For the meeting of the Association d'Instituts Européens de Conjoncture Economique (AIECE) in May, Klaus-Jürgen Gern, Christophe Kamps, and Joachim Scheide prepared the General Report. It is now published as Kiel Discussion Paper 376/377 and supplemented by the country notes of other AIECE...

This paper investigates the differences between directly and indirectly seasonally adjusted aggregates. This difference is derived analytically for linear seasonal adjustment methods. GDP data for five European countries and three classes of seasonal adjustment methods are used to show...