OECD Working Papers on International InvestmentOECD Working Papers should not be reported as representing the official views of the OECD or of its member countries. The opinions expressed and arguments employed are those of the authors. Working Papers describe preliminary results or research in progress by the author(s) and are published to stimulate discussion on a broad range of issues on which the OECD works.The international investment working paper seriesincluding policies and trends and the broader implications of multinational enterpriseis designed to make available to a wide readership selected studies undertaken under the aegis of the OECD Investment