台灣選舉預測：預測市場的運用與實證分析

Prediction on Taiwan's Elections: Application and Empirical Studies of Prediction Markets

童振源(Chen-Yuan Tung) ； 林馨怡(Hsin-Yi Lin) ； 林繼文(Jih-Wen Lin) ； 黃光雄(G. George Hwang) ； 周子全(Tzu-Chuan Chou) ； 劉嘉凱(Chia-Kai Liu) ； 趙文志(Wen-Chih Chao)

《選舉研究》 16卷2期 (2009/11) Pp. 131-166

https://doi.org/10.6612/tjes.2009.16.02.131-166

摘要

透過預測市場的機制來預測選舉，在國外已經有相當豐碩的研究成果，也被證明具有很高的準確度。因此，本論文要回答的問題是：預測市場是否可以準確預測台灣選舉結果？本論文先介紹預測市場的機制，進而運用預測市場的機制來預測台灣的選舉。根據未來事件交易所的資料顯示，我們發現預測市場機制運用於2006 年北高市長選舉以及2008年台灣總統與立委選舉同樣可以準確預測選舉結果。在這三次的選舉預測中，預測市場對選舉預測的準確度均超過同一時間所進行（但尚未加權）的民意調查。對此，本論文也比較了預測市場和民意調查的差異。

關鍵字

立委選舉 ； 台北市長選舉 ； 高雄市長選舉 ； 預測市場 ； 總統大選

並列摘要

Prediction Markets have been widely used abroad to forecast election results for many years. It has also been proved that such a mechanism can accurately predict election outcomes. Therefore, this paper would like to understand whether prediction markets can accurately predict Taiwan's election outcomes. First, this paper introduces the mechanism of prediction markets and then applies the prediction market mechanism to predict Taiwan's elections. According to the data provided by the Exchange for Future Events, we find that the prediction markets mechanism has accurately predicted the outcomes of Taiwan's Taipei and Kaohsiung mayoral elections in 2006, and Taiwan's presidential election and legislator election in 2008. For these three elections, the predictive accuracy of prediction markets is higher than (unweighted) opinion poll surveys conducted during the same period. This paper then discusses the differences between prediction market and opinion survey.

並列關鍵字

legislator election ； Taipei mayoral election ； Kaohsiung mayoral election ； prediction markets ； presidential election

參考文獻

陳安琳、高蘭芬、湯惠雯(2006)。選舉賭盤之價格形式。選舉研究。13(2)，145-165。

Berg, Joyce(2008).Prediction Market Accuracy in the Long Run.International Journal of Forecasting.24(2),285-300.

Berg, Joyce,Charles Plot(eds.),Vernon Smith.(eds.)(2008).Handbook of Experimental Economic Results.Amsterdam:Elsevier.

Tippie College of Business, University of Iowa. Working Paper

Brüggelambert, Gregor.(2004).Information and Efficiency in Political Stock Markets: Using Computerized Markets to Predict Election Results.Applied Economics.36(7),742-768.