سرریز نوسانات داخل - روزانه در بازارهای بین المللی سهام
|کد مقاله||سال انتشار||مقاله انگلیسی||ترجمه فارسی||تعداد کلمات|
|45538||2015||20 صفحه PDF||سفارش دهید||11286 کلمه|
Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Journal of International Money and Finance, Volume 53, May 2015, Pages 95–114
Using a novel four-phase model based upon a conditional autoregressive Wishart framework for realized variances and covariances we quantify intra-daily volatility spillovers within and across the US, German and Japanese stock markets before and during the subprime crisis. We find significant short-term spillovers from one stock market to the next-trading market, which have substantially intensified during the crisis indicating a global volatility contagion coming from the US market. The strongest contagion with the largest burst of spillover effects from and to foreign markets is observed for the Japanese market, which was prior to the crisis fairly uncoupled from the German and US market. We also find that the crisis leads to a significant reduction of the general persistence of volatility shocks in international stock markets. Hence, it appears that during the turmoil of the crisis news generating volatility become outdated more quickly than before the crisis.