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   28800篇
  免费   310篇
财政金融   4885篇
工业经济   1648篇
计划管理   4571篇
经济学   6474篇
综合类   564篇
运输经济   72篇
旅游经济   214篇
贸易经济   6212篇
农业经济   589篇
经济概况   3239篇
信息产业经济   44篇
邮电经济   598篇
  2021年   96篇
  2020年   141篇
  2019年   185篇
  2018年   2465篇
  2017年   2241篇
  2016年   1419篇
  2015年   268篇
  2014年   364篇
  2013年   1283篇
  2012年   780篇
  2011年   2244篇
  2010年   2096篇
  2009年   1800篇
  2008年   1813篇
  2007年   2096篇
  2006年   329篇
  2005年   609篇
  2004年   652篇
  2003年   762篇
  2002年   475篇
  2001年   279篇
  2000年   272篇
  1999年   249篇
  1998年   241篇
  1997年   202篇
  1996年   212篇
  1995年   182篇
  1994年   185篇
  1993年   208篇
  1992年   199篇
  1991年   198篇
  1990年   154篇
  1989年   161篇
  1988年   144篇
  1987年   137篇
  1986年   146篇
  1985年   241篇
  1984年   234篇
  1983年   209篇
  1982年   192篇
  1981年   193篇
  1980年   205篇
  1979年   197篇
  1978年   159篇
  1977年   175篇
  1976年   143篇
  1975年   134篇
  1974年   127篇
  1973年   126篇
  1970年   94篇
排序方式: 共有10000条查询结果,搜索用时 41 毫秒
101.
The demand for and supply of analysts’ opinions in this model yield an equilibrium that demonstrates how the information content of the opinions reacts to changes in exogenous parameters. The model also shows how changes in the parameters make analysts’ opinions more or less dispersed; for example, a decline in investor risk aversion, a decrease in market volatility, and an increase in information costs can lead to analysts’ opinions becoming more similar. Recognizing how exogenous factors can affect the supply and demand of analysts’ opinions gives additional insights into questions concerning what may appear to be herd behavior by analysts and also the relationship between forecast dispersion and information content. (JEL: G29, C71)  相似文献   
102.
103.
Ohne Zusammenfassung Dipl.-Ing. (univ.) Michael Belau ist Director und Head of Rental Management Dipl.-Wirtschaftsing. (FH) Michael Schildger ist Vice President und Head of Finance Dr. Verena Sturm ist Manager Corporate Real Estate Services  相似文献   
104.
105.
106.
Much of the debate about rising health care costs in the United States centers on the notion of "cost shifting." Cost shifting is loosely defined as charging one set of patients a higher price to offset losses on another set of patients. One aspect of the cost shifting debate that the empirical work has ignored is whether or not doctors—as opposed to hospitals—practice cost shifting. The analysis here investigates this question using the Physicians' Practice Costs and Income Survey, 1983–1985 (PPCIS, expanded version)
Using variation across states in Medicaid reimbursements, the analysis finds that lower Medicaid reimbursements tend to lower the fees physicians charge, contradicting the standard cost shifting story. Evidence also suggests that lower Medicaid reimbursements tend to cause physicians to treat fewer Medicaid patients. These results are consistent with profit maximizing behavior for physicians and also with the hypothesis that physicians exert some monopoly power.  相似文献   
107.
108.
G. H. BURROWS 《Abacus》1994,30(1):50-64
The extent to which allocated common costs should influence business decisions remains controversial in management accounting. In the finance and investment literature this issue is generally ignored or dismissed by appeals to the'incremental' principle. This article presents an historical analysis of allocations in long-run investing and pricing decisions. It is demonstrated that seminal figures in the development of both investment and price theory were conscious of the need for firms to cover common costs and generally favoured some form of allocation. The anti-allocationist position is shown to be of relatively recent origin and to have caused an inconsistency in the management accounting literature in the treatment of common costs. European costing theory is shown to have been consistently allocationist. Evidence of a return in the recent U.S. literature to the older Anglo-American, and continuing European, allocations tradition is presented.  相似文献   
109.
Extensification of agriculture is one of the major factors contributing to the destruction of forests in Africa. In Sudan, such horizontal expansion comes at the expense of land devoted to trees and other vegetation, thereby inducing conditions that are inimical to sustainable agricultural production. Different factors have contributed to extensification. Although high economic returns from crop (mainly sorghum) production was an important factor encouraging extensification of rainfed mechanized farming, other factors outside agriculture have also contributed to that expansion. This paper uses data from eastern Sudan and an acreage response model, to identify the most important factors influencing acreage expansion. Different measures and forms of risk were used in the acreage response model. The paper shows how policies in the energy sector can indirectly influence acreage expansion in the agricultural sector.  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