RePEc (Research Papers in Economics) offers the RePEc Author Service (RAS). It allows registrants to claim
authorship of the research papers that are described in RePEc archives. The data from this service forms a highquality authorship database. We use this data to examine, as a practical example, how different network
constructions affect the ranking of economists through authorship centrality. We use Spearman's rho test for evaluating the correlation between author centrality measures
