This collaborative research study provides the overall perspective on the role of FDI in eco- nomic development the strategies and policies adopted the issues nature and scope of FDI the economic effects of FDI and the emerging sources of FDI for the SEACEN countries. Drawing on the findings in eight country studies the study concludes that given favorable economic social and political environment in the host country FDI has contributed indirectly to positive economic effects in terms of output growth employment and exports. And to improve the flow of FDI into economic development of the SEACEN region more is needed especially changes in FDI policies and macroeconomic conditions. Policy reforms designed to attract investors will only be marginally effective unless accompanied by appropriate macroeconomic policies. Marginal isolated policy changes are not enough.