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Journal of the Korean Society of Hazard Mitigation 2013;13(6):15-20.
Published online December 31, 2013.
몬테카를로 시뮬레이션에 의한 순현재가치 평가 분석
정영배
Analysis and Evaluation of Net Present Value by means of Monte Carlo Simulation
Yungbea Chung
Abstract
In order to analyze of feasibility of project, for the construction remodeling and architectural prevention of disasters and so on, it is usually used probabilistic method for supplementation of deterministic assessment, and considered the uncertainty in the future. There is lots of necessity relationship with cost management, and propriety of project. In this study, it was analyzed, and evaluated with Monte Carlo simulation that the assessment of application the Net Present Value (NPV) which includes the main cause of the economic growth rate and inflation for what it was made the probability distribution model optimization. Assessment of the NPV institute the concept of growth rate from probability distribution for reflection of the uncertainty in the future as well as some initial conditions for the feasibility of project the Monte Carlo simulation were carried out. According to the simulation with 3 percentages of the growth rate, the result values of low level and high level for 99 percentages of the confidence level were 3753.86 and 3771.72, respectively. Also the coefficient of variation was obtained 5.58%.
Key Words: Monte Carlo Simulation; Net Present Value; Discounted Cash Flow; Growth rate
요지
리모델링 및 건축방재사업 등에 있어서, 합리적인 사업타당성 분석을 위하여 결정론적 평가의 보완과 다양한 요소의 불확실성을 고려해야 하는 경우에는 확률론적 방법이 활용된다. 사업 타당성 분석은 cost management와 관련이 깊다. 본 연구에서는 확률분포모델을 최적화하기 위하여 경제성장의 반영을 시도한 순현재가치 평가를 몬테카를로 시뮬레이션을 통해 평가 분석하였다. 순현재가치의 평가에 있어서 사업타당성을 위한 초기뿐 아니라 미래의 불확실성을 반영하고자 확률분포에 의한 성장률 개념을 도입 하였으며, 이를 통하여 미래의 변동 요소를 반영한 평가방법을 제시 분석하였다. 성장률 3%일 경우, 몬테카를로 시뮬레이션에 의한 NPV의 결과 값의 신뢰수준은 99%일 때의 하한 값과 상한 값은 각각 3753.86과 3771.72값을 얻을 수 있었으며, 변동성은 5.58%를 얻었다.
핵심용어: 몬테카를로 시뮬레이션; 순현재가치; 현금흐름할인; 성장률


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