This study examines the contemporaneous return transmission mechanism across the G20 stock market returns employing a novel R-Square (R2) connectedness framework combining the network approach of Kenett et al. (2010, 2015) and the connectedness approach of Diebold and Yilmaz (2012, 2014). The...

The study examines returns spillover, shock, and volatility transmission between Nigeria and selected global stock markets over the period January 2000 to August 2021 using a diagonal BEKK-AMGARCH model. Results show that the Nigerian stock market exhibits characteristics of inefficiency, as...

The advantage of quantum mechanics to shift up the ability to econometrically understand extreme tail losses in financial data has become more desirable, especially in cases of Value at Risk (VaR) and Expected Shortfall (ES) predictions. Behind the non-novel quantum mechanism, it does...