   
77.
We examine the costs and benefits of the global integrationof initial public offering (IPO) markets associated with thediffusion of U.S. underwriting methods in the 1990s. Bookbuildingis becoming increasingly popular outside the United States andtypically costs twice as much as a fixed-price offer. However,on its own, bookbuilding only leads to lower underpricing whenconducted by U.S. banks and/or targeted at U.S. investors. Formost issuers, the gains associated with lower underpricing outweighedthe additional costs associated with hiring U.S. banks or marketingin the United States. This suggests a quality/price trade-offcontrasting with the findings of Chen and Ritter, particularlysince non-U.S. issuers raising US$20 million–US$80 millionalso typically pay a 7% spread when U.S. banks and investorsare involved.  相似文献   
78.
The paper asks the question – as time series analysis moves from consideration of conditional mean values and variances to unconditional distributions, do some of the familiar concepts devised for the first two moments continue to be helpful in the more general area? Most seem to generalize fairly easy, such as the concepts of breaks, seasonality, trends and regime switching. Forecasting is more difficult, as forecasts become distributions, as do forecast errors. Persistence can be defined and also common factors by using the idea of a copula. Aggregation is more difficult but causality and controllability can be defined. The study of the time series of quantiles becomes more relevant.  相似文献   
79.
Two of the main forces driving European emigration in the late nineteenth century were real wage gaps between sending and receiving regions and demographic booms in the low‐wage sending regions. Our new estimates of net migration for the countries of sub‐Saharan Africa show that exactly the same forces driving African across‐border migration are at work today. The results suggest that rapid growth in the cohort of potential young emigrants, population pressure on the resource base, and slow economic growth are likely to intensify the pressure for migration out of Africa and into high‐wage OECD countries over the next two decades.  相似文献   
80.
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