全文获取类型
收费全文 | 42887篇 |
免费 | 861篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 8220篇 |
工业经济 | 3139篇 |
计划管理 | 7254篇 |
经济学 | 9694篇 |
综合类 | 473篇 |
运输经济 | 239篇 |
旅游经济 | 669篇 |
贸易经济 | 6590篇 |
农业经济 | 2073篇 |
经济概况 | 5252篇 |
邮电经济 | 146篇 |
出版年
2021年 | 238篇 |
2020年 | 431篇 |
2019年 | 566篇 |
2018年 | 761篇 |
2017年 | 804篇 |
2016年 | 750篇 |
2015年 | 555篇 |
2014年 | 860篇 |
2013年 | 4058篇 |
2012年 | 1151篇 |
2011年 | 1224篇 |
2010年 | 1021篇 |
2009年 | 1195篇 |
2008年 | 1172篇 |
2007年 | 1110篇 |
2006年 | 1002篇 |
2005年 | 929篇 |
2004年 | 911篇 |
2003年 | 939篇 |
2002年 | 867篇 |
2001年 | 866篇 |
2000年 | 909篇 |
1999年 | 763篇 |
1998年 | 781篇 |
1997年 | 765篇 |
1996年 | 757篇 |
1995年 | 707篇 |
1994年 | 757篇 |
1993年 | 747篇 |
1992年 | 729篇 |
1991年 | 783篇 |
1990年 | 678篇 |
1989年 | 561篇 |
1988年 | 589篇 |
1987年 | 566篇 |
1986年 | 600篇 |
1985年 | 850篇 |
1984年 | 820篇 |
1983年 | 771篇 |
1982年 | 771篇 |
1981年 | 717篇 |
1980年 | 668篇 |
1979年 | 690篇 |
1978年 | 591篇 |
1977年 | 491篇 |
1976年 | 428篇 |
1975年 | 425篇 |
1974年 | 363篇 |
1973年 | 372篇 |
1972年 | 297篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
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
62.
Abstract. We experimentally investigate the effects of a mandatory increase in education on the market for professional labor services when several service qualities are assumed to exist. We show that when suppliers have insufficient incentives to offer high-quality services in a free market, an increase in mandatory education can improve the coordination of supplier decisions and increase efficiency. If suppliers voluntarily provide a sufficient quantity of high-quality services, an education constraint can have the opposite effect. In both instances, however, an increase in the mandatory level of education can be expected to reduce the price of high-quality services while increasing the price of lower service qualities. Résumé. Les auteurs ont procédé à une analyse expérimentale des conséquences qu'aurait une hausse imposée du niveau d'études sur le marché des services professionnels, si l'on suppose l'existence de plusieurs qualités de services. L'analyse démontre que lorsque les stimulants sont insuffisants pour inciter les fournisseurs à offrir des services professionnels de qualité supérieure dans un marché libre, une hausse imposée du niveau d'études peut améliorer la coordination des décisions des fournisseurs et augmenter l'efficience. Si toutefois les fournisseurs offrent de leur propre chef une quantité suffisante de services de qualité supérieure, le fait d'imposer un niveau d'études supérieur peut avoir l'effet contraire. Dans les deux cas, on peut s'attendre à ce qu'une hausse du niveau d'études obligatoire réduise le prix des services de qualité supérieure tout en augmentant le prix des services de qualité plus faible. 相似文献
63.
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
64.
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
65.
66.
67.
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
68.
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
69.
An individual's tendencies in purely personal relationships seem to lead to related tendencies in consumer relationships. The following article presents a study that illustrates how individual differences in personal relationship attachment style can be used to predict the likely success of consumer relationships. In addition, it illustrates how the success of consumption versus nonconsumption relationships can be explained by the effect of attachment style on the individual's perception of qualities of the relationship. © 2006 Wiley Periodicals, Inc. 相似文献
70.