In all the hustle and bustle, it rather blew by that my friends Dr. Gregory Rose and Mark Lloyd have written this analysis of ten years of FCC spectrum auction data.
Summary — FCC auctions turn out to be great ways for incumbents to exclude new entrants and to bilk the government. They do not yield the promised efficiencies of distribution or even maximize revenue to the government. There are ways to improve the process, but the FCC open ascending auction systems just about ensures that a collection of incumbents can keep out any genuinely disruptive competitors and collude to minimize revenue to the government and maintain the status quo.