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   17237篇
  免费   20篇
财政金融   2729篇
工业经济   802篇
计划管理   2631篇
经济学   3973篇
综合类   482篇
运输经济   1篇
旅游经济   2篇
贸易经济   4612篇
农业经济   19篇
经济概况   1366篇
信息产业经济   44篇
邮电经济   596篇
  2024年   1篇
  2023年   4篇
  2022年   4篇
  2021年   14篇
  2020年   12篇
  2019年   23篇
  2018年   2313篇
  2017年   2067篇
  2016年   1231篇
  2015年   114篇
  2014年   121篇
  2013年   114篇
  2012年   474篇
  2011年   1964篇
  2010年   1854篇
  2009年   1543篇
  2008年   1539篇
  2007年   1882篇
  2006年   73篇
  2005年   400篇
  2004年   474篇
  2003年   562篇
  2002年   263篇
  2001年   69篇
  2000年   53篇
  1999年   5篇
  1998年   26篇
  1997年   2篇
  1996年   17篇
  1995年   3篇
  1994年   5篇
  1993年   3篇
  1992年   4篇
  1991年   2篇
  1990年   2篇
  1989年   1篇
  1988年   1篇
  1987年   1篇
  1986年   14篇
  1985年   1篇
  1981年   1篇
  1980年   1篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
In the spirit of methodology reviews for stock event studies, like the one prepared by Binder (Rev Quant Financ Account 11:111–137, 1998), this paper discusses the development of the event study methodology for corporate bonds since its first application with Katz (J Financ 29:551–559, 1974). The motivation to conduct this review stems from two sources: First, the methodology utilized for stocks cannot simply be applied to bonds, as bonds present several features that strongly distinguish them from stocks. An erroneous model could lead to false conclusions about the impact of new information on a firm’s debt. Second, the availability of new sources for bond data enables the application of bond event studies for an increasing number of research frameworks. Thus, future research ought to be interested in the selection of the proper methodology. Consequently, this paper illustrates past and present event study methods utilized to calculate abnormal bond returns and reviews the applied parametric and non-parametric test statistics. Besides, insight on how the availability of corporate bond data has evolved through the last four decades, as well as the impact on prevailing methodology is provided. Altogether, this paper provides a first extensive snapshot of the current bond event study methodology and offers guidance for future research.  相似文献   
992.
In this paper, we examine whether nominal stock price can help to explain the ex-dividend day anomaly where stock prices drop by less than the dividend amount on the ex-dividend date. We find that stocks with lower nominal prices have ex-dividend day price drops that are more consistent with theoretical predictions based on an efficient market. After controlling for factors that have been previously documented to influence ex-dividend day stock price behavior, price-drop-to-dividend ratios are closer to one for lower priced stocks. To further explore this phenomenon, we examine the change in the price-drop-to-dividend ratio around stock splits. Firms that split their shares have a larger price-drop-to-dividend ratio after the split, and companies that reverse split their shares have a smaller price-drop-to-dividend ratio after the split. Our evidence indicates that ex-dividend day stock price behavior is influenced by the nominal price of a share and that this relation could also influence the decision to split a firm’s shares.  相似文献   
993.
994.
Banner advertisements are either ignored or criticized and rarely receive clicks. However, companies tend to use consistent messages but vary the visual characteristics to entice clicks. This study examined 22,978 instances of banner placements measured in weeks from an insurance company in 2016. Results point to the 300 × 250 size, blue ads, and static design generating more clicks than larger sizes, red ads, and animated designs.  相似文献   
995.
Apps on smart devices such as phones and tablets have enabled financial services firms not only to provide greater convenience and flexibility to customers, but also to get them to do a lot of the work entailed in these services. This has changed the character of service in many ways, including the nature of service quality where service is no longer delivered by people, but by means of technology. The study reported here used an amended version of the SERVQUAL instrument to assess consumers’ perception of the quality of the service delivered by the apps of their financial services providers. Three dimensions of app service quality emerge: reliability, personal and visibles. Generally, consumers are reasonable satisfied with the quality of service provided by their financial apps and prefer them to visits to service providers physical locations and rate them as highly as online service provision on PCs or laptops. Limitations are acknowledged, managerial implications drawn and avenues for future research are identified.  相似文献   
996.
This paper aims to contribute to the universal discourse on financial services continuance behavior by examining the impact of service cost on customers’ service-quality perception and service continuance intention. It presents the results of an empirical study that has explored the impacts of service cost, service quality, and customer satisfaction on health insurance customers’ behavioral intention toward continuing or discontinuing with their service providers. Very few studies had examined the impact of service cost on service-quality perception. Our study attempts to fill that gap. A sample of 820 customers was surveyed, and 624 usable responses were analyzed with ANOVA, standard multiple regression, and logistic regression. Our findings indicate that, although highly satisfied health insurance customers will most likely retain their current service providers, customer dissatisfaction does not necessarily lead to discontinuance. Our results also provide some operational implications for health insurance managers, with strategies for reducing attrition and improving customer retention.  相似文献   
997.
The 2000s in equity markets are marked by two major regulatory shocks: RegNMS in the United States, and MiFID in the European Union. Simultaneously, there is a massive increase in the proportion of high-frequency trading, and market orders volume. However, trading volumes do not significantly increase. We propose a theoretical model describing the effects of stock markets fragmentation on two types of investors optimization problems: “intermediary” high-frequency and “final” investors. Volatility has a permanent and a transitory component, whose weights depend on market fragmentation via the share of non-marketable orders of intermediary investors. The trading volume of final investors depends on market fragmentation both directly via transaction costs, and indirectly via total volatility. Finally a shock in fragmentation may lead to a decrease in trading volume, enhanced in the case of an equity markets crisis by a rise in the components of volatility.  相似文献   
998.
999.
Private as well as statutory health insurers have various ways of insolvency. Although the Insolvency Act has been applied for statutory health insurance since 2010, these new options were not used up to now. Anyway, the legislators laid the preference out of closure. This article investigates how the priority of closure could be in contradiction to the applicability of the Insolvency Act. It is asked, whether the introduction of the insolvency capability of health insurance funds was rather to assimilate the frame conditions relating to pension promises than creating a real alternative. One reason could be, that the Insolvency Act is not only generally applicable in the liquidation of a health insurance fund, but potentially even the best alternative. The insolvency proceedings for example are advantageous for health insurance funds within the same group because the maximum load is split and lower than it would be by a closure by social law and in addition to that the PSV is obligatory. The results show, that the generally-accepted, not limited standard preference of closure as laid out by the legislators in § 171b (3) S. 2 SGB V, seems inexplicable. The paper draws parallels to private health insurance companies under Solvency II and opens up new perspectives for legislative measures.  相似文献   
1000.
The assessment of future mortality is of high importance in many areas where the allocation of future resources has to be planned in time, especially in social security and private life insurance. This contribution represents an extension of the classic forecasting approaches of Bell–Monsell and Lee–Carter. Based on a forecast of the first two principal components, age- and sex-specific survival probabilities for 18 Western European countries are predicted simultaneously until the year 2070. In addition to the correlations in the mortality trends between the age groups and the genders, international trends in mortality are captured as well. A major improvement in the classic Lee–Carter models is the adequate quantification of the uncertainty associated with the whole system of variables by stochastic simulation of all remaining principal components with simple time series models. The model’s easy applicability to further analyses is illustrated by forecasting the median life span as well as the resulting Gender Gap for Germany, France, and Italy.  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