首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   33篇
  完全免费   1篇
  财政金融   34篇
  2018年   2篇
  2017年   1篇
  2016年   1篇
  2015年   1篇
  2014年   1篇
  2013年   2篇
  2012年   4篇
  2011年   1篇
  2009年   1篇
  2008年   4篇
  2007年   4篇
  2006年   3篇
  2005年   1篇
  2004年   1篇
  2003年   2篇
  2002年   1篇
  2000年   1篇
  1999年   1篇
  1996年   1篇
  1994年   1篇
排序方式: 共有34条查询结果,搜索用时 15 毫秒
1.
2.
沪深权证价格偏离分析   总被引:5,自引:0,他引:5  
沪深证券市场权证理论价格与权证市场价格的偏离现象主要不是理论定价公式的输入变量误差导致的,而是因为股票收益率与权证收益率之间的相关系数与理论预期不一致,乃至相冲突所导致的。权证理论价格与市场价格偏离的主要原因是在当前的交易制度安排下,由于市场限制(摩擦)抑制了套利交易,导致权证市场投机交易占主导,以致权证市场价格偏离长期均衡水平。  相似文献
3.
We consider the equilibrium in a capital asset market where the risk is measured by the absolute deviation, instead of the standard deviation of the rate of return of the portfolio. It is shown that the equilibrium relations proved by Mossin for the mean variance (MV) model can also be proved for the mean absolute deviation (MAD) model under similar assumptions on the capital market. In particular, a sufficient condition is derived for the existence of a unique nonnegative equilibrium price vector and derive its explicit formula in terms of exogeneously determined variables. Also, we prove relations between the expected rate of return of individual assets and the market portfolio.  相似文献
4.
Portfolio Optimization under Lower Partial Risk Measures   总被引:2,自引:0,他引:2  
Portfolio management using lower partial risk (downside risk) measures is attracting more attention of practitioners in recent years. The purpose of this paper is to review important characteristics of these riskmeasures and conduct simulation using four alternative measures, lower semi-variance, lower semi-absolute deviation, first order below targetrisk and conditional value-at-risk.We will show that these risk measures are useful to control downside risk whenthe distribution of assets is non-symmetric. Further, we will propose a computational scheme to resolve the difficultyassociated with solving a large dense linear programming problems resulting from these models. We will demonstrate that this method can in fact solve problems consisting of104 assets and 105 scenarios within a practical amount of CPU time.  相似文献
5.
基于投资者心理偏差的资产定价研究框架   总被引:1,自引:0,他引:1  
不断出现的资产收益可预测性现象逐渐动摇了研究者对投资者完全理性假设的信心,运一聂鬲心理研究成果引入资产定价领域,假设投资者有限理性和存在实际决策偏差,基于投资者心理偏差的资产定价模型从不同角度将资本市场中出现的异常现象与投资者的行为联系起来。回顾近几年资产定价理论研究的转变,对资产定价理论的最新研究成果及其理论基础进行总结和评述.以期进一步明晰研究发展方向和促进资产定价理论发展。  相似文献
6.
Stock Return Volatility and Dividend Announcements   总被引:1,自引:1,他引:0  
This paper is based on models presented in Kim and Verrecchia (1991a, 1991b) relating to share price volatility and the quality of announcements. It investigates the differences in informational quality between dividend cuts and dividend rises, and between interim and final dividend announcements. The results indicate that when dividends are cut, the interim announcement is perceived as being more significant than the final, whereas the reverse is true when dividends are increased. Implied standard deviations suggest that volatility is expected to peak on the day of final announcements. A peak is also expected after interim announcements of a cut in dividend, but not after announcements of an increase.  相似文献
7.
对上证50交易型开放式指数证券投资基金的实证研究   总被引:1,自引:0,他引:1  
邹平  张文娟 《上海金融》2008,75(4):60-64
本文在借鉴国内外相关文献的基础上,对上证50交易型开放式指数证券投资基金(上证50ETF)的市场表现进行了实证研究。研究结果表明,上证50ETF在我国运行以来的市场表现是相对稳定的,其收益基本实现了对上证50指数的复制;但两收益率之间也存在跟踪误差,上证50ETF的管理费和股利分配是造成这种跟踪误差的重要原因。其次,对上证50ETF折、溢价水平的定量分析则表明上证50ETF较成功的套利机制保证了其二级市场价格的有效性,并且该价格的变动与上证50ETF的折溢价水平密切相关;但套利和折、溢价水平并不能有力地解释上证50ETF二级市场的交易量。三者虽然密切联系,但后者显然还与其他很多因素有关。  相似文献
8.
We propose statistical tests for deciding between two alternatives for diffusion processes observed continuously over a finite time interval. Our tests emphasize the large deviation aspects, or equivalently, the asymptotic behavior of probabilities of type I and type II errors and the rate at which these probabilities go to zero as the observation time increases. We obtain these rates using direct methods of calculation. We provide specific computational examples for diffusion processes commonly used in finance and show that the error probabilities for these cases go to zero exponentially fast. Applications in finance and economics are discussed.  相似文献
9.
This study examines the lead/lag relationship between currency option and currency spot markets for the Deutsche mark and the Japanese yen. Using intraday currency option transactions data for the year 1989 and applying a European type currency option pricing model, pair data series of the implied and the observed exchange rates are compiled. Causality tests are then employed to test the causal relation between the observed and the implied exchange rate changes. The results indicate that the currency spot market leads the currency option market by about ninety minutes.  相似文献
10.
This paper provide a large-deviations approximation of the tail distribution of total financial losses on a portfolio consisting of many positions. Applications include the total default losses on a bank portfolio, or the total claims against an insurer. The results may be useful in allocating exposure limits, and in allocating risk capital across different lines of business. Assuming that, for a given total loss, the distress caused by the loss is larger if the loss occurs within a smaller time period, we provide a large-deviations estimate of the likelihood that there will exist a sub-period of the future planning period during which a total loss of the critical severity occurs. Under conditions, this calculation is reduced to the calculation of the likelihood of the same sized loss over an initial time interval whose length is a property of the portfolio and the critical loss level.Received: March 2003Mathematics Subject Classification: 60F10, 91B28, 91B28JEL Classification: G21, G22, G33Amir Dembo is with the Department of Statistics, Stanford University. His research was partially supported by NSF grant #DMS-0072331. Jean-Dominique Deuschel is with the Department of Mathematics, Technische Universität, Berlin. His research was partially supported by DFG grant #663/2-3 and DFG FZT 86. Darrell Duffie is with the Graduate School of Business, Stanford University. We are extremely grateful for research assistance by Nicolae Gârleanu and Gustavo Manso, for conversations with Michael Gordy, and for comments from Michael Stutzer, Peter Carr, David Heath, and David Siegmund.  相似文献
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