공공투자 사업의 경제성분석을 위한 사회적 할인율 추정

초록

In this study, re-estimation of appropriate social discount rate is proposed to reflect the changed economic environment since 2007 including the global financial crisis and the lowering interest rates. Based on the Ramsey's estimation method, the appropriate level of the social discount rate for the public investment project is derived to be 3.3∼4.5%. Considering the case studies on the other countires and the changing tendency of the government bond interest rates, reduction of about 1%, compared to the current 5.5% level of the social discount rate, seems to be appropriate.

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