Wojciech Kopczuk Professor of Economics Columbia University Roles Researchers Email [email protected] Wojciech Kopczuk is a Professor of Economics and of International and Public Affairs, Department of Economics at Columbia University. Projects How to Tax Family Firms Joel Slemrod, Wojciech Kopczuk 31 Dec 2011 Project All contributions Taxation and Family Firms (Working Paper) Wojciech Kopczuk, Joel Slemrod Working paper Taxation and Family Firms (Policy Brief) Wojciech Kopczuk, Joel Slemrod Policy brief Share Share