「最有利標」採購制度的實施,是為改善過去以最低價為公共工程決標唯一機制,與解決可能延伸問題所造成的風險。依審計部於2005年1月,所整理的公告金額以上之工程採購案件統計資料顯示:於2001年至2003年間,因使用最有利標為決標之案件數已超過870件,總決標金額亦已超過新台幣800億元,且有逐年增加的趨勢,其成長幅度分別為81%與141%。相對地,最有利標採購制度評定方式之缺失亦逐漸浮現。其中,因評選委員評分的一致與否,可能成為左右評定結果的重要因素之一,所以,驗證評選委員評分的一致性,便成為研究的動機之一。以統計學理為基礎,構建另一套較嚴謹的最有利標評定方式之流程,為研究動機之二。在各項準則權重與委員評選下,展現各評選準則之績優廠商群,以作為工程採購單位,日後與評選廠商進行協商的依據,進而評選出真正符合採購需求的「最有利」廠商,為研究的動機之三。綜而言之,研究之目的,主要是以統計學理為基礎,除可將現階段最有利標評定之結果完整呈現外,並試圖構建出另一最有利標的評定方式與評選出真正符合採購需求的「最有利」廠商。研究之架構,以決策支援系統與SAS統計軟體為分析工具,運用多變量統計分析之多元尺度分析,來探討委員一致分析、理想廠商分析、廠商標竿分析、廠商定位分析與繪製廠商定位圖等,將各參與評選廠商的績效表現,展現於廠商定位圖上,為「最有利」的評選廠商,做出合理的判斷。最後,在研究中發現,透過實証分析,此架構適合現階段最有利標採購評選的制度,除可作為未來最有利標評定方式之一,同時可依廠商在各評選準則上之表現,作為未來工程採購單位與評選廠商進行協商時之參考,亦可作為管控決標廠商之依據,使政府能真正找到滿足採購需求的「最有利」廠商。
The use of the Most Economical Advantageous Tenders on government procurement is to eliminate the Abnormally Low Tenders which was used in the past on public contractors. According to the Ministry of Audit, Jan. 2005, there were over 870 cases used under the benefit of the Most Economical Advantageous Tenders within the year of 2001 and 2003. Because of this, the total tenders cost has gone over 80 billion NT Dollars, and it is still escalating, 140% in 2003. On the contrary, the Award Mechanism on the Most Economical Advantageous Tenders gradually shows its disadvantage. This study was based on Multivariate Statistical Analysis by using Multi-Dimensional Scaling Analysis method. It is to calculate a better way to construct the Most Economical Advantageous Tenders and select the most qualified contractors during the process of government procurement. As the study found, after the real analysis, the method the researcher used was the most ideal method for the Most Economical Advantageous Tender during government procurement at this point. It could be standardized as a method to be used in the future for our government, in gaining the satisfaction in contracting the best contractors during the process.