摘要
文章以上海证券交易所全部A股的日交易数据为样本,研究发现我国股市存在明显的系统流动性,且与发达市场相比,影响更显著;按样本股流通市值进行分组检验,发现2006年以前我国股市存在"倒U"形流动性规模效应,而随后的检验期内无明显规律可循;进一步对其影响因素的研究,发现系统流动性变化存在周内效应,市场风险、市场走势和长短期利差等都是重要的影响因素,并且随着时间的推移,其变化表现出更多的独立性。
This paper uses daily transaction data of all A- share stocks in Shanghai Stock Exchange to examine systematic liquidity, and finds that compared with New York Stock Exchange and Hong Kong Securities Exchange, Chinese stock market has more significant commonality in liquidity, and that the systematic liquidity shows an inverted "U shape" before 2006. Finally, we find that market risk, market behavior and yield spread are important factors that affect the systematic liquidity, and in recent years, the liquidity behaves more independent than before.
出处
《财经科学》
CSSCI
北大核心
2008年第4期30-36,共7页
Finance & Economics
基金
上海财经大学211项目
关键词
系统流动性
市场微观结构
规模效应
Systematic Liquidity
Market MicroStructure
Size Effect