Before revision:  We also study the utility threshold policy in an unbalanced matching market with heavy-tailed matching utilities , and find that the buyers and sellers have the same asymptotically optimal utility threshold  .
After revision:  We also study the utility threshold policy in an unbalanced matching market with heavy-tailed matching utilities , and find that the buyers and sellers have the same asymptotically optimal utility threshold . We derive optimal thresholds when the matching utility distribution is exponential, uniform, Pareto, and correlated Pareto. We find that as the right tail of the matching utility distribution gets heavier, the threshold level of each policy (and hence market thickness) increases, as does the magnitude by which the utility threshold policy outperforms the population threshold policy .