“…Other events or announcements that have the tendency of triggering volatility of the stock market include rail accidents (Walker et al, 2006), product and market diversification (Jones & Danbolt, 2005), mergers and acquisitions (Liang, 2013), punitive damages (Lott & Karpoff, 1998), new product introduction , stock split (Subaih, 2013), natural disasters (Maierhofer, 2011), awards (Bu & Tian, 2012), corporate press releases (Neuhierl et al, 2013), media and celebrity endorsements (Ding et al, 2011;Doukas, 2013) and supply chain disruptions (Hendricks & Singhal, 2008). The impact of most of these announcements or events on stock performance is usually firm-specific, industry-specific or geographic-specific.…”