The effects of sector reforms on the productivity of Greek banks: a step-by-step analysis of the pre-Euro era. - Panagiotis Tziogkidis; Kent Matthews; Dionisis Philippas (Ann. Oper. Res., 2018)

A data envelopment analysis and local partial least squares approach for identifying the optimal innovation policy direction. - Panagiotis Tziogkidis; Dionisis Philippas; Alexandros Leontitsis; Robin C. Sickles (Eur. J. Oper. Res., 2020)