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   13361篇
  免费   241篇
财政金融   2462篇
工业经济   1004篇
计划管理   2130篇
经济学   2768篇
综合类   137篇
运输经济   62篇
旅游经济   209篇
贸易经济   2194篇
农业经济   609篇
经济概况   1995篇
邮电经济   32篇
  2020年   120篇
  2019年   182篇
  2018年   196篇
  2017年   233篇
  2016年   240篇
  2015年   240篇
  2014年   275篇
  2013年   1196篇
  2012年   356篇
  2011年   365篇
  2010年   327篇
  2009年   353篇
  2008年   361篇
  2007年   317篇
  2006年   289篇
  2005年   275篇
  2004年   225篇
  2003年   258篇
  2002年   252篇
  2001年   243篇
  2000年   247篇
  1999年   267篇
  1998年   234篇
  1997年   218篇
  1996年   213篇
  1995年   199篇
  1994年   199篇
  1993年   225篇
  1992年   210篇
  1991年   216篇
  1990年   179篇
  1989年   184篇
  1988年   166篇
  1987年   162篇
  1986年   155篇
  1985年   276篇
  1984年   278篇
  1983年   243篇
  1982年   221篇
  1981年   208篇
  1980年   225篇
  1979年   210篇
  1978年   172篇
  1977年   195篇
  1976年   152篇
  1975年   151篇
  1974年   139篇
  1973年   137篇
  1971年   102篇
  1970年   97篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
A survey conducted in Mississippi, Texas, Indiana, and Nebraska elicited producers' preferences for various farm policy changes. This permitted examination of the diversity of preferences that single-state studies have not allowed. Five policy choices, including deficiency payments, loan programs, crop insurance, export programs, and disaster payments were examined. Logit model results predicting producer preferences for each of the five dichotomous policy choices are reported. Explanatory variables based on expected utility theory such as risk aversion, price and yield variability, and price–yield correlation are significant in various models.  相似文献   
13.
14.
15.
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   
16.
17.
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   
18.
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   
19.
20.
Search and Liquidity in Single-Family Housing   总被引:5,自引:0,他引:5  
A two-stage least squares model of housing prices is estimated with data collected from 3358 single-family home transactions. The results provide evidence for an optimal marketing period and indicate that a liquidity premium is priced in single-family home sales. Consistent with the hypothesis derived from economic search models, the model shows higher selling prices for houses having longer expected marketing periods. The model also shows a price premium for houses that sell faster than expectations. This effect supports the concept that liquidity is a value-enhancing characteristic.  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