| 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. |