*Kazushi Matsuo¹, Morito Tsutsumi¹, Toyokazu Imazeki² (1. Univ. of Tsukuba, 2. Commercial Property Research Institute, Inc.)

*Kristof Gyodi¹ (1. University of Warsaw)

Anil Kumar Bera¹, Dilek Durusu Ciftci², *Mustafa Serdar Ispir² (1. University of Illinois at Urbana Champaign, 2. Pamukkale University)

*Codruta Mare^1,2, Simona Laura Dragos³, Gabriela Mihaela Muresan³ (1. Babes-Bolyai University, Faculty of Economics and Business Administration, Dep. of Statistics-Forecasts-Mathematics, Cluj-Napoca, Romania, 2. Babes-Bolyai University, The Interdisciplinary Centre for Data Science, 3. Babes-Bolyai University, Faculty of Economics and Business Administration, Dep. of Finance, Cluj-Napoca, Romania)