全文获取类型
收费全文 | 30438篇 |
免费 | 575篇 |
专业分类
财政金融 | 5542篇 |
工业经济 | 2239篇 |
计划管理 | 5159篇 |
经济学 | 6892篇 |
综合类 | 322篇 |
运输经济 | 189篇 |
旅游经济 | 497篇 |
贸易经济 | 4680篇 |
农业经济 | 1453篇 |
经济概况 | 3968篇 |
邮电经济 | 72篇 |
出版年
2021年 | 174篇 |
2020年 | 293篇 |
2019年 | 399篇 |
2018年 | 559篇 |
2017年 | 565篇 |
2016年 | 526篇 |
2015年 | 390篇 |
2014年 | 608篇 |
2013年 | 2938篇 |
2012年 | 822篇 |
2011年 | 875篇 |
2010年 | 698篇 |
2009年 | 860篇 |
2008年 | 888篇 |
2007年 | 793篇 |
2006年 | 737篇 |
2005年 | 686篇 |
2004年 | 688篇 |
2003年 | 677篇 |
2002年 | 623篇 |
2001年 | 635篇 |
2000年 | 620篇 |
1999年 | 533篇 |
1998年 | 546篇 |
1997年 | 520篇 |
1996年 | 524篇 |
1995年 | 465篇 |
1994年 | 507篇 |
1993年 | 530篇 |
1992年 | 491篇 |
1991年 | 516篇 |
1990年 | 475篇 |
1989年 | 393篇 |
1988年 | 402篇 |
1987年 | 398篇 |
1986年 | 417篇 |
1985年 | 595篇 |
1984年 | 549篇 |
1983年 | 556篇 |
1982年 | 527篇 |
1981年 | 467篇 |
1980年 | 459篇 |
1979年 | 464篇 |
1978年 | 398篇 |
1977年 | 359篇 |
1976年 | 284篇 |
1975年 | 277篇 |
1974年 | 256篇 |
1973年 | 246篇 |
1972年 | 201篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
Dominic Gasbarro Kim‐Song Le Robert G. Schwebach J. Kenton Zumwalt 《The Journal of Financial Research》2004,27(1):133-141
Announcements of syndication loans increase borrowers' shareholder wealth if they are revolving credit agreements but not if they are term loans. Share price responses to revolving credit announcements are positive and significant, whereas the wealth effect for term loans is negative and significant. The results show that announcements from both the financial press and commercial information providers can affect borrower share price reaction. Overall, single syndication announcements appear to be more newsworthy than multiple announcements reported in the financial press, and we find evidence of information leakage, post‐announcement drift, or both. 相似文献
42.
In this paper we investigate the effect of golden parachute (GP) adoptions on shareholder wealth. We control for the potential effect a GP adoption has on the probability that a firm will receive a takeover bid by investigating the wealth effects for firms that are in play when the GP is adopted. We find that announcements are wealth neutral when firms are in play and wealth increasing when firms are not in play when a GP is adopted. The results suggest that GPs have no influence on the success of a tender offer, refuting the hypotheses that they either align manager and shareholder interests or that they entrench inefficient managers. The difference in the results for in-play and not-in-play firms is consistent with the hypothesis that GPs signal an increased likelihood that a firm will receive a takeover bid. 相似文献
43.
Great variation in nursing resource use is documented within DRGs. Much of this variation may be explained by patient severity of illness. Variance in nursing resource use within DRGs can be reduced by using a severity of illness instrument to score patients. 相似文献
44.
45.
This paper discusses the statistical issues that arise in conducting an economic damages analysis in the context of a litigation matter involving copyrights. Calculating damages in copyright cases turns out to be a natural application for econometric modelling methods. Surprisingly, elementary statistical issues can be a source of significant debate between the experts in such matters. In this paper, we present a case study and illustrate how issues such as interpretation of p -values and what "rejection of the null hypothesis" really "means" in such matters. 相似文献
46.
Portfolio value‐at‐risk (PVAR) is widely used in practice, but recent criticisms have focused on risks arising from biased PVAR estimates due to model specification errors and other problems. The PVAR estimation method proposed in this article combines generalized Pareto distribution tails with the empirical density function to model the marginal distributions for each asset in the portfolio, and a copula model is used to form a joint distribution from the fitted marginals. The copula–mixed distribution (CMX) approach converges in probability to the true marginal return distribution but is based on weaker assumptions that may be appropriate for the returns data found in practice. CMX is used to estimate the joint distribution of log returns for the Taiwan Stock Exchange (TSE) index and the associated futures contracts on SGX and TAIFEX. The PVAR estimates for various hedge portfolios are computed from the fitted CMX model, and backtesting diagnostics indicate that CMX outperforms the alternative PVAR estimators. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:997–1018, 2006 相似文献
47.
48.
This paper examines the impact of announcements of dividend changes by bank holding companies (BHCs) on equity returns. Many empirical studies of dividend behavior reveal positive market responses to dividend increases, which have been interpreted as confirmation of the signalling theory of dividend behavior. These studies typically focus on “large” changes, however. We argue that BHCs allow for a stronger test of signalling theory because regulatory monitors, in effect, “certify” dividend signals. Consequently, even “small” dividend increases should result in positive abnormal equity returns. Using the event study methodology, our results generally confirm this hypothesis for a sample covering the period 1973–1987. 相似文献
49.
This paper models the demand for stockbrokers' services in Australia, consisting of two related services, agency trades and principal trades. The relationship between agency and principal trades is estimated. The results indicate that the two services are complements rather than substitutes. Using unique accounting information, a model of agency and principal trading activities is estimated to determine the welfare effects of (i) deregulating brokerage commissions and (ii) a ban on principal trading by brokers. The results show a sizeable welfare gain to investors (amounting to about 60% of the gross revenue of brokers) stemming from deregulation of the minimum charge for agency trades. The loss in profitability by brokers due to deregulation is also computed and shown to be negligible. The results also show that due to complementarity, a ban on principal trading, even with deregulation of agency trading, can impose an arbitrarily high cost on investors which could, in principle, offset the gains from agency deregulation. 相似文献
50.
Despite the fact that international technology transfer has been widely studied its management still encounters many difficulties. To fully understand the issues that are relevant to the process of transferring production technology, it is necessary to determine the important factors that influence this process. Learning curves are often used as a means of determining the time required to become familiar with a transferred technology. The cases discussed in this paper have all employed learning curves, which were established at the outset of the transfer process and which turned out to be incorrect. As a consequence the envisaged efficiencies were not obtained. This phenomenon is partly due to the fact that when technology is transferred to a relatively inexperienced 'destination company', the curve is established based on the circumstances of the 'source company'. The case study findings lead to the conclusion that to establish a realistic curve a more comprehensive method is required than simply basing anticipated performance on that achieved at the source company. 相似文献