Common Knowledge and Convention. Sillari, G. Topoi, 27(1-2):29–39, July, 2008. Cited by 0010
Common Knowledge and Convention [link]Paper  doi  abstract   bibtex   
This paper investigates the epistemic assumptions that David Lewis makes in his account of social conventions. In particular, I focus on the assumption that the agents have common knowledge of the convention to which they are parties. While evolutionary analyses show that the common knowledge assumption is unnecessary in certain classes of games, Lewis’ original account (and, more recently, Cubitt and Sugden’s reconstruction) stresses the importance of including it in the definition of convention. I discuss arguments pro et contra to argue that, although the assumption might be relevant to a descriptively adequate account of social convention, it is not required for its rational reconstruction. I then point out that Lewis’ account, properly speaking, is of common reason to believe, rather than of common knowledge, and argue that, in order to formalize aptly the distinction between reason to believe and belief, standard formal epistemic models need to be supplemented with so-called awareness structures. Finally, I stress that the notion of knowledge implicit in Lewis’ text involves interesting elements that cannot be captured in the standard propositional formalizations, but need the full expressive force of quantified epistemic logic.
@article{sillari_common_2008,
	title = {Common {Knowledge} and {Convention}},
	volume = {27},
	issn = {0167-7411, 1572-8749},
	url = {http://link.springer.com.pbidi.unam.mx:8080/article/10.1007/s11245-008-9030-7},
	doi = {10.1007/s11245-008-9030-7},
	abstract = {This paper investigates the epistemic assumptions that David Lewis makes in his account of social conventions. In particular, I focus on the assumption that the agents have common knowledge of the convention to which they are parties. While evolutionary analyses show that the common knowledge assumption is unnecessary in certain classes of games, Lewis’ original account (and, more recently, Cubitt and Sugden’s reconstruction) stresses the importance of including it in the definition of convention. I discuss arguments pro et contra to argue that, although the assumption might be relevant to a descriptively adequate account of social convention, it is not required for its rational reconstruction. I then point out that Lewis’ account, properly speaking, is of common reason to believe, rather than of common knowledge, and argue that, in order to formalize aptly the distinction between reason to believe and belief, standard formal epistemic models need to be supplemented with so-called awareness structures. Finally, I stress that the notion of knowledge implicit in Lewis’ text involves interesting elements that cannot be captured in the standard propositional formalizations, but need the full expressive force of quantified epistemic logic.},
	language = {en},
	number = {1-2},
	urldate = {2013-07-29},
	journal = {Topoi},
	author = {Sillari, Giacomo},
	month = jul,
	year = {2008},
	note = {Cited by 0010},
	keywords = {Awareness, Common knowledge, Convention, David Lewis, Philosophy, Philosophy of Science, Philosophy of Technology, Quantified epistemic logic},
	pages = {29--39},
}

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