Professor Johanna Hey is Vice President for International Affairs at the University of Cologne and is one of the most respected authorities on Tax Law in Germany. Johanna serves as Professor of Tax Law and Director of the Institute for Tax Law at the University of Cologne. She studied Law at the University of Würzburg and in Cologne and in 1996 received her Doctor Juris (Ph.D. equivalent) at the University of Cologne. Prior to her professorship in Cologne, she held the Chair for Business Taxation at Düsseldorf University in Germany. In 2007, she served as Senior Emile Noël Fellow at NYU Law School and was appointed as Global Professor in 2015. Johanna holds a Doctor Juris (Ph.D. equivalent) from the University of Cologne.