選民、媒體、政黨三方之間存在什麼關係？在過去政黨的研究多著重於政治景氣循環，政黨合作與競爭、賄選問題，鮮少有文章將選民、媒體、政黨三方合併做研究，媒體作為資訊的傳遞者，選民透過媒體獲得政黨政策並運用選票選出心目中適合的政黨，當媒體並非中立，傳遞的資訊被扭曲，接收資訊的社會大眾仍然能做出理性的選擇嗎？本文透過賽局理論，分析政黨、媒體與選民三方之間的互動，並假設社會只有一中立媒體之情況和雙佔媒體且各自偏好自己喜愛的政黨做報導，研究在選民偏好改變，媒體報導成本增加和政黨公布政策間的變化關係。
研究發現，當民眾偏好改變，媒體會隨著改變對於新聞版面的配置，售價也會相對調整，政黨也會因應選民的變化做出政策調整，可以看出三者之間有著密不可分的連動關係。
What is the relationship between the voters media and parties? In the past time, parties’ studies are emphasis on political business cycle, party cooperation and competition, bribery problem. There are few articles to the voters, the media, political parties and three-way merge do research. Media as transmitters of information, the voters get political policy through the media and use the ballot to elect the party in their mind. When the media is not neutral, information delivery is distorted. Can the received information public still make a rational choice? In this paper via game theory analysis one another of the interaction of parties, media and voters. Assuming only the case of a neutral media and the duopoly media preferences for their favorite political party do reports. Research in when voter preferences change, the changing relations between increasing costs to media reports and publicizing political parties’ policy.
The study found that when people change preferences, the media will change with the news sections of the configuration, the price will be relatively adjust. Political parties to make the light of changes in the electorate policy adjustments, we can see these is inextricably linked relationship.
