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二千年美國總統選舉及其缺失析述

The US Presidential Election in 2000: Characteristics and Defects

摘要


一九九八年台北市市長選舉中,影響選舉結果最大的是外省籍選民及新黨選民「分裂投票」現象。大量新黨選民在市長選舉中一面倒地投票給國民黨候選人馬英九,但市議員投給新黨乃是導致這種現象出現的主因。筆者認爲這種現象值得作有系統的分析。本文歸納影響選民分裂投票的六個模型,利用六個模型經過對數成敗比模型的比較,在控制人口基本背景因素之後(性別、年齡、敎育程度及籍貫),發現模型影響選民分裂投票的情況:一是政黨認同強度減弱的政黨解組作用導致選民分裂投票。雖然政黨認同在模型中具有明顯的影響力,但台北市近年來並未有政黨解組的趨勢,因此政黨認同減弱並非分裂投票的主因。二爲選民的省籍,尤其是外省籍選民分裂投票行爲相當明顯,其中年輕世代比年紀大的世代更形嚴重。第三則是統獨議題及相關的中國人/台灣人認同。研究結果發現統獨議題對選民分裂投票不具顯著影響力;第四是候選人形象中的裙帶效應並不顯著,對分裂投票與否之間不具明顯差異。五爲選民分立制衡觀念。在相同層級的市府及議會之間選民具有分立制衡的觀念,欲藉政黨間相互制衡以保護民眾的最大福祉,故採取分裂投票的行爲。第六則爲新黨的選民策略投票是影響選民分裂投票的重要因素。新黨選民對於尋求連任的民進黨市長候選人陳水扁相當反感,且新黨市長候選人王建煊當選機會不大的情況下,選擇轉投給國民黨馬英九之策略投票,並進而形成分裂投票。從六個模型最後推論的結果,眞正決定選民分裂與否最重要的因素是選民的省籍背景所導致的情感反應及新黨選民的策略投票。

並列摘要


Split ticket voting by New Party identifiers and Mainlanders had acrucial influence on the outcome of the 1998 Taipei City mayoral election.Large numbers of voters who identified themselves as New Party supportersvoted for the KMT mayoral candidate.However,in the concurrentCity Council elections,they voted for New Party candidates.This surprisingresult is worth researching.To analyze split ticket voting behavior,we consider six different logitmodels.After controlling basic demographic variables,including sex,age,education,and ethnic background,it is possible to discover what influencessplit ticket voting.First,weakening party identification can inducea dealignment process.This,in turn,gives rise to split ticketvoting.In the data,the intensity of party identification has an obvious effecton split ticket voting.However,there has been no dealignment.Thus,weakening party identification is not the main reason for split ticketvoting.The second factor is ethnic background.Mainlanders,especiallyyoung and middle aged voters,are more likely to split their tickets.Third,the related questions of unification or independence and Taiwaneseor Chinese identification also have influence.The effect of theunification/independence position is not significant,but therespondents' ethnic identity is.A fourth finding is that there is no significantcoattail effect influencing split ticket voting.Fifth,many voterswish to balance the parties against each other,and so they split theirvotes.Sixth,strategic voting by New Party supporters was very important.New Party supporters were very opposed to Chen Shui-bian,andthe New Party nominee did not have much chance of winning.As aresult,many split their votes,voting strategically for the KMT mayoralcandidate.After examining the six models,we find that the most important factorsinfluencing split ticket voting are ethnic background and strategicvoting by New Party supporters.These two factors are intimately connected,of course.

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