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   41865篇
  免费   816篇
  国内免费   1篇
财政金融   7596篇
工业经济   3053篇
计划管理   6821篇
经济学   9379篇
综合类   1299篇
运输经济   246篇
旅游经济   651篇
贸易经济   6203篇
农业经济   2014篇
经济概况   5340篇
邮电经济   80篇
  2021年   232篇
  2020年   407篇
  2019年   549篇
  2018年   730篇
  2017年   751篇
  2016年   684篇
  2015年   522篇
  2014年   825篇
  2013年   3984篇
  2012年   1094篇
  2011年   1213篇
  2010年   990篇
  2009年   1140篇
  2008年   1371篇
  2007年   1295篇
  2006年   1031篇
  2005年   972篇
  2004年   1026篇
  2003年   1145篇
  2002年   858篇
  2001年   919篇
  2000年   918篇
  1999年   737篇
  1998年   752篇
  1997年   729篇
  1996年   690篇
  1995年   648篇
  1994年   694篇
  1993年   742篇
  1992年   696篇
  1991年   691篇
  1990年   634篇
  1989年   527篇
  1988年   531篇
  1987年   515篇
  1986年   537篇
  1985年   771篇
  1984年   763篇
  1983年   746篇
  1982年   716篇
  1981年   659篇
  1980年   627篇
  1979年   647篇
  1978年   531篇
  1977年   495篇
  1976年   416篇
  1975年   384篇
  1974年   356篇
  1973年   342篇
  1972年   254篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
This article investigates the impact of spatially correlated unobservable variables on the refinancing, selling and default decisions of mortgage borrowers. Virtually the entire mortgage literature acknowledges that borrower-specific characteristics, such as culture, education or access to information, play an important role in mortgage termination decisions. While we do not observe these variables directly, we note that borrowers of similar background tend to cluster together in neighborhoods. We estimate a competing risks hazard model with random effects using a three-stage maximum likelihood estimation approach. We utilize the space-varying coefficient method to modify the covariance structure according to the spatial distribution of the observations. Beyond a significant improvement of the model performance, this yields a number of insightful implications for mortgage termination behavior. For instance, borrowers of the affluent "West Side" of Los Angeles County both refinance and move at a higher rate than predicted by the standard maximum likelihood estimation method. At the same time, borrowers from some lower-valued neighborhoods tend to stay longer than expected with their mortgages and properties.  相似文献   
993.
Firms around the globe are rushing to invest in sales force technology or sales force automation (SFA). SFA appears to mean different things to different people. For example, management and sales personnel view the need for, application of, and advantages of SFA quite distinctly. As a result of technology, this special issue examines many areas of sales force automation to provide both practicing managers and sales force academicians with a clearer perspective of new technology in the B2B marketplace. This article introduces the special issue topic, individual contributors, and acknowledges support proffered by myriad individuals.  相似文献   
994.
This study examines the contribution of Raymond J. Chambers to the British inflation accounting debate in the early‐to‐mid 1970s, from the perspective of the reception of his book, Securities and Obscurities: A Case for Reform of the Law of Company Accounts, published in 1973. To structure the empirical narrative, drawing on previously unpublished documents from the R. J. Chambers Archives, we employ Czarniawska and Joerges’ ( 1996 ) notion of the ‘travel of ideas’, and Mumford’s ( 1979 ) observation of the existence of ‘inflation accounting debate cycles’. The result is a narrative that traces the environmental and material circumstances that led to Chambers’ book having a lesser impact on the British inflation debate than one would expect based on the international exposure of his ideas, his influence at the time, and the empirical rigour of his proposal. The purpose of this exercise is to assess how contextual factors, such as the choice of publisher, use of promotional material, and distribution methods, can be as (or more) important than the substance of the proposed ideas, arguments, and solutions.  相似文献   
995.
996.
Forward‐looking partial moment volatility indices are developed using state‐pricing, called the bear index (BEX) and bull index (BUX). Using S&P 500 index (SPX) option prices, we find that BEX and BUX provide superior forecasts for the lower and upper partial moments of future market realised volatility, respectively. We examine the relation between SPX returns and changes in BEX and BUX at the daily level. Results are consistent with the volatility feedback hypothesis. Further, we show that BEX may be more suitable as the ‘investor fear gauge’ than VIX.  相似文献   
997.
Motivated by shareholders’ interest in combating executive wealth expropriation through the merger and acqusition (M&A) process, we study how mutual funds influence firm behavior around an acquisition through votes against management proposals. We find that mutual funds reduce the chief executive officer's ability to extract rents during the M&A process by voting against management‐sponsored compensation proposals after the acquisition, thus lowering both excess compensation and increasing pay‐for‐performance sensitivity. Furthermore, mutual fund voting magnifies the impact on negatively performing firms and firms with a larger amount of the mutual fund's holdings in the firm.  相似文献   
998.
We test the performance and interaction between earnings and price momentum for European real estate companies by first making use of decile portfolios sorted on the previous 3- to 12-month returns, standardized unexpected earnings and a combination of both. Then, the relation is tested on a risk-adjusted basis employing a 3-factor asset pricing model and Fama and Macbeth (1973) cross-sectional regression analyses. Our analyses reveal several critical findings: (1) both price and earnings momentum are effective for European firms, the effect being stronger for the UK than EU firms; (2) unlike U.S. REITs, price momentum seems to dominate drift for European firms; (3) there is weak evidence for positive interaction between drift and price momentum, contrary to the U.S. evidence; (4) the performance of momentum strategies depends on the state of the economy, while controlling for systematic factors; (5) idiosyncratic risk of real estate property firms may influence the returns on drift and momentum factors.  相似文献   
999.
We provide a novel test of information-based theories of price clustering by examining trade, order, and the National Best Bid and Offer (NBBO) quote price clustering during periods when information is removed from the market. We use a natural experiment of short-sale restrictions resulting from Securities and Exchange Commission (SEC) Rule 201 to more effectively determine the impact of information on price clustering. We find evidence of increased price clustering for trades, orders, and NBBO prices during short-sale restrictions. Overall, our findings indicate that short-sale restrictions harm the price discovery process and lead to a reduction in market efficiency.  相似文献   
1000.
This study examines how the specific attributes of one type of voluntary corporate governance mechanism, a specialized political contribution committee, improves the transparency of corporate political disclosure (CPD). The results demonstrate that the existence of a committee that establishes and reviews key political activities and disclosure policies, particularly one composed entirely of outside directors, significantly enhances the transparency of corporate political disclosure, and reveal that an under-studied board committee, the political contribution committee, effectively improves CPD transparency. The results are consistent with agency theory and further support the more generalizable idea that specialized governance mechanisms (e.g., a political contribution committee) and fully independent committees lead to more transparent disclosure. Finally, the results suggest that the existence of a political contribution committee and committee independence are channels to improve CPD transparency. Public-policy makers and regulators seeking to enhance CPD transparency might consider implementing regulations that mandate or recommend these governance mechanisms as best practice.  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