Hardcover. Cambridge MA, Harvard University Press, 1st, 1996, Book: Very Good, Dust Jacket: Very Good, Hardcover in a bright dust jacket, 335 pages. In a society where trust is in short supply and democracy weak, the Mafia sells protection, a guarantee of safe conduct for parties to commercial transactions. Drawing on the confessions of eight Mafiosi, Diego Gambetta develops an elegant analysis of the economic and political role of the Sicilian Mafia. Clean copy.