全文获取类型
收费全文 | 6652篇 |
免费 | 1311篇 |
专业分类
财政金融 | 1269篇 |
工业经济 | 558篇 |
计划管理 | 1377篇 |
经济学 | 1470篇 |
综合类 | 25篇 |
运输经济 | 149篇 |
旅游经济 | 303篇 |
贸易经济 | 1829篇 |
农业经济 | 316篇 |
经济概况 | 662篇 |
邮电经济 | 5篇 |
出版年
2024年 | 12篇 |
2023年 | 34篇 |
2022年 | 25篇 |
2021年 | 124篇 |
2020年 | 255篇 |
2019年 | 664篇 |
2018年 | 408篇 |
2017年 | 523篇 |
2016年 | 469篇 |
2015年 | 453篇 |
2014年 | 470篇 |
2013年 | 991篇 |
2012年 | 496篇 |
2011年 | 453篇 |
2010年 | 405篇 |
2009年 | 319篇 |
2008年 | 295篇 |
2007年 | 240篇 |
2006年 | 191篇 |
2005年 | 177篇 |
2004年 | 153篇 |
2003年 | 136篇 |
2002年 | 131篇 |
2001年 | 113篇 |
2000年 | 80篇 |
1999年 | 50篇 |
1998年 | 32篇 |
1997年 | 26篇 |
1996年 | 27篇 |
1995年 | 22篇 |
1994年 | 22篇 |
1993年 | 18篇 |
1992年 | 14篇 |
1991年 | 20篇 |
1990年 | 11篇 |
1989年 | 9篇 |
1988年 | 11篇 |
1987年 | 12篇 |
1986年 | 5篇 |
1985年 | 7篇 |
1984年 | 7篇 |
1983年 | 8篇 |
1982年 | 3篇 |
1981年 | 5篇 |
1980年 | 7篇 |
1979年 | 10篇 |
1978年 | 3篇 |
1977年 | 5篇 |
1976年 | 3篇 |
1975年 | 3篇 |
排序方式: 共有7963条查询结果,搜索用时 375 毫秒
991.
We analyze credit watch and rating actions to better understand the role of credit watches in the credit rating process. We find that watch actions are more frequently prompted by specific, publicly known events than are rating actions. The likelihood that a watch action precedes a rating action varies systematically with proxies for investor demand for credit quality information and the adverse consequences of issuing a rating change prematurely. Credit watches occur more often in response to deterioration in credit quality, and issuers make concerted efforts to address the concerns that prompted down watches. Down watches are less likely than up watches to indicate the direction of the subsequent rating change. Watch announcements are associated with abnormal stock returns, indicating that credit watch actions are significant information events. Our results suggest that credit watches are informative and facilitate the stability of ratings by allowing firms to correct deficiencies and prevent downgrades. 相似文献
992.
We examine how the cost of equity changes when firms are added to or removed from the S&P 500 Index during index revisions. Newly added firms experience a significant decline in the cost of equity, while recently removed firms show a significant increase. Liquidity improves for addition firms and declines for removed firms. Addition firms also experience a decline in shadow cost. Changes in cost of equity for included firms are explained by changes in liquidity, shadow cost, and firm size. Finally, included firms with greater investment opportunities benefit more from the reduction in cost of capital. 相似文献
993.
CHIH‐NAN CHEN TSUTOMU WATANABE TOMOYOSHI YABU 《Journal of Money, Credit and Banking》2012,44(8):1507-1533
Central banks react even to intraday changes in the exchange rate; however, in most cases, intervention data are available only at a daily frequency. This temporal aggregation makes it difficult to identify the effects of interventions on the exchange rate. We apply the Bayesian Markov‐chain Monte Carlo (MCMC) approach to this endogeneity problem. We use “data augmentation” to obtain intraday intervention amounts and estimate the efficacy of interventions using the augmented data. Applying this new method to Japanese data, we find that an intervention of 1 trillion yen moves the yen/dollar rate by 1.8%, which is more than twice as much as the magnitude reported in previous studies applying ordinary least squares to daily observations. This shows the quantitative importance of the endogeneity problem due to temporal aggregation. 相似文献
994.
This article analyzes the impact of policy form regulation on the unit price of insurance and determinants of premium changes using the 1994 deregulation of the German property–liability market as a natural experiment. Our result show that policy form regulation did not increase prices above competitive levels. Factors influencing premium changes are significantly different for the two time periods, pre‐ and post‐deregulation, indicating that regulation affects insurance pricing. Focusing on highly competitive lines after deregulation, we find a significant price decrease, and this decrease is offset by higher prices in the remaining other lines. 相似文献
995.
This article proposes a framework for measuring and managing systemic risk. Current solvency regulations have been criticized for their focus on individual firms rather than the system as a whole. We show how an insurance program can be designed to deal with systemic risk through a risk charge on participating institutions. The risk charge is based on the generalized co‐conditional tail expectation, a conditional risk measure adapted from conditional value‐at‐risk. Current regulations have been criticized on the grounds that their capital requirements are procyclical. They require extra capital in periods of extreme stress thus exacerbating a crisis. We show how to construct a countercyclical risk charge and illustrate the approach using a numerical example. 相似文献
996.
We study whether a firm's name affects investor attention and firm valuation. Some Chinese firms listed on US stock exchanges have the word “China” included in their company names (“China‐name stocks”), while others do not (“non‐China‐name stocks”). During the 2007 China stock market boom, we find that China‐name stocks significantly outperform non‐China‐name stocks. This is not due to differences in firm characteristics, risk, or liquidity. The “China‐name effect” is largely consistent with the investor attention hypothesis that price pressure caused by increased investor attention on China‐name stocks during the boom period drives up China‐name stocks more than non‐China‐name stocks. 相似文献
997.
The generosity of public pensions may depress private savings and provide incentives to retire early. While there is plenty of evidence supporting the latter effect, there remains considerable controversy over whether public pensions crowd out private savings. This paper uses international micro‐data sets collected over recent years to investigate whether public pensions displace private savings. The identification strategy relies not only on cross‐country differences in generosity but also on differences in the progressivity or non‐linearity of pension formulas across countries. We estimate that an extra dollar of pension wealth depresses accumulated financial assets around the time of retirement by 22 cents. An extra 10,000 dollars in public pension wealth reduces the average retirement age by roughly one month, which implies an elasticity of years of retirement with respect to pension wealth of 0.15. 相似文献
998.
The emergence of the gold standard has for a long time been viewed as inevitable. We analyze agents' expectations using the spread between gold and silver bonds issued by the Indian government. We find that bimetallism was credible until France surprised markets by suspending domestic operation of bimetallism, triggering a run away from silver. Thereafter, markets began demanding a premium to hold silver bonds, indicating their belief that silver would depreciate in the future as more countries moved on gold. 相似文献
999.
Les études précédentes indiquent que les analystes n’ajustent pas totalement leurs évaluations en fonction du biais général à la baisse des annonces de résultats prévisionnels faites par les directions d’entreprises. Les auteurs rapportent les résultats de deux expériences visant à déterminer comment la feuille de route des entreprises en ce qui a trait à la publication de résultats prévisionnels et les enjeux motivant les analystes expliquent de concert la mesure dans laquelle ces derniers ajustent leurs évaluations en fonction du biais des annonces de résultats prévisionnels. Ces résultats d’expérience semblent indiquer que les analystes pour qui l’enjeu est celui de l’exactitude ajustent leurs évaluations selon la feuille de route de la direction en ce qui a trait à la publication de résultats prévisionnels biaisés à la baisse lorsque le biais est relativement modeste (un cent), mais que les analystes pour qui l’enjeu est celui de leur relation avec la direction s’en abstiennent. Au surplus, la différence dans l’ajustement est plus importante lorsque la feuille de route de l’entreprise en matière de biais est irrégulière que lorsqu’elle est régulière. Aussi, lorsque le biais des annonces de résultats prévisionnels est plus important que moins (deux cents par rapport à un cent), les analystes pour qui l’enjeu est celui de la relation avec la direction procèdent à un ajustement partiel, paraissant ainsi rechercher un équilibre entre exactitude et volonté de plaire à la direction. Ces constatations ont des répercussions pour les investisseurs, les autorités de réglementation et l’interprétation des études précédentes. 相似文献
1000.
Although smuggled cigarettes have been a prevalent problem and a severe challenge to public health and welfare around the world, little is known about the behavior associated with smoking smuggled cigarettes and the issue is difficult to study due to data limitations. By means of a population‐based tobacco survey conducted in Taiwan, the present paper applies a latent class model to identify potential smokers who are either currently or will at some point in the future be consuming smuggled cigarettes. This methodology, in contrast to the traditional discrete models, allows potential smokers who are more inclined to smoke smuggled cigarettes to be endogenously classified. The empirical results indicate that socio‐demographic factors do increase the inclination to smoke smuggled cigarettes after unobserved heterogeneity has been accounted for. 相似文献