Performance of stock price with changes in SRI governance index

초록

We investigate the performance of the stock and volume effect associated with changes in the composition of the socially responsible investment (SRI) governance index during a period from 2003 to 2012. It turns out that, in the short term and long term, the announcement of inclusion in the SRI governance index has a positive effect in the stock market; however, exclusion from the SRI governance index has a negative effect. The price reversal phenomenon partly appears in the short term, and stock prices are increased again. The increase of stock prices in the short and long runs indicates a change in intrinsic value. The performance of stock prices in the short and long runs is positive (+); this is caused by the downward-sloping demand curve (DSDC). The trading volume for event periods is a little more than the current volume in trading volume analysis. Therefore, using these results, we can adopt the price pressure hypothesis, information hypothesis, DSDC hypothesis and liquidity hypothesis.

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