Libero Grassi - (2018)

: This research compares Sicilian extortion ( pizzo ) with practices in Mexico. It discusses the symbolic dimension of extortion—not just as money, but as an authority claim—which is exactly what Grassi challenged by publishing his "Dear Extortionist" letter in 1991.

: This paper traces the evolution of anti-Mafia movements , contrasting Grassi’s isolated fight with modern consumer-driven resistance like "pizzo-free" shopping. The 2018 Media Legacy Libero Grassi (2018)

(published in Academy of Management Journal ): This study examines the transition from Grassi’s "solitary stand," which led to his death, to the successful collective mobilization of the Addiopizzo initiative . It analyzes how his individual rebellion eventually became a blueprint for social change. : This research compares Sicilian extortion ( pizzo