本文目的為建構我國總體經濟計量季模型,用以進行總體經濟情勢預測,並利用該模型進行敏感性分析。文中模擬了國際情勢變動對總體經濟的衝擊,如國際油價與大陸國民生產毛額的增減,以及分析政府財政政策改變之影響效果。 模型的建立過程以時間序列的單一方程式作為起點,在經濟理論的基礎下,設定所有行為方程式及定義式,進而進行聯立方程式的求解。並以模型靜態測驗及樣本內配適情況來檢驗模型配適度,靜態測驗的樣本期間為1983年第一季到2004年第四季,並預測2005年第一季至2008年第四季的國內經濟走勢。2005年至 2008年的各季經濟成長率之預測約為2 %至6 %,失業率則處於4.07 %至5.06 %之間;消費者物價指數自2005年的101.31上升至2008年的104.767;金融部門方面,貨幣數量、存放款量、各利率亦呈略微上升之勢,新台幣對美元之匯率則為32至 34:1區間。大致來說,樣本內的配適大都良好,而樣本外的預測結果也都呈現平穩而未有大幅波動的情形。 敏感性分析分三部分,首先為原油價格漲跌的敏感性分析,分析結果仍可發現油價的起伏對國內經濟的影響依舊相當可觀。政府暫時性的擴張或緊縮財政政策對經濟的影響,也將僅有暫時性的效果,且對民間投資的排擠效果明顯而強烈。最後則以近年來影響全世界甚劇的中國大陸經濟狀況來作敏感性分析,結果呈現出大陸經濟成長也將牽引國內經濟成長,卻使失業率持續增加之結論。文末則點出未來維護及修正模型的方向。
The purpose of this thesis is to build a macro-econometric model for Taiwan economy. After that we use it to predict economy in the future and perform scenario analysis when the unpredictable shocks happen. We generate the prediction of the economy from the first quarter in 2005 to the forth quarter in 2008. Moreover, we conduct the scenario analysis concerning the variation of international circumstances, for example the fluctuation of oil price per barrel, China’s economic growth. In both cases, we also show their impacts on the fiscal budget in the government. The range of the GDP growth rate predicted from the first quarter in 2005 to the forth quarter in 2008 in this macro-econometric model is between 2 % to 6 %. And the predicted range of unemployment rate is between 4.07% to 5.06%.The trend of other financial variables ascends gradually and smoothly. Generally speaking, the model’s predictions perform well and without any sharp rising and falling. The results of scenario analysis demonstrate the oil‘s price still impact domestic economy a lot. When the price per barrel rises up to $80 permanently, most price index increase quickly and domestic economy declines. The direction of future study and improvement are appointed in the end of this thesis.