{"id":127,"date":"2018-06-14T19:04:35","date_gmt":"2018-06-14T19:04:35","guid":{"rendered":"https:\/\/pressbooks.ccconline.org\/bus3060\/chapter\/ch07-7\/"},"modified":"2026-02-15T01:30:47","modified_gmt":"2026-02-15T01:30:47","slug":"ch07-7","status":"publish","type":"chapter","link":"https:\/\/pressbooks.ccconline.org\/bus3060\/chapter\/ch07-7\/","title":{"raw":"7.7 Prediction Markets and the Wisdom of Crowds","rendered":"7.7 Prediction Markets and the Wisdom of Crowds"},"content":{"raw":"<div id=\"slug-7-7-prediction-markets-and-the-wisdom-of-crowds\" class=\"chapter standard\">\r\n<div class=\"ugc chapter-ugc\">\r\n<div id=\"fwk-38086-ch06_s07_n01\" class=\"bcc-box bcc-highlight\">\r\n<div class=\"textbox textbox--learning-objectives\"><header class=\"textbox__header\">\r\n<p class=\"textbox__title\"><span style=\"font-family: 'Cormorant Garamond', serif; font-size: 1em; font-style: normal; font-weight: bold;\">Learning Objectives<\/span><\/p>\r\n\r\n<\/header>\r\n<div class=\"textbox__content\">\r\n<p id=\"fwk-38086-ch06_s07_p01\" class=\"nonindent para\">After studying this section you should be able to do the following:<\/p>\r\n\r\n<ol id=\"fwk-38086-ch06_s07_l01\" class=\"orderedlist\">\r\n \t<li>Understand the concept of the wisdom of crowds as it applies to social networking.<\/li>\r\n \t<li>List the criteria necessary for a crowd to be smart.<\/li>\r\n<\/ol>\r\n<\/div>\r\n<\/div>\r\n&nbsp;\r\n\r\n<\/div>\r\n<p id=\"fwk-38086-ch06_s07_p02\" class=\"nonindent para editable block\">Many social software efforts leverage what has come to be known as the wisdom of crowds. In this concept, a group of individuals (the crowd often consists mostly of untrained amateurs), collectively has more insight than a single or small group of trained professionals. Made popular by author James Surowiecki (whose best-selling book was named after the phenomenon), the idea of crowd wisdom is at the heart of wikis, folksonomy tagging systems, and many other online efforts. An article in the journal <em class=\"emphasis\">Nature<\/em> positively comparing Wikipedia to <em class=\"emphasis\">Encyclopedia Britannica<\/em> lent credence to social software\u2019s use in harnessing and distilling crowd wisdom (Giles, 2005).<\/p>\r\n<p id=\"fwk-38086-ch06_s07_p03\" class=\"indent para editable block\">The crowd isn\u2019t always right, but in many cases where topics are complex, problems are large, and outcomes are uncertain, a large, diverse group may bring collective insight to problem solving that one smart guy or a professional committee lacks. One technique for leveraging the wisdom of crowds is a prediction market, where a diverse crowd is polled and opinions aggregated to form a forecast of an eventual outcome. The concept is not new. The stock market is arguably a prediction market, with a stock price representing collective assessment of the discounted value of a firm\u2019s future earnings. But Internet technologies are allowing companies to set up prediction markets for exploring all sorts of problems.<\/p>\r\n<p id=\"fwk-38086-ch06_s07_p04\" class=\"indent para editable block\">Consider Best Buy, where employees are encouraged to leverage the firm\u2019s TagTrade prediction market to make forecasts, and are offered small gifts as incentives for participation. The idea behind this incentive program is simple: the \u201cblue shirts\u201d (Best Buy employees) are closest to customers. They see traffic patterns and buying cycles, can witness customer reactions first hand, and often have a degree of field insight not available to senior managers at the company\u2019s Minneapolis headquarters. Harness this collective input and you\u2019ve got a group brain where, as wisdom of crowds proponents often put it, \u201cthe we is greater than the me.\u201d When Best Buy asked its employees to predict gift card sales, the \u201ccrowd\u2019s\u201d collective average answer was 99.5 percent accurate; experts paid to make the prediction were off by 5 percent. Another experiment predicting holiday sales was off by only 1\/10 of 1 percent. The experts? Off by 7 percent (Dvorak, 2008; Dye, 2008)!<\/p>\r\n<p id=\"fwk-38086-ch06_s07_p05\" class=\"indent para editable block\">In an article in the <em class=\"emphasis\">McKinsey Quarterly<\/em>, Surowiecki outlined several criteria necessary for a crowd to be \u201csmart\u201d (Dye, 2008). The crowd must<\/p>\r\n\r\n<ul id=\"fwk-38086-ch06_s07_l02\" class=\"itemizedlist editable block\">\r\n \t<li>be <em class=\"emphasis\">diverse<\/em>, so that participants are bringing different pieces of information to the table,<\/li>\r\n \t<li>be <em class=\"emphasis\">decentralized<\/em>, so that no one at the top is dictating the crowd\u2019s answer,<\/li>\r\n \t<li>offer <em class=\"emphasis\">a collective verdict<\/em> that summarizes participant opinions,<\/li>\r\n \t<li>be <em class=\"emphasis\">independent<\/em>, so that each focuses on information rather than the opinions of others.<\/li>\r\n<\/ul>\r\n<p id=\"fwk-38086-ch06_s07_p06\" class=\"indent para editable block\">Google, which runs several predictive markets, underscored these principles when it found that predictions were less accurate when users were geographically proximate, meaning folks in the same work group who sat near one another typically thought too much alike (Cowgill, et. al., 2009). Poorer predictive outcomes likely resulted because these relatively homogeneous clusters of users brought the same information to the table (yet another reason why organizations should hire and cultivate diverse teams).<\/p>\r\n<p id=\"fwk-38086-ch06_s07_p07\" class=\"indent para editable block\">Many firms run predictive markets to aid in key forecasts, and with the potential for real financial payoff. But University of Chicago law professor Todd Henderson warns predictive markets may also hold legal and ethical challenges. The Securities and Exchange Commission may look askance at an employee who gets a heads-up in a predictive market that says a certain drug is going to be approved or fail clinical trials. If she trades on this information is she an insider, subject to prosecution for exploiting proprietary data? Disclosure issues are unclear. Gambling laws are also murky, with Henderson uncertain as to whether certain predictive markets will be viewed as an unregulated form of betting (Dye, 2008).<\/p>\r\n<p id=\"fwk-38086-ch06_s07_p08\" class=\"indent para editable block\">Publicly accessible prediction markets are diverse in their focus. The Iowa Electronic Market attempts to guess the outcome of political campaigns, with mixed results. Farecast (now part of Microsoft\u2019s Bing knowledge engine) claims a 75 percent accuracy rate for forecasting the future price of airline tickets<sup>1<\/sup>. The Hollywood Stock Exchange allows participants to buy and sell prediction shares of movies, actors, directors, and film-related options. The exchange, now owned by investment firm Cantor Fitzgerald, has picked Oscar winners with 90 percent accuracy (Surowiecki, 2007). And at HedgeStreet.com, participants can make microbets, wagering as little as ten dollars on the outcome of economic events, including predictions on the prices of homes, gold, foreign currencies, oil, and even the economic impact of hurricanes and tropical storms. HedgeStreet is considered a market and is subject to oversight by the Commodity Futures Trading Commission (Lambert, 2006).<\/p>\r\n\r\n<div id=\"fwk-38086-ch06_s07_n02\" class=\"bcc-box bcc-success\">\r\n<div class=\"textbox textbox--key-takeaways\"><header class=\"textbox__header\">\r\n<p class=\"textbox__title\"><span style=\"font-family: 'Cormorant Garamond', serif; font-size: 1em; font-style: normal; font-weight: bold;\">Key Takeaways<\/span><\/p>\r\n\r\n<\/header>\r\n<div class=\"textbox__content\">\r\n<ul id=\"fwk-38086-ch06_s07_l03\" class=\"itemizedlist\">\r\n \t<li>Many Web 2.0 efforts allow firms to tap the wisdom of crowds, identifying collective intelligence.<\/li>\r\n \t<li>Prediction markets tap crowd opinion with results that are often more accurate than the most accurate expert forecasts and estimates.<\/li>\r\n \t<li>Prediction markets are most accurate when tapping the wisdom of a diverse and variously skilled and experienced group, and are least accurate when participants are highly similar.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n&nbsp;\r\n\r\n<\/div>\r\n<div id=\"fwk-38086-ch06_s07_n03\" class=\"bcc-box bcc-info\">\r\n<div class=\"textbox textbox--exercises\"><header class=\"textbox__header\">\r\n<p class=\"textbox__title\"><span style=\"font-family: 'Cormorant Garamond', serif; font-size: 1em; font-style: normal; font-weight: bold;\">Questions and Exercises<\/span><\/p>\r\n\r\n<\/header>\r\n<div class=\"textbox__content\">\r\n<ol id=\"fwk-38086-ch06_s07_l04\" class=\"orderedlist\">\r\n \t<li>What makes for a \u201cwise\u201d crowd? When might a crowd not be so wise?<\/li>\r\n \t<li>Find a prediction market online and participate in the effort. Be prepared to share your experience with your class, including any statistics of predictive accuracy, participant incentives, business model of the effort, and your general assessment of the appeal and usefulness of the effort.<\/li>\r\n \t<li>Brainstorm on the kinds of organizations that might deploy prediction markets. Why might you think the efforts you suggest and advocate would be successful?<\/li>\r\n \t<li>In what ways are legal issues of concern to prediction market operators?<\/li>\r\n<\/ol>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<p class=\"indent\"><sup>1<\/sup>\u201cAudit Reveals Farecast Predictive Accuracy at 74.5 percent,\u201d <em class=\"emphasis\">farecast.live.com<\/em>, May 18, 2007, <a class=\"link\" href=\"http:\/\/www.prnewswire.com\/news-releases\/farecast-launches-new-tools-to-help-savvy-travelers-catch-elusive-airfare-price-drops-this-summer-58165652.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.prnewswire.com\/news-releases\/farecast-launches-new-tools-to -help-savvy-travelers-catch-elusive-airfare-price-drops-this-summer-58165652.html<\/a>.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n","rendered":"<div id=\"slug-7-7-prediction-markets-and-the-wisdom-of-crowds\" class=\"chapter standard\">\n<div class=\"ugc chapter-ugc\">\n<div id=\"fwk-38086-ch06_s07_n01\" class=\"bcc-box bcc-highlight\">\n<div class=\"textbox textbox--learning-objectives\">\n<header class=\"textbox__header\">\n<p class=\"textbox__title\"><span style=\"font-family: 'Cormorant Garamond', serif; font-size: 1em; font-style: normal; font-weight: bold;\">Learning Objectives<\/span><\/p>\n<\/header>\n<div class=\"textbox__content\">\n<p id=\"fwk-38086-ch06_s07_p01\" class=\"nonindent para\">After studying this section you should be able to do the following:<\/p>\n<ol id=\"fwk-38086-ch06_s07_l01\" class=\"orderedlist\">\n<li>Understand the concept of the wisdom of crowds as it applies to social networking.<\/li>\n<li>List the criteria necessary for a crowd to be smart.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<\/div>\n<p id=\"fwk-38086-ch06_s07_p02\" class=\"nonindent para editable block\">Many social software efforts leverage what has come to be known as the wisdom of crowds. In this concept, a group of individuals (the crowd often consists mostly of untrained amateurs), collectively has more insight than a single or small group of trained professionals. Made popular by author James Surowiecki (whose best-selling book was named after the phenomenon), the idea of crowd wisdom is at the heart of wikis, folksonomy tagging systems, and many other online efforts. An article in the journal <em class=\"emphasis\">Nature<\/em> positively comparing Wikipedia to <em class=\"emphasis\">Encyclopedia Britannica<\/em> lent credence to social software\u2019s use in harnessing and distilling crowd wisdom (Giles, 2005).<\/p>\n<p id=\"fwk-38086-ch06_s07_p03\" class=\"indent para editable block\">The crowd isn\u2019t always right, but in many cases where topics are complex, problems are large, and outcomes are uncertain, a large, diverse group may bring collective insight to problem solving that one smart guy or a professional committee lacks. One technique for leveraging the wisdom of crowds is a prediction market, where a diverse crowd is polled and opinions aggregated to form a forecast of an eventual outcome. The concept is not new. The stock market is arguably a prediction market, with a stock price representing collective assessment of the discounted value of a firm\u2019s future earnings. But Internet technologies are allowing companies to set up prediction markets for exploring all sorts of problems.<\/p>\n<p id=\"fwk-38086-ch06_s07_p04\" class=\"indent para editable block\">Consider Best Buy, where employees are encouraged to leverage the firm\u2019s TagTrade prediction market to make forecasts, and are offered small gifts as incentives for participation. The idea behind this incentive program is simple: the \u201cblue shirts\u201d (Best Buy employees) are closest to customers. They see traffic patterns and buying cycles, can witness customer reactions first hand, and often have a degree of field insight not available to senior managers at the company\u2019s Minneapolis headquarters. Harness this collective input and you\u2019ve got a group brain where, as wisdom of crowds proponents often put it, \u201cthe we is greater than the me.\u201d When Best Buy asked its employees to predict gift card sales, the \u201ccrowd\u2019s\u201d collective average answer was 99.5 percent accurate; experts paid to make the prediction were off by 5 percent. Another experiment predicting holiday sales was off by only 1\/10 of 1 percent. The experts? Off by 7 percent (Dvorak, 2008; Dye, 2008)!<\/p>\n<p id=\"fwk-38086-ch06_s07_p05\" class=\"indent para editable block\">In an article in the <em class=\"emphasis\">McKinsey Quarterly<\/em>, Surowiecki outlined several criteria necessary for a crowd to be \u201csmart\u201d (Dye, 2008). The crowd must<\/p>\n<ul id=\"fwk-38086-ch06_s07_l02\" class=\"itemizedlist editable block\">\n<li>be <em class=\"emphasis\">diverse<\/em>, so that participants are bringing different pieces of information to the table,<\/li>\n<li>be <em class=\"emphasis\">decentralized<\/em>, so that no one at the top is dictating the crowd\u2019s answer,<\/li>\n<li>offer <em class=\"emphasis\">a collective verdict<\/em> that summarizes participant opinions,<\/li>\n<li>be <em class=\"emphasis\">independent<\/em>, so that each focuses on information rather than the opinions of others.<\/li>\n<\/ul>\n<p id=\"fwk-38086-ch06_s07_p06\" class=\"indent para editable block\">Google, which runs several predictive markets, underscored these principles when it found that predictions were less accurate when users were geographically proximate, meaning folks in the same work group who sat near one another typically thought too much alike (Cowgill, et. al., 2009). Poorer predictive outcomes likely resulted because these relatively homogeneous clusters of users brought the same information to the table (yet another reason why organizations should hire and cultivate diverse teams).<\/p>\n<p id=\"fwk-38086-ch06_s07_p07\" class=\"indent para editable block\">Many firms run predictive markets to aid in key forecasts, and with the potential for real financial payoff. But University of Chicago law professor Todd Henderson warns predictive markets may also hold legal and ethical challenges. The Securities and Exchange Commission may look askance at an employee who gets a heads-up in a predictive market that says a certain drug is going to be approved or fail clinical trials. If she trades on this information is she an insider, subject to prosecution for exploiting proprietary data? Disclosure issues are unclear. Gambling laws are also murky, with Henderson uncertain as to whether certain predictive markets will be viewed as an unregulated form of betting (Dye, 2008).<\/p>\n<p id=\"fwk-38086-ch06_s07_p08\" class=\"indent para editable block\">Publicly accessible prediction markets are diverse in their focus. The Iowa Electronic Market attempts to guess the outcome of political campaigns, with mixed results. Farecast (now part of Microsoft\u2019s Bing knowledge engine) claims a 75 percent accuracy rate for forecasting the future price of airline tickets<sup>1<\/sup>. The Hollywood Stock Exchange allows participants to buy and sell prediction shares of movies, actors, directors, and film-related options. The exchange, now owned by investment firm Cantor Fitzgerald, has picked Oscar winners with 90 percent accuracy (Surowiecki, 2007). And at HedgeStreet.com, participants can make microbets, wagering as little as ten dollars on the outcome of economic events, including predictions on the prices of homes, gold, foreign currencies, oil, and even the economic impact of hurricanes and tropical storms. HedgeStreet is considered a market and is subject to oversight by the Commodity Futures Trading Commission (Lambert, 2006).<\/p>\n<div id=\"fwk-38086-ch06_s07_n02\" class=\"bcc-box bcc-success\">\n<div class=\"textbox textbox--key-takeaways\">\n<header class=\"textbox__header\">\n<p class=\"textbox__title\"><span style=\"font-family: 'Cormorant Garamond', serif; font-size: 1em; font-style: normal; font-weight: bold;\">Key Takeaways<\/span><\/p>\n<\/header>\n<div class=\"textbox__content\">\n<ul id=\"fwk-38086-ch06_s07_l03\" class=\"itemizedlist\">\n<li>Many Web 2.0 efforts allow firms to tap the wisdom of crowds, identifying collective intelligence.<\/li>\n<li>Prediction markets tap crowd opinion with results that are often more accurate than the most accurate expert forecasts and estimates.<\/li>\n<li>Prediction markets are most accurate when tapping the wisdom of a diverse and variously skilled and experienced group, and are least accurate when participants are highly similar.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<\/div>\n<div id=\"fwk-38086-ch06_s07_n03\" class=\"bcc-box bcc-info\">\n<div class=\"textbox textbox--exercises\">\n<header class=\"textbox__header\">\n<p class=\"textbox__title\"><span style=\"font-family: 'Cormorant Garamond', serif; font-size: 1em; font-style: normal; font-weight: bold;\">Questions and Exercises<\/span><\/p>\n<\/header>\n<div class=\"textbox__content\">\n<ol id=\"fwk-38086-ch06_s07_l04\" class=\"orderedlist\">\n<li>What makes for a \u201cwise\u201d crowd? When might a crowd not be so wise?<\/li>\n<li>Find a prediction market online and participate in the effort. Be prepared to share your experience with your class, including any statistics of predictive accuracy, participant incentives, business model of the effort, and your general assessment of the appeal and usefulness of the effort.<\/li>\n<li>Brainstorm on the kinds of organizations that might deploy prediction markets. Why might you think the efforts you suggest and advocate would be successful?<\/li>\n<li>In what ways are legal issues of concern to prediction market operators?<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"indent\"><sup>1<\/sup>\u201cAudit Reveals Farecast Predictive Accuracy at 74.5 percent,\u201d <em class=\"emphasis\">farecast.live.com<\/em>, May 18, 2007, <a class=\"link\" href=\"http:\/\/www.prnewswire.com\/news-releases\/farecast-launches-new-tools-to-help-savvy-travelers-catch-elusive-airfare-price-drops-this-summer-58165652.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.prnewswire.com\/news-releases\/farecast-launches-new-tools-to -help-savvy-travelers-catch-elusive-airfare-price-drops-this-summer-58165652.html<\/a>.<\/p>\n<\/div>\n<\/div>\n","protected":false},"author":217,"menu_order":7,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[49],"contributor":[],"license":[],"class_list":["post-127","chapter","type-chapter","status-publish","hentry","chapter-type-numberless"],"part":110,"_links":{"self":[{"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/pressbooks\/v2\/chapters\/127","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/wp\/v2\/users\/217"}],"version-history":[{"count":4,"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/pressbooks\/v2\/chapters\/127\/revisions"}],"predecessor-version":[{"id":688,"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/pressbooks\/v2\/chapters\/127\/revisions\/688"}],"part":[{"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/pressbooks\/v2\/parts\/110"}],"metadata":[{"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/pressbooks\/v2\/chapters\/127\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/wp\/v2\/media?parent=127"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/pressbooks\/v2\/chapter-type?post=127"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/wp\/v2\/contributor?post=127"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/bus3060\/wp-json\/wp\/v2\/license?post=127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}