"Our report represents the product of efforts to enhance the quality of African data. It provides details of a comparative analysis of data collection procedures by some international organizations that publish macroeconomic and social data on Africa. The essence is to identify similarities and differences in the data generating processes among the various organizations, in order to bring out the facts behind the (divergent) figures contained in the various publications. The analysis included Nigeria, which served as the case study for the report whose findings prompted this study. This will enable the comparison and the findings between national and international data publication sources. The remainder of the report is organized as follows. The next section discusses the background to this study, followed by a discussion of the methodology used in Section III. In Section IV a summary is provided of the study's findings, while the implications of the findings are elaborated upon in Section V. The last section presents the concluding remarks and recommendations."