                          *   **   ***                                               !        "      !                                   # $% $ &!% % ’% ’% (% " &!% &% )  * #  +,-.                /                       1 This article presents results realized in the project “Modelarea comportamentului economic observat pe baz de experiment prin metoda tiinei complexitii. Studiu de caz Bursa de valo- ri Bucureti”, Code of the project IDEI_ 829, no. 271 / 01.10.2007, CNCSIS, PNII/IDEI * Barry HARRISON, Professor PhD., Nottingham Business School, Nottingham Trent University, United Kingdom, radu.lupu@rei.ase.ro. ** Radu LUPU, Associate professor, PhD, Department of International Business and Economics, Bucharest Academy of Economic Studies, Romania, radu.lupu@rei.ase.ro. *** Iulia LUPU, researcher, PhD candate, “Victor Slavescu” Center for Financial and Monetary Research, Romanian Academy of Science, Romania, radu.lupu@rei.ase.ro.