provides a translation in English of a Latin manuscript (published in Petty-Fitzmaurice ed. (1927) – The Petty Papers (Petty 1927). Petty was a life-long friend of Hobbes, and is methodological and political views – according to Aspromourgos 1996 (especially chapter 4, p. 54-72) – were derived primarily from Hobbes. But in this text he criticizes Hobbes for his preference for monarchy, as opposed to democracy.
Aspromourgos, Tony (1996). On the Origins of Classical Economics: Distribution and value from William Petty to Adam Smith. London etc: Routledge. ISBN0-415-12878-1.
—— (2001). "The Mind of the Oeconomist: An Overview of the "Petty Papers" Archive". History of Economic Ideas. 9 (1): 39–101. JSTOR23723592.
—— (2005). "The invention of the concept of social surplus: Petty in the Hartlib circle". European Journal on the History of Economic Thought. 12 (1 (March)): 1–24. doi:10.1080/0967256042000338014.
Roncaglia, Alessandro (1985). Petty. The Origins of Political Economy. Translated by Isabella Cherubini. Cardiff etc: University College Cardiff Press. ISBN0-906449-91-X. (translation of Petty: la nascita dell' economia politica,1977)