This article must adhere to the biographies of living persons (BLP) policy, even if it is not a biography, because it contains material about living persons. Contentious material about living persons that is unsourced or poorly sourcedmust be removed immediately from the article and its talk page, especially if potentially libellous. If such material is repeatedly inserted, or if you have other concerns, please report the issue to this noticeboard.If you are a subject of this article, or acting on behalf of one, and you need help, please see this help page.
This article is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to join the project and contribute to the discussion. For instructions on how to use this banner, please refer to the documentation.BiographyWikipedia:WikiProject BiographyTemplate:WikiProject Biographybiography
This article is within the scope of WikiProject United States, a collaborative effort to improve the coverage of topics relating to the United States of America on Wikipedia. If you would like to participate, please visit the project page, where you can join the ongoing discussions.
This article is within the scope of WikiProject Chicago, which aims to improve all articles or pages related to Chicago or the Chicago metropolitan area.ChicagoWikipedia:WikiProject ChicagoTemplate:WikiProject ChicagoChicago
This article is within the scope of WikiProject Michigan, a collaborative effort to improve the coverage of the U.S. state of Michigan on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MichiganWikipedia:WikiProject MichiganTemplate:WikiProject MichiganMichigan
This article is within the scope of WikiProject Philosophy, a collaborative effort to improve the coverage of content related to philosophy on Wikipedia. If you would like to support the project, please visit the project page, where you can get more details on how you can help, and where you can join the general discussion about philosophy content on Wikipedia.PhilosophyWikipedia:WikiProject PhilosophyTemplate:WikiProject PhilosophyPhilosophy
This article is within the scope of WikiProject Linguistics, a collaborative effort to improve the coverage of linguistics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.LinguisticsWikipedia:WikiProject LinguisticsTemplate:WikiProject LinguisticsLinguistics
This article is within the scope of WikiProject Economics, a collaborative effort to improve the coverage of Economics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EconomicsWikipedia:WikiProject EconomicsTemplate:WikiProject EconomicsEconomics
"has made several important contributions" - Who said they are important and how many is several. Suggest eliminate "important: and give exact number of contributions. Believe "has made" can be just "made". Pknkly (talk) 14:41, 8 April 2009 (UTC)[reply]
The lead is just a summary of information.
The details are listed in the body of the article, which is very short.
He solved a problem of Dummett and Farquarson that was open for 20 years: The Gibbard Satttherwhaite theorem is often considered to be the most important result in the theory of voting.
Gibbard's books have been widely used and widely reviewed and cited. Just go to the libary and add references, if you are interested in improving the article.
He, along with Stephen Darwall and Peter Railton, have made Michigan a powerhouse for practical philosophy, including decision theory and ethics. Please use JSTOR or a library and add the appropriate references.
