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   24527篇
  免费   443篇
财政金融   4447篇
工业经济   1843篇
计划管理   3778篇
经济学   5350篇
综合类   844篇
运输经济   113篇
旅游经济   297篇
贸易经济   4196篇
农业经济   985篇
经济概况   3073篇
信息产业经济   3篇
邮电经济   41篇
  2021年   111篇
  2020年   219篇
  2019年   316篇
  2018年   986篇
  2017年   1001篇
  2016年   722篇
  2015年   254篇
  2014年   430篇
  2013年   1998篇
  2012年   638篇
  2011年   1222篇
  2010年   1039篇
  2009年   1005篇
  2008年   1000篇
  2007年   1065篇
  2006年   392篇
  2005年   489篇
  2004年   516篇
  2003年   577篇
  2002年   445篇
  2001年   435篇
  2000年   464篇
  1999年   372篇
  1998年   367篇
  1997年   366篇
  1996年   343篇
  1995年   330篇
  1994年   323篇
  1993年   381篇
  1992年   363篇
  1991年   325篇
  1990年   315篇
  1989年   274篇
  1988年   272篇
  1987年   253篇
  1986年   281篇
  1985年   348篇
  1984年   398篇
  1983年   346篇
  1982年   345篇
  1981年   359篇
  1980年   327篇
  1979年   316篇
  1978年   293篇
  1977年   252篇
  1976年   230篇
  1975年   188篇
  1974年   185篇
  1973年   169篇
  1972年   120篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
102.
Current Issues in the Analysis of Commercial Real Estate   总被引:1,自引:0,他引:1  
This paper identifies and discusses a number of current issues regarding our understanding of commercial real estate markets. These issues include: 1) accurate estimation of the quantity and location of our nation's commercial space; 2) an understanding of the linkage between the space and capital markets for commercial real estate; 3) identification of the macroeconomic factors that affect the rate of return on commercial property and whether local market factors also affect the rate of return; 4) problems associated with measuring the return characteristics of equity investments in commercial property (including measures of the diversification benefits and inflation-hedging abilities of this asset class); 5) a better understanding of rental markets, including good measures of changes in effective rents over time; and 6) examination of the rationale for ownership of commercial space by corporate users. This paper reviews recent research related to these questions and suggests future research that should prove to be fruitful.  相似文献   
103.
104.
A growing awareness of workplace hazards and identification of airborne contaminants, coupled with a changing safety and health regulatory environment, created an unexpected demand for new and innovative respirators in the early 1980s. 3M's Occupational Health and Environmental Safety Division broke new ground by taking the team concept further than ever before in the company. The division's Action Teams successfully designed, built and introduced products in less than half the time it would have taken previously. Robert Hershock, Charles Cowman and Douglas Peters describe how 3M learned important lessons about team selection, training, performance and motivation, the importance of project sponsors, and the role of middle management.  相似文献   
105.
106.
107.
This survey article examines the interaction between the domestic capital markets and capital formation in Australia from the 1890s up to the end of World War II. The disenchantment of the City of London with Australian securities in the 1890s opened a window for the development of domestic capital markets. It was the demands of the government for funds, especially during both wars, that transformed the scale and character of local markets. Local deposit taking institutions and stock exchanges handled a sufficient volume of domestic savings to fund the lion's share of both public and private sector capital formation.  相似文献   
108.
Nearly since the first automobile traveled on U.S. soil, questions about how best to compensate people injured by their use have been raised. As early as in 1932, in fact, the tort system of imposing costs on negligent drivers was strongly criticized, and a system of compensation without regard to negligence recommended. Yet despite various efforts to identify and implement improved systems during the past more than 70 years, no clear best compensation mechanism has been found. Current discussions have focused on the “choice” system, under which insureds are allowed to select either a tort system or a no‐fault system of compensation at the time of insurance purchase. New Jersey and Pennsylvania, which implemented very similar choice programs in 1989 and 1990, respectively, offer an opportunity to observe the effects of choice on outcomes such as: use of attorneys, speed of payment, and consistency (equity) of payment. Our results indicate outcomes consistent with expectations in New Jersey (NJ), which switched from no‐fault to choice, but inconsistent with expectations in Pennsylvania (PA), which switched from tort to choice. Furthermore, analysis of tort versus no‐fault selectors postchoice in New Jersey and Pennsylvania does not offer clear evidence of no‐fault's lower administrative costs and speedier, more equitable payment in these jurisdictions.  相似文献   
109.
When the indemnity schedule is contingent on the farmer's price and individual yield, an optimal crop revenue insurance contract depends only on the farmer's gross revenue. However, this design is not efficient if, as is the case with available contracts, the coverage function is based on imperfect estimators of individual yield and/or price. The producer's degree of prudence and the extent of basis risks have important influences on the optimal indemnity schedule. In this broader context, optimal protection is not provided by available U.S. crop insurance contracts and may include combinations of revenue insurance, yield insurance, futures, and options contracts.  相似文献   
110.
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