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   134146篇
  免费   3197篇
  国内免费   1篇
财政金融   25135篇
工业经济   11474篇
计划管理   21228篇
经济学   28373篇
综合类   1428篇
运输经济   949篇
旅游经济   2474篇
贸易经济   23198篇
农业经济   6043篇
经济概况   16800篇
信息产业经济   7篇
邮电经济   235篇
  2021年   822篇
  2020年   1603篇
  2019年   2359篇
  2018年   2281篇
  2017年   2464篇
  2016年   2673篇
  2015年   2074篇
  2014年   3377篇
  2013年   15205篇
  2012年   4152篇
  2011年   4043篇
  2010年   3617篇
  2009年   4255篇
  2008年   3815篇
  2007年   3148篇
  2006年   3518篇
  2005年   3500篇
  2004年   3063篇
  2003年   2818篇
  2002年   2807篇
  2001年   2558篇
  2000年   2474篇
  1999年   2384篇
  1998年   2231篇
  1997年   2280篇
  1996年   2147篇
  1995年   1943篇
  1994年   1969篇
  1993年   1937篇
  1992年   1980篇
  1991年   1871篇
  1990年   1776篇
  1989年   1643篇
  1988年   1581篇
  1987年   1582篇
  1986年   1664篇
  1985年   2417篇
  1984年   2281篇
  1983年   2078篇
  1982年   1944篇
  1981年   1879篇
  1980年   1852篇
  1979年   1777篇
  1978年   1610篇
  1977年   1613篇
  1976年   1372篇
  1975年   1265篇
  1974年   1179篇
  1973年   1181篇
  1972年   895篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
141.
142.
143.
We examine the role of index futures trading in spot market volatility. We use the exponential generalized autoregressive conditional heteroskedasticity (EGARCH) approach to measure volatility, analyze causality and feedback relations between volatilities in the spot and futures markets, and test various hypotheses in the context of a multivariate model that incorporates other macrostate variables. Our empirical results suggest index futures trading may not be blamed for the observed volatility in the spot market. Rather, we find stronger and more consistent support for the alternative posture that volatility in the futures market is an outgrowth of a turbulent cash market. We use the regret (cognitive dissonance) theory to explain our results.  相似文献   
144.
145.
A model that addresses the similarities and differences in conceptual antecedents of attitudes toward private label grocery products and national brand promotions is proposed and tested. The proposed model is tested using a sample of 300 consumers who were recruited from grocery stores, provided behavioral data from sales receipts of their shopping trip, and responded to a survey that contained multi-item construct measures. We predict and find in the study that both price and nonprice related constructs impact both private label attitude and national brand promotion attitude, but the directionality and strength of several of these relationships differ. Implications of these findings for retailers and national manufacturers are discussed.  相似文献   
146.
This research extends the literature on nonfinancial performance measures (NFPMs) by assessing (1) the information content of a broader set of NFPMs and (2) whether NFPMs provide information not provided by financial performance measures (FPMs) from all previously identified FPM categories, rather than just earnings and book value. Specifically, exploratory and confirmatory factor analysis results presented in this paper demonstrate that nineteen NFPMs of major airlines capture seven underlying constructs not captured by eighteen common FPMs. Additionally, this research develops reliable composite measures of the identified performance measure constructs, which prior research argues are superior to individual performance measures.  相似文献   
147.
Recent studies suggest the apparent delay in the stock-price response to earnings announcements (i.e., post-earnings announcement drift) is caused by investors who underestimate the autocorrelation of seasonally-differenced earnings (persistence). I present results that suggest: (1) a firm's future persistence is predictable on the basis of its past persistence; (2) the immediate stock-price response to earnings is positively related to historical persistence; (3) post-earnings-announcement drift is independent of historical persistence; and (4) consistent with (2) and (3), the difference between a firm's current observed persistence and that implied in stock prices is independent of its historical persistence. These results extend prior research by demonstrating that investors are aware not only that seasonally-differenced earnings are autocorrelated, but that investors recognize firm-specific differences in the magnitude of the autocorrelation.  相似文献   
148.
N. Vittal   《Futures》2004,36(6-7):781
India is a rich country in which poor people live, a big country which does not realise its own potential. India must build on its strengths and achieve its potential to become an economic superpower with a good and just society. A number of attitudinal and structural factors, such as lack of national pride, politics based on caste and other identities, a hierarchic and corruption-ridden feudal society and the tendency to reward failure and weakness rather than success and achievement are the major hurdles that are stopping us from achieving our true potential. On the other hand, our strengths in democratically managing a multi-ethnic, multi-cultural country and our capacity to master technology are also notable. Steps and hopeful developments that show the way forward to solve our national problems and realise the vision of a better India are suggested.  相似文献   
149.
150.
Regime Shifts in Asian Equity and Real Estate Markets   总被引:4,自引:0,他引:4  
This paper applies a new statistical technology for identifying regime shifts to analyze recent data on real estate and equity markets in eight developing Far Eastern countries in the 1992–1998 time period. We find that regime shifts in volatility occur in the summer of 1997; however, most of the regime shifts in returns occur in the spring of 1998. While the clustering of regime breaks does not seem to follow any obvious pattern, the country's exposure to trade and firm leverage are important. An analysis of Granger causality suggests that, in most cases, equity returns cause real estate returns but the converse is not true. We also find two-way causality in volatility, suggesting that a common factor drives volatility in these markets. Finally, we provide evidence that the regime shifts generally imply higher relative risk for real estate securities after the estimated breaks.  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