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   634篇
  免费   31篇
财政金融   161篇
工业经济   50篇
计划管理   151篇
经济学   103篇
综合类   3篇
运输经济   6篇
旅游经济   14篇
贸易经济   91篇
农业经济   31篇
经济概况   55篇
  2021年   6篇
  2020年   6篇
  2019年   12篇
  2018年   13篇
  2017年   21篇
  2016年   17篇
  2015年   14篇
  2014年   14篇
  2013年   77篇
  2012年   29篇
  2011年   25篇
  2010年   32篇
  2009年   19篇
  2008年   26篇
  2007年   17篇
  2006年   19篇
  2005年   12篇
  2004年   14篇
  2003年   20篇
  2002年   8篇
  2001年   15篇
  2000年   17篇
  1999年   17篇
  1998年   14篇
  1997年   9篇
  1996年   14篇
  1995年   10篇
  1994年   10篇
  1993年   7篇
  1992年   4篇
  1991年   11篇
  1989年   8篇
  1988年   8篇
  1987年   5篇
  1986年   5篇
  1984年   4篇
  1983年   4篇
  1982年   4篇
  1980年   6篇
  1979年   6篇
  1978年   5篇
  1977年   4篇
  1975年   5篇
  1958年   5篇
  1955年   6篇
  1954年   4篇
  1948年   5篇
  1947年   4篇
  1946年   3篇
  1945年   5篇
排序方式: 共有665条查询结果,搜索用时 31 毫秒
651.
Measuring consumer-based brand authenticity   总被引:1,自引:0,他引:1  
Postmodern consumers use brands to create an authentic self and to reconnect to place, time, culture and others. Although previous research has identified that consumers draw on a range of cues in order to attribute authenticity to branded objects, no scales exist to measure the construct of brand authenticity. Building on the existing literature, this paper uses quantitative methods to develop a psychometrically robust measure of brand authenticity from a consumer's perspective. Findings demonstrate convergent, discriminant and predictive validity, whereby 14 items represent three interrelated first order factors labeled quality commitment, sincerity and heritage that correspond with a higher order brand authenticity construct. This study extends our understanding of the consumption of authenticity. Moreover, it provides a tool by which firms can evaluate the effectiveness of strategic decisions designed to deliver an authentic brand offering to consumers. Limitations and directions for future research are discussed.  相似文献   
652.
653.
Using a panel of all 50 U.S. states and the District of Columbia from 1990 to 1999, we report a nonlinear relation between state bankruptcy exemptions and new business formation. The rate of new business formation first increases as exemptions increase, but it then decreases. This result reflects the fact that bankruptcy exemptions tend to affect both demand for and supply of external financing to potential entrepreneurs.  相似文献   
654.
We make three related contributions. First, we propose a new technique for solving prediction problems under asymmetric loss using piecewise-linear approximations to the loss function, and we establish existence and uniqueness of the optimal predictor. Second, we provide a detailed application to optimal prediction of a conditionally heteroscedastic process under asymmetric loss, the insights gained from which are broadly applicable. Finally, we incorporate our results into a general framework for recursive prediction-based model selection under the relevant loss function.  相似文献   
655.
656.
657.
This paper studies the importance of heterogeneous beliefs for the dynamics of asset prices. We focus on currency markets, where the absence of short-selling constraints allows us to perform sharper tests of theoretical predictions. Using a unique data set with detailed information on foreign-exchange forecasts, we construct an empirical proxy for differences in beliefs. We show that this proxy has a strong effect on the implied volatility of currency options beyond the volatility of macroeconomic fundamentals. We document that differences in beliefs impact also on the shape of the implied volatility smile, on the volatility risk-premiums, and on future currency returns.  相似文献   
658.
Complex networks are constructed to study correlations between the closing prices for all US stocks that were traded over two periods of time (from July 2005 to August 2007; and from June 2007 to May 2009). The nodes are the stocks, and the connections are determined by cross correlations of the variations of the stock prices, price returns and trading volumes within a chosen period of time. Specifically, a winner-take-all approach is used to determine if two nodes are connected by an edge. So far, no previous work has attempted to construct a full network of US stock prices that gives full information about their interdependence. We report that all networks based on connecting stocks of highly correlated stock prices, price returns and trading volumes, display a scalefree degree distribution. The results from this work clearly suggest that the variation of stock prices are strongly influenced by a relatively small number of stocks. We propose a new approach for selecting stocks for inclusion in a stock index and compare it with existing indexes. From the composition of the highly connected stocks, it can be concluded that the market is heavily dominated by stocks in the financial sector.  相似文献   
659.
We estimate the union premium for young men over a period of declining unionization (1980–87) through a procedure which identifies the alternative sources of the endogeneity of union status. While we estimate the average increase in wages resulting from union employment to be in excess of 20% we find that the return to unobserved heterogeneity operating through union status is substantial and that the union premium is highly variable. We also find that the premium is sensitive to the form of sorting allowed in estimation. Moreover, the data are consistent with comparative advantage sorting. Our results suggest that the unobserved heterogeneity which positively contributes to the likelihood of union membership is associated with higher wages. We are unable, however, to determine whether this is due to the ability of these workers to extract monopoly rents or whether it reflects the more demanding hiring standards of employers faced by union wages. © 1998 John Wiley & Sons, Ltd.  相似文献   
660.
We use Bayesian structural time series (BSTS) methodology to test whether the Wall Street Reform and Consumer Protection Act of 2010 (DF) caused changes in community bank business models. The BSTS methodology uses the pre-DF period to create synthetic counterfactuals for community-bank dependent variables of interest. In the post-DF period, the counterfactuals become predictions of the dependent variables had DF not been enacted. Comparing post-DF predicted versus actual dependent variables allows us to estimate the causal impact of DF on these variables of interest. We find that relative to assets, community banks significantly reduce their lending activities and significantly increase investment in securities and excess reserves.  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