Project team of Graduate School of Management, SPbU and Mathematics and Mechanics Faculty, SPbU: Irina Berezinets (project leader), Yulia Ilina, Dmitry Grigoriev, Nikolai Zenkevich and Ekaterina Sokolova have studied how new knowledge, skills and experience, obtained through the board interlocking, impact the efficiency of the directors activities in their role as monitors and resource providers, and through it, a performance of a company as a whole. The research was carried out as part of a grant from St. Petersburg University (ID: 60419345).