as follows; First, there is a strong evidence that conditional mean and volatility spillovers between KOSDAQ50 index spot …

effects on volatility. Sequences are pairs of consecutive returns with the same sign and reversals pairs of consecutive … useful to analyze the effects on volatility of sequences and reversals. The empirical results show that General CHARMA is … more appropriate than GARCH in specifying volatility. Also, we obtain the results that pairs of consecutive returns with …

November 5, 2012 to curb excessive volatility and unfair trades, and thus promote efficient price discovery. There are two … reversals, increasing volatility and turnover after the halt period. These results mean that the price discovery function of the … temporary volatility and unfair trades, and it is needed to complement the mechanism …