The "Challenges of international trade and investment in the 21st century" edited by Zoltan Vig is a collection of studies, and it is a joint publication of the Department of Private International Law and Department of Commercial Law, Faculty of Law, Ankara Yıldırım Beyazıt University, the Department of Private International Law, Faculty of Law, University of Szeged, and the Doctoral School of Legal Sciences, State University of Moldova.