首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 203 毫秒
1.
市场气氛假说认为市场状态和二级市场投资者的投机是造成新股抑价的重要因素,且新股上市首日抑价率与市场气氛之间呈现正相关关系。以市场气氛假说对全流通时期A股206支IPO新股抑价程度进行实证分析,发现在市场指数上涨期间,上市首日换手率、上市首日股指收益率、上市当周股指收益率为影响IPO抑价的显著变量,且具有与假设相符的正相关关系,表明市场气氛假说可以说明A股全流通时期的IPO首日抑价现象。  相似文献   

2.
ARCH族模型对具有时变波动性、厚尾性和波动聚集性的时间序列有很好的拟合效果.本文对上证可转债指数收益率运用ARCH族模型、Granger因果关系检验和ECM模型进行定量分析,研究结果显示:上证可转债指数收益率序列是平稳的,但是存在高阶ARCH效应;TARCH模型证明了利好利空信息对收益率的影响是非对称但不具有杠杆效应的;股票市场与可转债市场之间存在着单向波动溢出效应,且两个市场的收益率之间存在着长期均衡关系.在以上研究结果的基础上提出相关建议,希望对可转债市场的健康发展有所裨益.  相似文献   

3.
研究通货膨胀率、中房上海综合指数收益率、广义货币增速以及上海股票综合指数收益率之间是否存在稳定的长期均衡关系,对于应对通胀具有重要的理论与现实意义。通过建立相关模型所进行的实证分析结果显示,在1999年10月至2003年3月的样本观察期,股票指数收益与通货膨胀率之间存在长期协整关系,且股票价格上涨会导致国内物价水平的降低;在2003年4月至2009年9月的样本观察期,中房指数收益率与国内物价水平间建立起稳定的长期均衡关系,房地产市场价格的持续上升会引致国内通货膨胀率的明显提高,影响程度为19.60%。责是之故,为降低通胀预期和未来可能出现的高通货膨胀,平抑房地产价格的大幅攀升就不失为一项合意的经济调控策略。  相似文献   

4.
IPO抑价一直是我国IPO最显著的特征,但是抑价水平是否真的一直居高不下?影响抑价率的因素又有哪些?文章利用抑价率来衡量抑价水平,并对可能的影响因素如市场指数(深圳成指)变化率、募集资金总额、摊薄发行市盈率、发行费用、发行总股数、网上配售中签率和上市首日换手率进行实证分析,得出影响IPO抑价的主要原因,并对解决我国IPO抑价问题提出参考性建议。  相似文献   

5.
运用计量经济学基本手段,设立相关模型,对我国消费者信心指数和股票市场收益率进行了单位根检验、granger因果分析、VAR回归分析。得出我国消费者信心指数granger因果影响股票市场的收益率,而滞后的股市收益率和消费者信心指数存在着负的相关关系,脉冲分析表明,消费者信心指数对股市收益率的扰动具有较长时期的滞后。  相似文献   

6.
以创业板首批28家上市公司为研究样本,选择修正的F-O模型,利用上市公司的实际盈利数据和分析预测数据,对上市公司IPO定价前的内在价值进行测算,据此分析创业板上市公司IPO定价的效率。研究结果发现,样本创业板上市公司的IPO价格高于其内在价值50%以上,创业板IPO市场存在明显的溢价发行现象。该研究结论对于提高我国创业板IPO市场的定价效率具有重要的理论价值和现实意义。  相似文献   

7.
正由于IPO重启后新股的持续发行,A股承受抽血的阵痛,随着IPO高峰期的到来和过去,大盘在2000点附近盘底和企稳可能性加大,由于二月份新股发行压力大幅减少,春节前大盘出现企稳及小幅反弹的可能性加大。创业板指数离前高1423.96就一步之遥,从市场热点看,市场对科技小盘股偏好仍是市场主流,美国  相似文献   

8.
随着全球经济一体化的快速发展,国内能源市场和国际能源市场之间的联系日益加深,市场间的相互关系和波动溢出效应受到监管部门和研究者的广泛关注.以中证能源指数、中证内地新能源主题指数和WTI原油日收盘价的对数收益率序列为研究对象,运用多重分形消除趋势波动分析方法研究国内传统能源市场、新能源市场和国际能源市场之间的相互关系及波动特征.实证结果表明,3个市场之间的交互关系存在多重分形性,且新能源和传统能源之间交互关系的多重分析性最强,意味着国内能源市场是一个低效市场,市场的波动受到市场外的因素影响较大.同时指明,序列的胖尾分布是造成多重分形性的主要原因.  相似文献   

9.
我国股市上首次公开发行股票(Initial Public Offering,简称IPO)的长期收益率问题一直是IPO领域研究的热点问题之一。发达国家证券市场存在IPO长期弱势已经得到实证的检验,而我国证券市场成立较晚,尚不成熟,信息披露不健全,同时也具有与发达国家证券市场不同的特征。因此,借鉴国外学者研究成果,对提高我国IPO市场理论及效率有着深远的意义。  相似文献   

10.
正在IPO重启压力下,大盘出现了持续调整,沪指更是逼近2000点关口,短期看由于IPO发行数量较大,对市场资金面的抽血效应较为明显,如无政策面利好对冲或减缓IPO发行,估计大盘弱势要持续到一月底。另一方面由于市场资金短缺,小盘股表现强于大盘股,非周期类板块强于周期类板块,创业板指数逆市上扬,在周三达到了1423高点,离创历史高点仅一步之遥,不排除未来有创新高的可能。从近期市场表现看医药消费及TMT小盘概念股逆势走强,网络游戏和信息安全成为是热点,这种趋势有望延续,仍可重点  相似文献   

11.
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.  相似文献   

12.
风的曲线     
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.  相似文献   

13.
Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.  相似文献   

14.
汉字倒说     
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。  相似文献   

15.
《海外英语》2007,(5):44-45
It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,  相似文献   

16.
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language.  相似文献   

17.
钱生钱!     
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了  相似文献   

18.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.  相似文献   

19.
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex.  相似文献   

20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号