“…Auction niche. Auctions are often framed as responses to the shortcomings of alternative instruments (e.g., [18,40]), but policy tools' cost-benefit profiles depend on factors like regulatory regime, property rights allocation, policy conflicts, and contract law [100,101,106,135]. Narloch et al [19,20] and Pirard [128] distinguish reverse auctions from other MBIs mainly on the basis of price discovery, disincentives to free-ride or rentseek, and transaction costs.…”