is zambia contracting dutch disease massimiliano calì and dirk willem te velde working paper 279 results of odi research presented in preliminary form for discussion critical comment overseas development institute february 2007 111 westminster bridge road london se1 7jd uk ii isbn 978 0 85003 841 5 all rights reserved no part this publication may be reproduced stored a retrieval system or transmitted any by means electronic mechanical photocopying recording otherwise without the prior written permission publishers iii acknowledgements we are indebted to sheila page detailed comments on an earlier version chiwama musonda support data collection process thanks also go chris stevens simon maxwell genevieve matthews remaining errors ours iv abstract recent large increase price copper has had substantial impact dependent economies such as applies traditional framework effects natural resource revenues analyse extent which current