隨著經濟發展及產業的轉型，閒置空間的產生乃成為失去價值或可利用的必然結果。台灣為將閒置空間活化再利用列為施政重點工作之一，並積極推動閒置空間再利用，希望以散佈在各地已廢棄不用而具有歷史意義的空間為對象，透過再利用的方式，將諸多閒置不用的建築、空間與環境，活化再利用為藝文空間。傳統市場一直沒落是全省長久以來的一個共同問題，市場是否公辦民營也是共同議題，有許多舊有市場空間被大量閒置、廢棄。政府為加強全省市場資產的活化保存及空間規劃利用的意識，對於推廣閒置空間活化再利用乃成為一個非常重要的課題。基此，本研究乃以模糊層級分析法，探討公有閒置空間再利用關鍵成功因素。文中以台灣省南投縣竹山鎮公有零售市場為研究對象。由分析結果發現，影響竹山鎮公有零售市場閒置空間再利用評估之四大關鍵成功因素依序為「維護管理項目」因素、「營運服務項目」因素、「經營模式建議」因素和「政策之可行性」因素。再經由近一步的層級串聯分析結果顯示，「足夠經費預算」、「環境清潔與安全維護」、「公有市場形象提升」、「停車位出租收費」分居前四名。

With economic development and industrial transformation, loss of value or reutilization becomes a certain outcome of vacant spaces. In order to treat vacant space reutilization as an important policy and actively implement vacant space reutilization, the government intends to treat vacant spaces with historic meaning in Taiwan as subjects, and turn vacant buildings, spaces, and environments into artistic spaces by reutilization. Nanton County is an agricultural county, which has been under financial difficulty for many years, and there is a large amount of vacant space. In order to reinforce the superiority in competitive of the public retail market of Jhushan Town in Nanton County, vacant space reutilization becomes an extremely important issue. Therefore, this study will assess the key factors affecting the superiority in competitive of public vacant space reutilization by Fuzzy Analytic Hierarchy Process (Fuzzy AHP). Analytical results showed that the order of the affecting four key factors of the public retail market, is: maintenance and management, service quality, operation service model, and implement policy.