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Salaries of academic economists are studied to determine if individuals receive differential returns to publishing articles of varying quality and to coauthored versus single-authored articles. Estimates based on detailed data and a flexible nonlinear least-squares procedure indicate that substantial returns to quality exist and that an individual's return from a coauthored paper with n authors is approximately 1/n times that of a single-authored paper.
Raymond D. Sauer (Mon,) studied this question.