TITLE:
A Theoretical Study of Market Performance under Price Limits and Circuit Breakers in Chinese Stock Market
AUTHORS:
Xinhong Hu
KEYWORDS:
Circuit Breakers, Price Limits, Information, Investors, Liquidity
JOURNAL NAME:
Theoretical Economics Letters,
Vol.10 No.1,
February
27,
2020
ABSTRACT: The effectiveness of circuit breakers is widely
discussed in previous studies, but few of them distinguish between price limits
and market-wide circuit breakers. We develop a two-period Stackelberg game,
testing the behavioral change of informed and uninformed investors under
different circuit breakers. We find that informed investors become more
conservative and trade in smaller sizes
under circuit breakers, especially market-wide circuit breakers. But uninformed
investors trade quite oppositely. This behavioral change makes stock price less informative, and dominated by investor sentiment. We
also contribute the market crash in early January, 2016 to this behavioral
change.