Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
In this paper, we present the primal characterizations of the technologies that are consistent with capital aggregation. These characterizations are dual to the profit function restrictions obtained by Gorman and complete the closed-form production function restrictions obtained by Fisher. We use the result to solve a problem recently posed by Fisher. In addition, we pose and solve a natural extension of the usual capital aggregation problem.