Changes

|The economist {{W|Friedrich Hayek }} publishes the essay "The Use of Knowledge in Society" arguing that information is decentralized within an economy and how that contributes to efficiency. The essay initiates a wider interest for information in economics.<ref>{{Citation|last=Hayek|first=Friedrich|title=The use of knowledge in society|url=http://dx.doi.org/10.1017/cbo9780511817410.007|work=The economic nature of the firm|pages=63–68|publisher=Cambridge University Press|isbn=9780511817410|access-date=2018-09-30}}</ref> (In 2011, "The Use of Knowledge in Society" was selected as one of the top 20 articles published in the American Economic Review during its first 100 years.<ref>{{Cite journal|last=Arrow|first=Kenneth J|last2=Bernheim|first2=B. Douglas|last3=Feldstein|first3=Martin S|last4=McFadden|first4=Daniel L|last5=Poterba|first5=James M|last6=Solow|first6=Robert M|date=February 2011|title=100 Years of theAmerican Economic Review: The Top 20 Articles|url=https://www.aeaweb.org/articles?id=10.1257/aer.101.1.1|journal=American Economic Review|language=en|volume=101|issue=1|pages=1–8|doi=10.1257/aer.101.1.1|issn=0002-8282|via=}}</ref>)

|The {{W|Federal Wire Act}} becomes effective in the US, outlawing using wire {{W|wired communication facility }} for betting or wagering, to prevent interstate gambling.<ref>{{Cite web|url=https://www.gpo.gov/fdsys/pkg/STATUTE-75/pdf/STATUTE-75-Pg491.pdf|title=Text of the 1961 Federal Wire Act|last=|first=|date=|website=|archive-url=|archive-date=|dead-url=|access-date=}}</ref>

|{{W|Iowa Political Stock Market}} , a non-profit prediction market platform for educational and research purposes, launches during the US presidential election.<ref>{{Cite web|url=http://tippie.uiowa.edu/iem/media/wsj.html|title=Wall Street Journal reprint of "Iowa Market Takes Stock of Presidential Candidates"|last=|first=|date=|website=|archive-url=https://web.archive.org/web/20121130193428/http://tippie.uiowa.edu/iem/media/wsj.html|archive-date=2012-11-30|dead-url=|access-date=}}</ref>

|At {{W|Project Xanadu}}, the first hypertext project, {{W|Robin Hanson}} uses the first known corporate prediction market.<ref>{{Cite web|url=https://web.archive.org/web/20150219013504/http://mason.gmu.edu/~rhanson/bio.html|title=Robin Hanson's Bio|date=2015-02-19|access-date=2018-09-04}}</ref>

|Ron Bernstein and Sean McNamara start {{W|Intrade.com}}, a prediction market charging a monthly feeservice operating from the Republic of Ireland.<ref>{{Cite web|url=https://web.archive.org/web/20130601090502/https://www.computerweekly.com/feature/Sport-in-the-City|title=Sport in the City|date=2013-06-01|access-date=2018-09-04}}</ref>

|Chen and Plott (2002) ran eight prediction markets within Hewlett-Packard to forecast important variables like quarterly printer sales.These results showed that the markets were more accurate than the company’s official forecasts.<ref>{{Citation|last=Chen|first=Kay-Yut|title=Chapter 40 Markets and Information Aggregation Mechanisms|date=2008|url=http://dx.doi.org/10.1016/s1574-0722(07)00040-6|work=Handbook of Experimental Economics Results|pages=344–352|publisher=Elsevier|isbn=9780444826428|access-date=2018-09-23|last2=Plott|first2=Charles R.}}</ref>

|Two US senators call for the immediate end of FutureMAP.<ref>{{Cite web|url=https://web.archive.org/web/20030811195116/http://wyden.senate.gov/media/2003/07282003_terrormarket.html|title=Senator Ron Wyden|date=2003-08-11|access-date=2018-09-04}}</ref>|-|2003|Discontinuation|DARPA's FutureMAP program terminatesthe next day.<ref>{{Cite web|url=https://web.archive.org/web/20030811045100/http://www.iwar.org.uk/news-archive/tia/futuremap-darpa.pdf|title=Wayback Machine|date=2003-08-11|access-date=2018-09-04}}</ref>

|Smarkets, a person-to-person betting exchangeplatform, launches.<ref>{{Cite web|url=https://web.archive.org/web/20080402232630/http://blog.smarkets.com/about/|title=About « Smarkets Blog|date=2008-04-02|access-date=2018-09-04}}</ref>

|{{W|IARPA}}'s Aggregative Contingent Estimation (ACE) program launches, seeking innovation in allocation of probabilistic jugments, conditional probabilities for contingent events, mathematical aggregation of judgments by many individuals, representation of aggregated probabilistic forecasts and their distributions.<ref>{{Cite web|url=https://web.archive.org/web/20120916135741/https://www.fbo.gov/index?s=opportunity&mode=form&tab=core&id=54f9f4b696ffeedf52cffc433a2fc878|title=Aggregative Contingent Estimation (ACE) Program Broad Agency Announcement (BAA) - Federal Business Opportunities: Opportunities|date=2012-09-16|access-date=2018-09-04}}</ref>

|(Snowberg, Wolfers, Zitzewitz 2013) show that the track record of prediction markets out-perform bothprofessional forecasters and polls in a variety of statistical tests.<ref>{{Citation|last=Snowberg|first=Erik|title=Prediction Markets for Economic Forecasting|date=2013|url=http://dx.doi.org/10.1016/b978-0-444-53683-9.00011-6|work=Handbook of Economic Forecasting|pages=657–687|publisher=Elsevier|isbn=9780444536839|access-date=2018-09-23|last2=Wolfers|first2=Justin|last3=Zitzewitz|first3=Eric}}</ref>

|Microsoft launches Prediction Lab, a product blending non-representative polling and prediction games.<ref>{{Cite web|url=https://web.archive.org/web/20150919035714/http://www.predictwise.com/node/3765|title=Why Microsoft Prediction Lab {{!}} PredictWise|date=2015-09-19|access-date=2018-09-04}}</ref>