id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-3143 Diego Gambetta - Wikipedia .html text/html 1955 274 63 In 1983 Gambetta received his PhD in social and political sciences from the University of Cambridge, where his doctoral supervisor was the late social statistician Cathie Marsh.[2] He was first junior and then senior research fellow at King's College, Cambridge, from 1984 to 1991. In his book "The Sicilian Mafia: The Business of Private Protection" (published by Harvard University Press in 1993), he brings a new perspective on an extralegal institution like the Mafia by underscoring the market demand for protection that it satisfies and by showing how mafiosi apparently outlandish rituals and behaviours make organisational sense. How Criminals Communicate" (published by Princeton University Press in 2009), applies signalling theory to analyse how credibility of communication is established in a world where trust is under multiple threats. In 2005 he edited "Making Sense of Suicide Missions" (published by Oxford University Press), and he is now working with Steffen Hertog on a book on "Engineers of Jihad" for Princeton University Press.[18] ./cache/en-wikipedia-org-3143.html ./txt/en-wikipedia-org-3143.txt