Zarządzanie zespołami wirtualnymi i międzykulturowa współpraca [Management of IT virtual teams and cross-cultural collaboration] Guangyan (Panny) Luo (Doctoral School - Management, KSZiRO, PWr, Wrocław) Nowadays IT virtual teams are characterized, among others, by high level of cultural diversity, which often mitigates the performance of the team. Cross-cultural collaboration became an important issue in the field of team management. The presentation concerns the progress of PhD study concerning the management of IT virtual teams. The theoretical model was already developed and it offers insights concerning the elements, which are able to boost IT virtual teams performance. The presentation concerns the application of the research results into the selected company.