政黨認同是選民對某一政黨的長期心理依附情感，是選民瞭解複雜政治世界的指引，並會影響選民的政治態度。以往選民政黨認同的測量大多是選後所進行的訪問，對於台灣選民在選舉活動頻繁且選舉過程競爭激烈的環境下，選民政黨認同是否會受到投票抉擇的影響而發生變動是較無法掌握。因此本研究試圖藉由短期選舉前後所測量的定群追蹤資料，來瞭解在選舉期間台灣選民政黨認同的是否穩定？並探討投票抉擇是否會對選民政黨認同的穩定與變遷有所影響？ 研究發現，在選舉期間台灣選民政黨認同的是屬穩定，隨著選舉時程的進展，選民政黨認同有逐漸強化的情形，將近有七成的選民在訪問期間皆維持穩定政黨認同，大約三成的選民在選舉期間中，至少改變過一次政黨認同。政黨認同不穩定發生變動的情形，中立無傾向選民為最主要變動來源。且在選舉過程政黨認同發生改變的選民中，有一半的選民其政黨認同會與投票對象相符，是反映當前的投票抉擇。關於投票抉擇對於選民政黨認同穩定與變遷的影響，我們發現，在維持政黨認同穩定方面，選前有明確政黨認同的選民，當其投票抉擇方向與所認同之政黨相一致時，其是較能維持政黨認同的穩定性，但若選前有明確政黨認同的選民，當其投票抉擇方向與所認同政黨不一致時，此時是較不容易維持原先政黨認同。在政黨認同變遷方面，選民政黨認同轉變的方向則是會投票抉擇方向一致。 本文僅以初探性的研究出發，期許透過本文的發現，使得相關研究學者能夠注重台灣選民政黨認同可能會受到短期因素影響，在選後所測量的政黨認同，其中可能包含了中立無傾向選民所反映出的投票意向，並非內心對於政黨的心理依附情感。

2016年的英國脫歐公投，最終以51.89%比48.11%的差距，決定了英國脫歐的命運。各界紛紛揣測各種可能造成民眾投下脫歐一票的原因，包含個人經濟狀況、政黨認同、受民粹操控、反菁英、對歐洲認同等。本文針對既有研究中尚存在之空缺，聚焦「議題投票取向」對選民投票抉擇的影響，探究脫歐陣營對資訊的扭曲是否對選民的投票抉擇有顯著影響。論文就脫歐派針對國民健保、移民、脫歐後的英國對外經貿、失業率、勞工權益保障與是否能無條件持續享有歐盟單一市場好處這六項議題，透過「二分勝算對數模型」進行分析，從個體層次行為來瞭解資訊扭曲對選民在脫歐公投中投票行為的影響。 研究結果顯示，在移民潮來襲、民眾高喊反全球化與選民不安全感高漲的大環境背景下，脫歐陣營對選民所關心之議題的煽動與對資訊的操控使選民在做出投票抉擇時受到明顯誤導。此外，模型結果亦顯示，選民的個人社經背景與心理態度認知同樣對選民投票行為產生影響。總結而言，本研究透過微觀層次的分析，針對促使選民投下脫歐一票的因素做出深入探討，並以「資訊扭曲」作為重要變數，補充議題投票相關研究之不足。 / In the Brexit referendum held in June 2016, 51.89 per cent of the voter voted Leave and 48.11 per cent voted Remain. The result sealed the fate of the UK as an outsider of the European Union. While the reasons behind voter’s choice to leave the EU remain disputed, individual voter’s socio-economic status, party identification, populism, anti-elite mood, and identity toward European were among the most frequently listed factors. In order to fill the gap that existing researchs has left, this thesis focuses on the significance of “issue voting” in voting behavior. It discusses if the distortion of information by the Leave campaign had a significant impact on people’s voting choice. It uses the “logistic regression model” to analyse six issues brought about by the Leave campaign. They include the NHS, immigration, trading arrangements with other nations, unemployment, working conditions for British workers, and unconditional maintaining of all the benefits from the EU. By focusing on the individual level, I try to investigate how the distortion of information has impacted upon people’s voting behavior in the Brexit referendum. The study shows that against the background of an increased flow of immigrants and heightened anti-globalization mood, voters had a strong sense of insecurity. Under such circumstances, the Leave campaign exploited the opportunity to incite voters on issues they cared most about, manipulated information during the demagogic campaign, and misled people on their voting decision. In addition, the model also demonstrates that voters’ socioeconomic status and mental cognizance have the same effect on people’s voting behavior. In the nutshell, this thesis uses micro-level analysis to investigate voter behavior in the Brexit referendum. It brings in “information distortion” as a key variable in explaining voter behavior, a variable largely neglected in the existing literature on issue voting.