Corporate R&D intensity and high cash holdings: post-crisis analysis. - Efstathios Magerakis; Konstantinos Gkillas; Christos Floros; George Peppas (Oper. Res., 2022)

Time-varying firm cash holding and economic policy uncertainty nexus: a quantile regression approach. - Christos Floros; Emilios Galariotis; Konstantinos Gkillas; Efstathios Magerakis; Constantin Zopounidis (Ann. Oper. Res., 2024)