Co-Authorship and the Measurement of Individual Productivity

Discussion Papers on Business and Economics, University of Southern Denmark, 17/2015

27 Pages Posted: 5 Mar 2016

See all articles by Karol Szwagrzak

Karol Szwagrzak

University of Southern Denmark, Department of Business and Economics

Rafael Treibich

University of Southern Denmark - Department of Business and Economics

Date Written: December 23, 2015

Abstract

Consider a database of academic papers where each paper has a scientific worth and a group of authors. We propose a new way of measuring individual academic productivity by evaluating authorship, the extent of an author's contribution to each paper. Our method, CoScore, uses the varying levels of success of all academic partnerships to infer, simultaneously, overall individual productivity and authorship: the worth of a paper is distributed proportionally to each co-author's productivity, defined as the sum of her contributions to all papers. The CoScores of all authors are determined endogenously via the solution of a fixed point problem. We show that CoScore is well-defined and that it is uniquely characterized by three properties: consistency, invariance to merging papers, and invariance to merging scholars. We illustrate CoScore for the two thousand most cited papers in economics.

Keywords: Authorship, Co-authorship network, Ranking methods, PageRank

JEL Classification: D70, D71, D89

Suggested Citation

Szwagrzak, Karol and Treibich, Rafael, Co-Authorship and the Measurement of Individual Productivity (December 23, 2015). Discussion Papers on Business and Economics, University of Southern Denmark, 17/2015, Available at SSRN: https://ssrn.com/abstract=2741594 or http://dx.doi.org/10.2139/ssrn.2741594

Karol Szwagrzak (Contact Author)

University of Southern Denmark, Department of Business and Economics ( email )

Campusvej 55
DK-5230 Odense, 5000
Denmark

Rafael Treibich

University of Southern Denmark - Department of Business and Economics ( email )

DK-5230 Odense
Denmark

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