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題名 Comparing the forecasting accuracy of prediction markets and polls for Taiwan`s presidential and mayoral elections
作者 Tung,Chen-yuan ;TChou,zu-Chuan ;Jih-wen ;Lin,Hsin-yi
貢獻者 政大經濟系
關鍵詞 prediction markets; industrial surveys;lelections;forecasting;public opinion polls
日期 2011-11
上傳時間 17-Sep-2013 15:25:57 (UTC+8)
摘要 This paper devises a methodology to compare the accuracy of prediction markets and polls. The data of the Exchange of Future Events (xFuture) for Taiwan`s 2006 mayoral elections and 2008 presidential election show that the prediction markets outperform the opinion polls in various indices of accuracy. In terms of the last forecast before the election date, the accuracy of the prediction markets is 3 to 10 percent higher than that of the opinion polls. When comparing the accuracy of historical forecasts, the prediction markets outperform the polls in 93 to 100 percent of the cases. Moreover, the average accuracy of the prediction markets is 9 to 10 percent higher than that of the polls, with a standard deviation more than 2 percent less than that of the polls. To examine the robustness of these comparisons, this paper conducts two tests including daily forecast and normalized accuracy, and finds that the prediction markets successfully pass the tests with a significantly better accuracy than the polls.
關聯 Journal of Prediction Markets, 5(3), 1-26
資料類型 article
dc.contributor 政大經濟系en_US
dc.creator (作者) Tung,Chen-yuan ;TChou,zu-Chuan ;Jih-wen ;Lin,Hsin-yien_US
dc.date (日期) 2011-11en_US
dc.date.accessioned 17-Sep-2013 15:25:57 (UTC+8)-
dc.date.available 17-Sep-2013 15:25:57 (UTC+8)-
dc.date.issued (上傳時間) 17-Sep-2013 15:25:57 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/61063-
dc.description.abstract (摘要) This paper devises a methodology to compare the accuracy of prediction markets and polls. The data of the Exchange of Future Events (xFuture) for Taiwan`s 2006 mayoral elections and 2008 presidential election show that the prediction markets outperform the opinion polls in various indices of accuracy. In terms of the last forecast before the election date, the accuracy of the prediction markets is 3 to 10 percent higher than that of the opinion polls. When comparing the accuracy of historical forecasts, the prediction markets outperform the polls in 93 to 100 percent of the cases. Moreover, the average accuracy of the prediction markets is 9 to 10 percent higher than that of the polls, with a standard deviation more than 2 percent less than that of the polls. To examine the robustness of these comparisons, this paper conducts two tests including daily forecast and normalized accuracy, and finds that the prediction markets successfully pass the tests with a significantly better accuracy than the polls.en_US
dc.format.extent 324126 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) Journal of Prediction Markets, 5(3), 1-26en_US
dc.subject (關鍵詞) prediction markets; industrial surveys;lelections;forecasting;public opinion pollsen_US
dc.title (題名) Comparing the forecasting accuracy of prediction markets and polls for Taiwan`s presidential and mayoral electionsen_US
dc.type (資料類型) articleen