The papers published in this book were presented and dis- cussed on occasion of the celebration of Albert Kervyn de Lettenhove's retirement on 29-30 May 1986. This conference was made feasible through the participation of a large au- dience and the generous financial support of the Commission of the European Communities. The sessions were organised under three topics, as are the papers in this book. The first session, chaired by Massimo Russo, Director-General, Commission ofthe European Com- munities was devoted to an evaluation of past and current debates of central macro-economic problems,...