全文获取类型
收费全文 | 3692篇 |
免费 | 137篇 |
专业分类
财政金融 | 814篇 |
工业经济 | 283篇 |
计划管理 | 514篇 |
经济学 | 706篇 |
综合类 | 27篇 |
运输经济 | 86篇 |
旅游经济 | 279篇 |
贸易经济 | 788篇 |
农业经济 | 61篇 |
经济概况 | 264篇 |
邮电经济 | 7篇 |
出版年
2024年 | 6篇 |
2023年 | 40篇 |
2022年 | 25篇 |
2021年 | 40篇 |
2020年 | 89篇 |
2019年 | 137篇 |
2018年 | 177篇 |
2017年 | 181篇 |
2016年 | 153篇 |
2015年 | 99篇 |
2014年 | 164篇 |
2013年 | 642篇 |
2012年 | 186篇 |
2011年 | 187篇 |
2010年 | 178篇 |
2009年 | 173篇 |
2008年 | 136篇 |
2007年 | 104篇 |
2006年 | 70篇 |
2005年 | 84篇 |
2004年 | 81篇 |
2003年 | 89篇 |
2002年 | 100篇 |
2001年 | 57篇 |
2000年 | 40篇 |
1999年 | 47篇 |
1998年 | 46篇 |
1997年 | 31篇 |
1996年 | 38篇 |
1995年 | 39篇 |
1994年 | 33篇 |
1993年 | 34篇 |
1992年 | 28篇 |
1991年 | 35篇 |
1990年 | 14篇 |
1989年 | 17篇 |
1988年 | 18篇 |
1987年 | 15篇 |
1986年 | 19篇 |
1985年 | 17篇 |
1984年 | 12篇 |
1983年 | 21篇 |
1982年 | 19篇 |
1981年 | 16篇 |
1980年 | 13篇 |
1979年 | 15篇 |
1978年 | 9篇 |
1977年 | 14篇 |
1973年 | 10篇 |
1971年 | 5篇 |
排序方式: 共有3829条查询结果,搜索用时 0 毫秒
91.
We model competition between content distributors (platforms) for content providers, and show that whether or not content is exclusive or “multihomes” depends crucially on whether or not content providers maintain control over their own pricing to consumers: if content providers sell their content outright and relinquish control, they will tend to be exclusive; on the other hand, if content providers maintain control and only “affiliate” with platforms, then multihoming is sustainable in equilibrium. We show that the outcome under affiliation depends on the tradeoff between platform rent extraction (which increases in exclusivity) and content rent extraction (which increases in multihoming), and demonstrate that the propensity for exclusivity can be increasing, decreasing, or even nonmonotonic in content quality. Finally, if a content provider internalizes the effect of its own price on platform demand, we prove that a platform that already has exclusive access to content may prefer to relinquish control over content pricing to the content provider in order to reduce price competition at the platform level. 相似文献
92.
The seasonal patterns observed on Monday stock returns are still unexplained by different asset pricing models. We attempt
to fill this gap in the finance literature by using the Fama-French (Journal of Financial Economics 33:3–56, 1993) risk factors to explain the Monday seasonal. The results in the study show that Monday returns are explained by risk factors
such as the market return, the size of the firms, and the book-to-market ratios of firms. 相似文献
93.
This study presents the nonlinear relationship that exists between financial development and economic growth. This study applies
the flexible nonlinear regression model of Hamilton (Econometrica 69(3):537–573, 2001) because it imposes no specification
restrictions. Two empirical results are obtained. First, an inverted U-shaped relation between banking sector development
and economic growth is identified. Namely, the two variables are positively linked before the turning point, but negatively
linked after it. Second, a positive relationship with asymmetric √-shape between stock market development and economic growth
is found. 相似文献
94.
We propose an alternative bivariate zero-inflated negative binomial (BZINB) regression model based on a copula. The empirical result shows that the proposed model performs better than the existing BZINB models in terms of the maximum log-likelihood and the AIC. 相似文献
95.
We study socio-ecological models for a fishing ground open to tourists. On Jeju Island, Korea, women traditional divers called “Haenyeo” harvest resources in a common fishing ground. To investigate the impact of introducing tourists on the benefit to the fishing association and the resource level, we examine two models that differ in the way the number of tourists is controlled. In the first model, the fishing association charges an entrance fee to tourists and the level of the fee is chosen to regulate tourist number. In the second, only a part of the fishing ground is made open to tourists, and the fraction of the ground open is chosen to control the tourist number. In both models, the fishing association seeks to maximize its total benefit. Analysis shows that the way the number of tourists increases with the availability of resources strongly influences the distribution of benefits among the fishing ground stakeholders. Finally, we discuss policy implications of our results and how local government can reduce the risk of introducing tourism. 相似文献
96.
97.
Lee KJ 《Medical economics》2011,88(12):34, 36-34, 38
98.
99.
100.
This study empirically examines the effect of a non-traditional information source, namely a firm's blog visibility on the capital market valuation of firms. After controlling for earnings, book value of equity and other value relevant variables, such as traditional media exposure, R&D spending, and advertising expense, we find a positive association between a firm's blog visibility and its capital market valuation. In addition, we find blog visibility Grange causes trading, not vice versa. Our findings indicate that non-traditional information sources such as blogs help disseminate information and influence consumers' investment decisions by capturing their attention. 相似文献