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   47149篇
  免费   676篇
  国内免费   1篇
财政金融   8642篇
工业经济   3006篇
计划管理   7195篇
经济学   10529篇
综合类   883篇
运输经济   260篇
旅游经济   585篇
贸易经济   9317篇
农业经济   1470篇
经济概况   5217篇
信息产业经济   48篇
邮电经济   674篇
  2023年   161篇
  2021年   207篇
  2020年   353篇
  2019年   588篇
  2018年   2845篇
  2017年   2644篇
  2016年   1832篇
  2015年   528篇
  2014年   857篇
  2013年   3373篇
  2012年   1392篇
  2011年   2893篇
  2010年   2632篇
  2009年   2493篇
  2008年   2418篇
  2007年   2622篇
  2006年   851篇
  2005年   1096篇
  2004年   1148篇
  2003年   1191篇
  2002年   959篇
  2001年   683篇
  2000年   658篇
  1999年   601篇
  1998年   547篇
  1997年   558篇
  1996年   535篇
  1995年   464篇
  1994年   485篇
  1993年   500篇
  1992年   502篇
  1991年   485篇
  1990年   387篇
  1989年   366篇
  1988年   352篇
  1987年   360篇
  1986年   382篇
  1985年   565篇
  1984年   515篇
  1983年   472篇
  1982年   457篇
  1981年   403篇
  1980年   453篇
  1979年   381篇
  1978年   322篇
  1977年   311篇
  1976年   245篇
  1975年   258篇
  1974年   217篇
  1973年   205篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
22.
This study investigates the relative roles of bond ratings and financial information in the setting of bond yields. Structural equation modeling techniques are used to learn whether ratings determine yields or whether both ratings and yields are determined by a concurrent set of economic and financial factors. Tests of alternative structural model configurations provide evidence regarding the associations between bond ratings, financial information, and bond yields. Both ratings and financial information are found to play an important role in determining bond yields. In addition, yields are consistent with the higher rating in cases of split ratings.  相似文献   
23.
24.
This paper analyzes the dynamic relationship between primary and secondary mortgage markets and the short-term and long-term market interest rates. Using a series of monthly data on fixed rate mortgage rates and GNMA rates, we explore the dependence and speed of adjustment in these primary and secondary mortgage rates to each other as well as to the long and short-term government rates. The results indicate that residential mortgage rates in general, appear to follow the long-term rate and are not very sensitive to movements in the short-term interest rate.  相似文献   
25.
26.
Using Turkish industry-level data from 1983 to 1990, we find that politically organized industries receive both higher protection and promotion than unorganized ones. Tariff rates are decreasing (increasing) in the import-penetration ratio and the absolute value of the import-demandelasticity for organized (unorganized) industries. Subsidy rates are decreasing (increasing) in the output-supply elasticity for organized (unorganized) industries. The results are consistent with the predictions of the Grossman–Helpman model and its extension in this paper. The mix of protection and promotion is inversely related to the ratio of their respective marginal deadweight cost measures.  相似文献   
27.
28.
Here we consider the hedging roles of a price futures contract versus a revenue futures contract. In the absence of idiosyncratic output risk, the revenue contract almost always dominates the price contract. Idiosyncratic output risk provides conditions under which the price contract should dominate. When production risk is largely idiosyncratic, a producer with an anticipated long actuals position might combine a long revenue futures position with a short price futures position. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:503–512, 2004  相似文献   
29.
Vendor Managed Inventory (VMI) involves the vendor making the replenishment decision for products supplied to a customer based on various inventory and supply chain policies. Information sharing between supply chain members is required in VMI. Sometimes VMI decisions are delayed and/or the information shared is inaccurate. This research examines the effects of information delay and accuracy, and the sharing of sales and forecast information in a VMI environment facing stationary and nonstationary demand. The simulation experiments show the impact of information delay, information inaccuracy, and information sharing on a variety of performance measures, including inventory levels and fill rates.  相似文献   
30.
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