Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
I. The need for a study based on wage contracts, 601. — II. Hypotheses on structural differences, 503. — III. Data and methodology, 505. — IV. Estimates of the wage equations, 510. — V. Negotiated wage increases and the guideposts, 513. — VI. Conclusions, 516. — Appendix: calculation of the wage changes series for General Motors, 517.