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货币供应量M2对中小板指数的影响研究

2021-07-14裴金成

裴金成

【摘  要】股票市场是实体经济的“晴雨表”,央行实施货币政策调控经济必然会影响到股票价格。论文研究货币政策中的货币供应量M2对股票市场中中小板指数的影响,运用向量自回归(VAR)模型,选用2007年1月至2020年9月的月度数据,发现货币供应量M2对中小板指数有一定的正向影响,并且存在长期均衡关系,中小企业板相较整个股市而言对货币供应量反应更大,但仍不明显。投资者可以短期内将货币供应量变动作为投资参考消息,政府则需要警惕股票市场的逐利性对货币政策效果的削弱影响。

【Abstract】The stock market is the "barometer" of the real economy. The implementation of monetary policy by the People's Bank of China will inevitably affect the stock price. This paper studies the influence of money supply M2 in monetary policy on the small and medium board index in the stock market. Using the vector autoregression (VAR) model and using the monthly data from January 2007 to September 2020, it finds that money supply M2 has a certain positive influence on the small and medium board index, and there is a long-term equilibrium relationship. The small and medium-sized enterprises board is more responsive to money supply than the stock market as a whole, but it is still not obvious. Investors can take the change of money supply as the reference information for investment in the short term, while the government needs to be alert to the weakening influence of profit-driven stock market on the effect of monetary policy.

【关键词】货币供应量;中小板指数;VAR模型;格兰杰因果;脉冲响应分析

【Keywords】money supply; small and medium board index; VAR model; Granger causality; impulse response analysis

【中图分类号】F832.5;F822.0;F224                                          【文献标志码】A                                              【文章编号】1673-1069(2021)06-0118-02

1 引言

中国股票市场规模庞大,扩张迅速,而且与国内宏观经济和全球经济状况紧密联系,影响巨大。央行在股市波动时会运用货币政策进行调节,所以货币政策对股票市场的影响一直是国内外学者关注的问题。根据国内已有的相关研究表明,央行货币政策对我国宏观经济影响是多方面多角度且效果不同的,但是大多数文献关注的是整个市场对货币政策的反应有效性情况,从而得出整体的结论,对于大盘的关注并不一定能代表其中的小盘,中小企业板走势可能有所不同,本文基于货币政策的货币供应量角度对代表小盘的中小企业板进行研究,较为直观地表现央行货币政策对于经济的中流砥柱中小型公司的影响情况,并结合其他文献的研究给予政府和投资者们一些建议。……

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