Estimating and predicting joint second-order moments of asset portfolios is of huge importance in many practical applications and, hence, modeling volatility has become a crucial issue in financial econometrics. In this ...

Technological innovation is the key driver for technological progress and firms’ economic growth. Since firms pursue different innovation approaches, they achieve different innovation performances. Actually, a firm’s ability ...

Nowadays, complex phenomena need to be analyzed through appropriate statistical methods that allow considering the knowledge hidden behind the classical data structure. Interesting innovations arise ...