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   136231篇
  免费   3231篇
  国内免费   2篇
财政金融   25507篇
工业经济   11629篇
计划管理   21671篇
经济学   28984篇
综合类   1464篇
运输经济   978篇
旅游经济   2513篇
贸易经济   23449篇
农业经济   6158篇
经济概况   16867篇
信息产业经济   7篇
邮电经济   237篇
  2021年   827篇
  2020年   1619篇
  2019年   2377篇
  2018年   2296篇
  2017年   2477篇
  2016年   2681篇
  2015年   2079篇
  2014年   3391篇
  2013年   15282篇
  2012年   4208篇
  2011年   4142篇
  2010年   3697篇
  2009年   4324篇
  2008年   3903篇
  2007年   3266篇
  2006年   3595篇
  2005年   3563篇
  2004年   3115篇
  2003年   2874篇
  2002年   2858篇
  2001年   2611篇
  2000年   2533篇
  1999年   2435篇
  1998年   2285篇
  1997年   2323篇
  1996年   2180篇
  1995年   1985篇
  1994年   2010篇
  1993年   1965篇
  1992年   2032篇
  1991年   1923篇
  1990年   1811篇
  1989年   1668篇
  1988年   1607篇
  1987年   1609篇
  1986年   1694篇
  1985年   2455篇
  1984年   2330篇
  1983年   2141篇
  1982年   1999篇
  1981年   1925篇
  1980年   1910篇
  1979年   1845篇
  1978年   1629篇
  1977年   1622篇
  1976年   1378篇
  1975年   1273篇
  1974年   1185篇
  1973年   1186篇
  1972年   898篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
81.
82.
Over the last decade, an increasing percentage of the profits reported by U.S. corporations were earned by their foreign subsidiaries and retained outside the United States resulting in the deferral of income taxes. The American Jobs Creation Act of 2004 provided a temporary federal tax incentive to remit such earnings, which resulted in the repatriation of $140 billion by the 30 firms comprising the Dow Jones Industrial Average. An analysis of the financial reporting disclosures made by these firms reveals that a tax expense was not fully recognized on a substantial portion of the earnings until repatriation because of an exception for foreign reinvestments deemed to be essentially permanent in duration. The implications of the currently acceptable accounting for undistributed foreign earnings are discussed as well as recommendations to improve the relevancy and reliability of the disclosures required for this exception to comprehensive recognition of deferred taxes.  相似文献   
83.
We empirically investigate the interactions among hedging, financing, and investment decisions. We argue that the way in which hedging affects a firm's financing and investing decisions differs for firms with different growth opportunities. We find that high growth firms increase their investment, but not leverage, by hedging. However, we also find that firms with few investment opportunities use derivatives to increase their leverage.  相似文献   
84.
The current progress of electrification in Russia is clearly insufficient compared with G8 countries. At the same time, economy sectors have a high potential for energy saving. The electricity consumption of households depends on their cash income and the growth rate of electricity tariffs.  相似文献   
85.
86.
87.
回顾1.需求7月份,世界主要经济体跌幅趋缓,显现经济复苏迹象。中国经济更是率先走出低迷,增长提速,第二季度国内生产总值同比增长7.9%。基础设施投资起到了决定性的作用。7月份固定资产投资延续上半年的趋  相似文献   
88.
If actively managed mutual funds suffer from diminishing returns to scale, funds should alter investment behavior as assets under management increase. Although asset growth has little effect on the behavior of the typical fund, we find that large funds and small‐cap funds diversify their portfolios in response to growth. Greater diversification, especially for small‐cap funds, is associated with better performance. Fund family growth is related to the introduction of new funds that hold different stocks from their existing siblings. Funds with many siblings diversify less rapidly as they grow, suggesting that the fund family may influence a fund's portfolio strategy.  相似文献   
89.
This paper examines the spatial patterns of unemployment in Chicago between 1980 and 1990. We study unemployment clustering with respect to different social and economic distance metrics that reflect the structure of agents' social networks. Specifically, we use physical distance, travel time, and differences in ethnic and occupational distribution between locations. Our goal is to determine whether our estimates of spatial dependence are consistent with models in which agents' employment status is affected by information exchanged locally within their social networks. We present non‐parametric estimates of correlation across Census tracts as a function of each distance metric as well as pairs of metrics, both for unemployment rate itself and after conditioning on a set of tract characteristics. Our results indicate that there is a strong positive and statistically significant degree of spatial dependence in the distribution of raw unemployment rates, for all our metrics. However, once we condition on a set of covariates, most of the spatial autocorrelation is eliminated, with the exception of physical and occupational distance. Racial and ethnic composition variables are the single most important factor in explaining the observed correlation patterns. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   
90.
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