Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Using laboratory experiments, we compare the stability of bidding rings in the first-price sealed-bid auction and the English auction in a heterogeneous-value setting. In both a re-matching condition and a fixed-matching condition, we observe that bidding rings are more stable in the English auction than in the first-price sealed-bid auction. In both conditions, the first-price sealed-bid auction dominates the English auction in terms of average revenue and the revenue spread. The English auction outperforms the first-price sealed-bid auction in terms of efficiency.