Editing Duncan J. Watts (section)

==Career==
Watts joined the faculty of the University of Pennsylvania in July 2019 as a PIK Professor.  He has joint appointments in Engineering, Communications and Business.

Watts was past external faculty member of the [[Santa Fe Institute]] and a former professor of [[sociology]] at [[Columbia University]], where he headed the Collective Dynamics Group.<ref>[http://cdg.columbia.edu/ CDG Collective Dynamics Group] {{webarchive|url=https://web.archive.org/web/20050402022840/http://cdg.columbia.edu/ |date=2005-04-02 }}</ref> He is also author of two books. His first, ''[[Six Degrees: The Science of a Connected Age]]''<ref name=Watts2003>{{cite book
 | author = Watts, Duncan
 | year = 2003
 | title = Six Degrees: The Science of a Connected Age
 | publisher = W. W. Norton & Company
 | isbn = 978-0-393-04142-2
 | url = https://archive.org/details/sixdegrees00dunc
 }}</ref> is based on the six degrees research in his 1998 paper with [[Steven Strogatz]], in which the two presented a mathematical theory of the [[small world phenomenon]].<ref name=Watts1998>{{Cite journal | last1 = Watts | first1 = D. J. | author-link1 = Duncan J. Watts | last2 = Strogatz | first2 = S. H. | author-link2 = Steven Strogatz | title = Collective dynamics of 'small-world' networks | journal = Nature | volume = 393 | issue = 6684 | pages = 440–442 | doi = 10.1038/30918 | year = 1998 | url = http://labs.yahoo.com/files/w_s_NATURE_0.pdf | pmid = 9623998 | bibcode = 1998Natur.393..440W | s2cid = 4429113 }}{{dead link|date=December 2017 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> His second book, ''Everything is Obvious *Once You Know the Answer: How Common Sense Fails Us,''<ref name="obvious">{{cite book|url=https://archive.org/details/everythingisobvi00watt_0|title=Everything Is Obvious: *Once You Know the Answer: How Common Sense Fails Us|author=Watts, Duncan|publisher=Crown Business|year=2011|isbn=978-0-385-53168-9|location=New York}}</ref> explains common errors people make when making decisions especially for groups or organizations, and suggests alternative methods using research and data. He also presents some of his research from Yahoo and Microsoft, and comments on the work of some popular nonfiction writers like [[Malcolm Gladwell]].

Until April 2012, he was a principal research scientist at [[Yahoo! Research]], where he directed the Human Social Dynamics group.<ref name="Herald Sun">{{cite web | author=AllThingsDigital | title=Aussie social-network researcher exits Yahoo | website=[[Herald Sun]] | date=2012-04-29 | url=https://www.heraldsun.com.au/news/breaking-news/australian-social-network-researcher-duncan-watts-leaves-yahoo/news-story/a465dd3687ef2e5d04b46980f8d1b6ae | access-date=2018-07-08 | archive-date=11 January 2020 | archive-url=https://web.archive.org/web/20200111165155/https://www.heraldsun.com.au/news/breaking-news/australian-social-network-researcher-duncan-watts-leaves-yahoo/news-story/a465dd3687ef2e5d04b46980f8d1b6ae | url-status=dead }}</ref> Watts joined [[Microsoft Research]] in New York City by its opening on May 3, 2012.<ref name="theatlanticcities">Floridia, Richard. [http://www.theatlanticcities.com/jobs-and-economy/2012/05/why-microsoft-chose-new-york-city/1933/ "Why Microsoft Chose New York City"] {{Webarchive|url=https://web.archive.org/web/20140224233616/http://www.theatlanticcities.com/jobs-and-economy/2012/05/why-microsoft-chose-new-york-city/1933/ |date=24 February 2014 }}, ''The Atlantic: Cities'', 2 May 2012. Retrieved on 8 May 2012.</ref><ref>Knies, Rob. [http://research.microsoft.com/en-us/news/features/msrnyc-050212.aspx "Microsoft Research Microsoft Research Debuts N.Y.C. Lab"], ''[[Microsoft Research]]'', 7 May 2012. Retrieved on 8 May 2012.</ref>

Watts describes his research as exploring the "role that network structure plays in determining or constraining system behavior, focusing on a few broad problem areas in social science such as information contagion, [[financial risk management]], and organizational design."<ref>[http://research.yahoo.com/Duncan_Watts Home page of Duncan  Watts at Yahoo Research] {{webarchive|url=https://web.archive.org/web/20091128141431/http://research.yahoo.com/Duncan_Watts |date=2009-11-28 }}</ref>   More recently he has attracted attention for his modern-day replication of [[Stanley Milgram]]'s [[small world experiment]] using email messages and for his studies of popularity and fads in on-line and other communities.

In Watts's early career, from 2002 to 2007, he was a frequent collaborator of [[Peter Sheridan Dodds]], now at the University of Vermont's Vermont Complex Systems Center.