法拍屋市場已成為台灣重要的購屋管道之一，然而房地產為異質商品，其價格受到品質差異的影響很大。其中法拍屋底價的訂定方式和一般房屋不同：拍賣底價由公定房屋估價人員根據區域資料使用特徵價格理論方法先訂出初估價格，再與債權人、債務人三方協商討論而訂定。故本論文加入「定價偏誤」因子，以特徵價格模型探究民國八十九年至九十一年間影響台北縣市法拍屋拍定價格的各項因素及影響程度，並得出如下之結論: 1.影響台北縣市法拍屋拍定價格的顯著因子及影響幅度為:定價折價程度(影響幅度0.9798%)、總建物面積(影響幅度0.4709%)、土地持分價格(影響幅度0.4838%)、拍次(隱含價格-17.0308萬元)、競標人數(隱含價格7.611萬元)、房屋現況(非空屋)(隱含價格-18.950萬元)、房屋現況(出租)(隱含價格40.501萬元)、車位(隱含價格80.772萬元)、點交(隱含價格8.8073萬元)、建材(隱含價格69.748萬元)、建物型態(一樓) (隱含價格648.856萬元)、建物型態(大樓) (隱含價格674.94萬元)、建物型態(公寓) (隱含價格464.385萬元)、建物型態(透天) (隱含價格516.971萬元)、房價指數(隱含價格-8.888萬元)、區位變數(台北市) (隱含價格80.429萬元)。 2.分別比較台北縣市法拍屋資料，可以發現持分土地價格(+)、競標人數(+)、車位有無(+)、是否點交(+)對台北市法拍屋拍定價格影響較大;而總建物面積(+)、拍次(-)、建材(+)、建物型態、房價指數(-)對台北縣拍交價格影響則較大。 / Real estate properties are real assets that can produce goods and service in the economy. Among them, the foreclosure market has become an imperative means to acquiring a house. The auction market in Taiwan is composed of non-performing assets. They’ll have a discount up to 20% in every action. Is this a really good target to invest? In fact, houses are heterogeneity assets; they can only be estimated correctly by controlling of variables such as location variables and the physical condition of the property. Moreover, the listing price of foreclosure is quite different from that of an ordinary house. It is first calculated by appraisers, and the final listing price is obtained by the negotiation of the court, creditor and debtor. Thus, there could be mispricing of list price, and this mispricing is expected to have an impact on the selling price. This study applies Hedonic model and uses data from year 2000 to 2002 of Taipei City and Taipei County to examine the effect of these physical and foreclosure elements on the selling price of foreclosure and thus reach the following conclusions: 1.All the foreclosure and physical condition variables are remarkable in our sample, as well as the location variable. They are degree of underpricing, total building area, holding land price, the bid times, numbers of bidders, current status of this building, parking space, situation of handing over item by item, building material, object type, housing price index and location. 2.It shows that holding land price(+),numbers of bidders(+),parking space(+),situation of handing over item by item(+) have greater influence on the foreclosure selling price in Taipei city while total area(+),number of auctions(-), material used(+),object type, and housing price index(-) weight more on the selling price in Taipei county.