Hüseyin Sen is a full-time professor of public finance at Yıldırım Beyazıt University, where he is also the head of the Public Finance Department. His research interests are in public finance-public economics, fiscal policy, monetary policy, and development macroeconomics. He has recently co-authored the book entitled "Taxation Theory and Policy" (in Turkish). He has also some papers which have been published in the leading international journals.