At the same time, protection—the demand for which was dramatically increased by the abolition of feudalism and the widespread introduction of private property rights—did not undergo the customary process of centralization to become the monopoly of the state. Unlike land, protection, according to standard political theory, is not supposed to find its way onto the marker; but in southern Italy It did.

XREF: Connects to the economics of private protection and the theory of state formation, relevant to mafia history literature and institutional economics.

Diego Gambetta, The Sicilian Mafia The Busi…, loc. 203