This chapter uses the FEM algorithm of artificial intelligence (AI) to analyze the rule of investor sentiment contagion under “informational cycle cascade”. There are five big up or down phases of investor sentiment contagion for the industry average at the whole period. Bad information...

This study examines the connectedness of firm-level online investor sentiment using Dow Jones Industrial Average constituent stocks. Leveraging two proxies of online textual sentiment, namely news media and social media sentiment, we investigate sentiment connectedness at two levels: frequency...

This study investigates the safe-haven properties of different asset classes during periods of geopolitical risk in Türkiye and examines their comovement with the Geopolitical Risk Index. The research covers the period from January 2010 to January 2023 and employs wavelet coherence analysis and...