Comparative Research on Household Panel Studies PACO Document n° 27 2002 Assessing Income Distribution Using Kernel Estimates: A Comparative Study in Five European Countries by Christos Papatheodorou (a) , Paraskevi Peristera (b) , Anastasia Kostaki (b) (a) Institute of Social Policy, National Centre for Social Research, Athens, Greece. Also Department of Social Administration, Demokritus University of Thrace. (b) Department of Statistics, Athens University of Economics and Business.