保險公司之經營效率如何，影響保險公司經營效率之因素為何，是國內外保險學者長期以來研究的議題。本研究以我國產險業為對象進行效率之研究，分別以財務中介法與附加價值法選取投入產出變數，以資料包絡分析法衡量產險公司之經營效率，並以Tobit迴歸分析公司型態、再保險比率、資產規模與產品集中度四項因素對效率值之影響，樣本期間自1988年至2004年，共17年。 效率值之逐年變動狀況顯示本國公司在財務中介法的效率值長期不如外商公司，且有逐年降低的趨勢；附加價值法則是外商公司逐漸追上本國公司。 Tobit迴歸分析顯示再保險之使用弊多於利，產險公司應加強核保，在承保能量範圍內盡量降低再保險之使用。產險公司應擴大規模，同時亦應積極開拓保險市場、加強投資，提高投資報酬率與資產報酬率。最後，產險公司應思考本身的優勢，集中經營某幾項險種，累積相關知識及經驗，以增進效率。

金融海嘯提供企業以最低成本進行併購的機會，企業藉此達到外部成長的目的，但併購案之綜效價值如何轉化成有意義的數值以幫助主併公司進行併購價格的評估是許多企業在進行併購時的疑問。 　　本研究的目的為運用企業評價中的EVA經濟附加價值法與實質選擇權法，來進行G公司收購N公司之併購價值評估。本研究利用EVA經濟附加價值法與實質選擇權評價法相互搭配，將各項決策所創造之彈性價值納入分析，更充分涵蓋併購策略的綜效價值。 　　研究結果顯示，若不考量選擇權彈性價值，則G公司收購N公司所付出之價格略高於EVA計算出之企業實際價值。加入了選擇權價值之擴充性，淨現值比收購價格高出很多，顯示主併公司在評估該收購案時，可能已考量策略彈性價值。 / Financial crisis leads to an opportunity for the enterprise to do mergers and acquisitions at the lower cost. The enterprise could achieve external growth by mergers and acquisitions. However, how to translate the synergy of merger into meaningful data to help acquiring companies evaluate the accurate acquisition price is a question for many enterprises during M&A. The objective of this study is to use the economic value added (EVA) method and real options method of enterprise evaluation methods to evaluate the acquisition cost of Company G’s acquisition of Company N. This study takes both economic value added (EVA) and real options method, including the analysis the flexibility value and further exploring the synergy of the M&A decision. This study includes that if the flexibility value of options is not considered, the premium paid by Company G acquiring Company N is slightly higher than the real enterprise value by EVA. However, if to include the flexibility of options value, the net present value is much higher than the acquisition cost, which may indicate that the acquiring company has taken flexibility value in to consideration when evaluating such M&A.