Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
I. Introduction, 25.— II. The basic model, 27.— III. Determination of the level of investment in a mean variance model, 32. — IV. Choice of technique, 47. — V. Remarks on alternative models of market equilibrium, 52.— VI. Concluding remarks, 55. — Appendix, 57.