基于PIN值的信息不對稱對滬市流動性影響研究
本文關(guān)鍵詞:基于PIN值的信息不對稱對滬市流動性影響研究 出處:《哈爾濱理工大學》2013年碩士論文 論文類型:學位論文
【摘要】:信息不對稱普遍存在于各國的股票市場且不可避免,是股票市場的最重要特性之一,近年采用高頻數(shù)據(jù)對金融市場的信息不對稱性進行研究成為金融定量研究領(lǐng)域的一個熱點。流動性是股票市場的基本功能之一,是衡量股票市場健康程度的重要指標。鑒于信息不對稱和流動性對股票交易的重要性,本文對滬市股票市場信息不對稱水平及其對流動性影響進行研究。 通過對信息不對稱水平度量指標PIN的研究來認識滬市的信息不對稱水平,從定量的角度研究信息交易概率PIN值與市場流動性指標的數(shù)量伴隨關(guān)系,發(fā)現(xiàn)信息不對稱對股票市場總體的影響,可以減少逆向選擇風險和促進股票市場良性發(fā)展。本文理論部分對國內(nèi)外股票市場信息不對稱和流動性水平的度量方法進行比較,以確定本文采用的度量方法。模型分析部分首先對EKOP模型的市場假設和模型原理進行系統(tǒng)分析以驗證所采用模型在我國股票市場的適用性。實證研究部分,選擇滬市股票市場為研究對象,選取上證50指數(shù)中具有代表性的12只股票作為樣本,然后用PIN指標和流動性L指標對樣本股票的交易情況所代表的信息不對稱水平和流動性水平進行量化。最后對度量信息不對稱水平的PIN指標和流動性L指標進行相關(guān)性和回歸分析,,得到滬市股票市場信息不對稱水平和流動性正相關(guān),并且信息不對稱水平的升高會帶來流動性的增加的結(jié)論。 本文旨在通過對滬市股票市場信息不對稱水平對流動性影響的研究,分析滬市股票市場信息不對稱水平現(xiàn)況和其與流動性的關(guān)系,達到為股票市場投資者和研究者提供理論支持以及實際決策參考的目的。
[Abstract]:Information asymmetry is one of the most important characteristics of stock market. In recent years, the use of high-frequency data to study the information asymmetry of financial markets has become a hot spot in the field of quantitative financial research. Liquidity is one of the basic functions of the stock market. In view of the importance of information asymmetry and liquidity to stock trading, this paper studies the level of information asymmetry and its influence on liquidity in Shanghai stock market. Through the study of the information asymmetry level measurement index PIN to understand the information asymmetry level of Shanghai stock market, from the quantitative perspective to study the quantitative relationship between the information transaction probability PIN value and the market liquidity index. Find out the impact of asymmetric information on the stock market as a whole. It can reduce the risk of adverse selection and promote the healthy development of stock market. This paper compares the measurement methods of asymmetric information and liquidity level of stock market at home and abroad. In order to determine the measurement method adopted in this paper, the model analysis part firstly systematically analyzes the market hypothesis and the model principle of the EKOP model to verify the applicability of the model in the stock market of our country. . Shanghai stock market is chosen as the research object, and 12 representative stocks in the Shanghai 50 index are selected as samples. Then the information asymmetry level and liquidity level represented by the trading situation of the sample stock are quantified by using PIN index and liquidity L index. Finally, the PIN index and liquidity L which measure the asymmetric level of information are quantified. Correlation and regression analysis were carried out. It is concluded that the asymmetric level of information is positively related to liquidity in Shanghai stock market, and the increase of asymmetric level of information will lead to the increase of liquidity. The purpose of this paper is to analyze the current situation of asymmetric information level in Shanghai stock market and its relationship with liquidity by studying the effect of information asymmetry level on liquidity in Shanghai stock market. It can provide theoretical support and practical decision reference for investors and researchers in stock market.
【學位授予單位】:哈爾濱理工大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:F832.51
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