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   43890篇
  免费   879篇
  国内免费   1篇
财政金融   8161篇
工业经济   3145篇
计划管理   6963篇
经济学   10042篇
综合类   545篇
运输经济   328篇
旅游经济   733篇
贸易经济   7015篇
农业经济   2183篇
经济概况   5564篇
信息产业经济   3篇
邮电经济   88篇
  2021年   265篇
  2020年   496篇
  2019年   795篇
  2018年   900篇
  2017年   953篇
  2016年   952篇
  2015年   598篇
  2014年   1028篇
  2013年   4534篇
  2012年   1401篇
  2011年   1500篇
  2010年   1291篇
  2009年   1438篇
  2008年   1369篇
  2007年   1187篇
  2006年   1109篇
  2005年   960篇
  2004年   918篇
  2003年   884篇
  2002年   870篇
  2001年   893篇
  2000年   863篇
  1999年   809篇
  1998年   830篇
  1997年   784篇
  1996年   781篇
  1995年   686篇
  1994年   691篇
  1993年   699篇
  1992年   717篇
  1991年   726篇
  1990年   620篇
  1989年   526篇
  1988年   504篇
  1987年   529篇
  1986年   521篇
  1985年   772篇
  1984年   739篇
  1983年   688篇
  1982年   629篇
  1981年   589篇
  1980年   627篇
  1979年   567篇
  1978年   469篇
  1977年   408篇
  1976年   358篇
  1975年   378篇
  1974年   318篇
  1973年   308篇
  1972年   214篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
We analyze the potential competitive effects of the proposed Basel II capital regulations on US bank credit card lending. We find that bank issuers operating under Basel II will face higher regulatory capital minimums than Basel I banks, with differences due to the way the two regulations treat reserves and gain-on-sale of securitized assets. During periods of normal economic conditions, this is not likely to have a competitive effect; however, during periods of substantial stress in credit card portfolios, Basel II banks could face a significant competitive disadvantage relative to Basel I banks and nonbank issuers.  相似文献   
122.
The paper presents a technique developed by the authors, which makes it possible to determine the necessary amount of financing for education at all the budget system levels for 2008-2010, based on the Russian average value of financing, taking into account the budget expenditures index for two variants of student population, i.e. the actual number of on-budget students and the number of students required to meet the economy’s need for trained workers. The technique was developed and the calculations were made on the basis of Russian long-term forecasts and the Russian three-year federal budget for 2008–2010.  相似文献   
123.
We extend the concept of piecewise linear histogram introduced recently by Beirlant, Berlinet and Györfi. The disadvantage of that histogram is that in many models it takes on negative values with probability close to 1. We show that for a wide set of models, the extended class of estimates contains a bona fide density with probability tending to 1 as the sample size n increases to infinity. The mean integrated absolute error in the extended class of estimators decreases with the same rate n–2/5 as in the original narrower class.  相似文献   
124.
125.
Traditional methods of estimating market volatility use daily return observations from a stock index to calculate monthly variance. We break with tradition and estimate stock market volatility using the daily, cross-sectional standard deviation of returns for all firms trading on the New York Stock Exchange and the American Stock Exchange. We find a significantly positive relation between risk and return. Market volatility is estimated to be about half the volatility level previously reported. The intraday, cross-sectional market volatility measure provides findings consistent with risk-return theory.  相似文献   
126.
127.
This article finds that gender differences in on-the-job training significantly affect the male/female wage gap. First, we find that previously trained workers exhibit larger cumulative wage gains during their current training. Thus, a substantial portion of the gender wage gap results from the fact that women have little prior training relative to men. Second, a significant amount of the observed male/female wage differential is explained by less female acquisition of current training. Gender differences in workplace promotion and training practices help explain why women accumulate less training than men. Both of these sources of gender differences have lessened from 1976 to 1985, which has led to a narrowing of the male/female wage gap.  相似文献   
128.
129.
通过对油价波动的历史原因、市场内在因素和人为因素的分析可以看出,石油市场已进入一个新时期,油价将变得更加动荡,而且在波动中呈上升趋势。预计新的平均价位大体为每桶20美元。为此,石油公司应积极研究贸易策略,一方面设法使自身免受损失,另一方面还要寻求从价格波动中赢利。只有准备充分,才能够抗御油价的剧烈波动和周期性变化,进而获得生存与发展。  相似文献   
130.
This article provides empirical evidence on the intraday relation between spot volatility and trading volume in the Spanish stock index futures market. GARCH methodology is used to estimate spot volatility. We analyze the potential relation between spot and futures trading volume and spot volatility by estimating the corresponding conditional density functions as proposed in Quah (1997). Our results reveal no significant link between those variables. Similar findings arise when expected and unexpected volume is considered. Our results suggest that derivative market is not a force behind episodes of significant spot jump volatility. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:841–858, 2003  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