Abstract
In this paper we studied impact of an
exogenous event that represents China’s capital market opening up policy: the “A-share
inclusion in the MSCI index” for China’s domestic Stock
assets. By constructing the Diff in Diff (DID) model, it is found that event
have significantly reduce the idiosyncratic risk of the stocks that have been
included into the index, which proved that the overall advantages of the
capital market opening up policy outweigh the disadvantages.
Keywords: Capital market
opening up, Idiosyncratic risk, Liquidity.