摘要：Indonesian Islamic Banking Act requires conventional banks to spin-off their Islamic business units if they had fulfilled the spin-off criteria. Some of the Islamic business units had done the spin-off process although they are not fulfilling the spin-off criteria. The data showed that there is an efficiency decline after the spun-off. This study is going to examine the spin-off ’s impact on the efficiency in spin-off banks. The method used in this paper is a difference-in-differences analysis. The sample used is four spin’s banks as treatment objects and two Islamic full-pledge banks as control objects. This research shows that there is an impact of spin-off policy on the efficiency in spin-off banks. There is an efficiency decrease in spin-off banks after the activities. It implies that the spin-off policy is not the only strategy that can be implemented. The policy-makers can choose other strategies to enhance the development of Islamic banking industry.
关键词：spin-off;efficiency;Islamic banks;difference in difference;policy
