2013年
Market-wide price co-movement around crashes in Tokyo stock exchange
Evolutionary and Institutional Economic Review
- ,
- ,
- 巻
- 10
- 号
- 1
- 開始ページ
- 81
- 終了ページ
- 92
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.14441/eier.A2013005
- 出版者・発行元
- JAPAN ASSOCIATION FOR EVOLUTIONARY ECONOMICS
As described in this paper, we study market-wide price co-movements around crashes by analyzing a dataset of high-frequency stock returns of the constituent issues of Nikkei 225 Index listed on the Tokyo Stock Exchange for the three years during 2007–2009. Results of day-to-day principal component analysis of the time series sampled at the 1 min time interval during the continuous auction of the daytime reveal the long range up to a couple of months significant auto-correlation of the maximum eigenvalue of the correlation matrix, which express the intensity of market-wide co-movement of stock prices. It also strongly correlates with the open-to-close intraday return and daily return of Nikkei 225 Index. We also study the market mode, which is the first principal component corresponding to the maximum eigenvalue, in the framework of Multi-fractal random walk model. The parameter of the model estimated in a sliding time window, which describes the covariance of the logarithm of the stochastic volatility, grows before almost all large intraday price declines of less than −5%. This phenomenon signifies the upwelling of the market-wide collective behavior before the crash, which might reflect a herding of market participants.
- リンク情報
- ID情報
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- DOI : 10.14441/eier.A2013005
- ISSN : 1349-4961
- CiNii Articles ID : 130003364764