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1.
This study examines why most derivatives markets that settle on the day following expiration choose the opening rather than the closing price as the final settlement price (FSP), whereas most markets that settle on the expiration day select an average rather than a single price as the FSP. Four exogenous changes in the Taiwan Futures Exchange settlement procedures provide an experimental basis for studying the settlement procedures’ impact on underlying assets. Greatest market efficiency is observed when the FSP is determined by a single rather than an average price and hypothesize that manipulation is prevented at the expense of market quality. 相似文献
2.
We examine the effect of media coverage on firm-level investment efficiency. We find that media coverage reduces under-investment but increases over-investment. The negative effect of media coverage on under-investment is more pronounced in firms affected by greater information asymmetry and poorer corporate governance. The positive effect of media coverage on over-investment is driven by media-induced CEO overconfidence. Additional results show that both investment- and non-investment-related news coverage decrease under-investment, while non-investment-related news coverage is more influential in increasing over-investment. In general, higher news optimism is associated with less under-investment but more over-investment. Moreover, media coverage affects investment efficiency through its information dissemination rather than information creation function. Collectively, our results suggest that firms’ media visibility promotes more over-investment than under-investment. 相似文献
3.
Cristian A. Pinto‐Gutirrez 《Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l\u0027Administration》2019,36(3):432-449
This paper examines the role of media coverage and investor attention on the outcomes of seasoned equity offerings (SEOs). I use an archive of Thomson Reuters news articles to proxy for firm visibility and investor attention. I find that the volumes of news articles prior to the offerings are positively associated with the offer price discounts of SEOs. Furthermore, the volumes of news articles are negatively associated with the cumulative abnormal returns three days around the SEOs. I conclude that the costs of equity increase with media coverage prior to SEOs. Overall, the evidence is consistent with the hypothesis that media coverage affects investors' information processing in SEOs. Copyright © 2018 ASAC. Published by John Wiley & Sons, Ltd. 相似文献
4.
一种根据规划放线验线成果修测地形图的方法——内业修测法,它可以及时反映城市地形地物的变化,保持地形图的现势性,较之传统的修测方法省时、省力、经济。 相似文献
5.
Statistical inference based on the Weibull distribution, a distribution widely used in reliability and survival analysis,
is usually difficult as it often involves numerical computation and approximation. However, this distribution can be transformed
to near-normality by a simple power transformation. Based on this transformation, a prediction interval (PI) for its median
can be easily constructed through an inverse transformation. The procedure for selecting the best power transformation through
minimizing Kullback-Leibler information is described. The property of this transformation-based PI is investigated. Simple
correction factors are also proposed. It is shown that the transformation-based PI with corrections performs well, irrespective
of the sample size and parameter values. Simulation results show that the new PI generally outperforms the existing PI. Numerical
examples are given for illustration. 相似文献
6.
Gregory S. Amacher Erkki Koskela Markku Ollikainen 《Bulletin of economic research》2005,57(4):391-405
We use a vertical product differentiation model under partial market coverage to study the social welfare optimum and duopoly equilibrium when convex costs of quality provision are either fixed or variable in terms of production. We show the following new results. First, under fixed costs, the social planner charges a uniform price for the single variant that just covers costs of quality provision. Like the duopoly equilibrium, this socially optimal pricing entails a partially uncovered market, but a smaller share of the market is served compared with the duopoly equilibrium. Second, for the variable cost case, it is socially optimal to provide both high‐ and low‐quality variants, but market shares need not be equal. This differs from the result in fully covered markets. Third, in the duopoly equilibrium, the quality spread is too wide under variable costs relative to the social optimum. Under fixed costs, the duopoly produces two variants, but quality is too low relative to the social optimum, which has only one variant. 相似文献
7.
8.
先进的循环经济文化模式构建分析 总被引:4,自引:1,他引:4
从循环经济与循环经济文化的关系入手,探讨了循环经济文化的不同层次,提出了构建先进循环经济文化模式的路径选择,即培育循环经济文化观,倡导绿色生产观,弘扬绿色消费观。 相似文献
9.
我国中小旅行社的数量众多,但其产品却存在着较多的问题.中小旅行社要生存发展,必须从产品方面入手改革,才能在巨大的竞争对手面前提高自己的竞争实力. 相似文献
10.
在委托代理理论和协同理论框架下,选取2007—2017年中国A股国有上市公司为研究样本,实证检验社会审计质量对国企资产保值增值的影响以及社会审计与国家审计影响国企资产保值增值的替代效应。研究发现:高质量的社会审计有利于促进国企资产保值增值;社会审计与国家审计在促进国企资产保值增值中发挥了替代效应,而且这种替代效应主要体现在高质量的社会审计可以有效缓解国家审计扩大监督范围广度、提高目标实现深度与加强“监”的力度等方面的压力,但不会影响国家审计“督”的力度。研究结论对于国家审计机关合理利用社会审计资源、构建协同高效的审计监督体系、实现国企审计全覆盖、促进国企资产保值增值具有启示意义。 相似文献