Elhanan Helpman is Professor of Economics at Harvard University, the Archie Sherman Chair Professor of International Economic Relations in the Eitan Berglas School of Economics at Tel-Aviv University, and a Fellow at the Canadian Institute for Advanced Research. Paul Krugman is Professor of Economics and International Affairs at Princeton University and a New York Times columnist. He was awarded the Nobel Prize for Economics in 2008.
"""A brilliant success... This book, like its predecessor, will be taken for granted as shared background in future scholarly discussion of the issues it treats. Robert E. Lucas, Jr. , Journal of Political Economy ""An excellent summary of the basic ideas on trade policy under conditions of imperfect competition. Not only does it provide a good guide to what has been happening in this area of research, but it also organizes the variety of models in such a way as to furnish the reader with rich insights."" Konstantine Gatsios , Economica"