본 연구는 보증금을 주거비로 전환하는 다양한 방식을 살펴보고 각각의 방식으로 산정된 주거비가 가구의 주거비 수준을평가하는 데 얼마나 효율적인가를 비교·분석하는 데 목적이 있다. 특히 정책적으로 가장 널리 활용되고 있는 전월세전환율을 적용하는 방식의 적정성을 살펴보고 개선방안을 제시하고자 한다.
Housing costs are widely used in the housing policy and related research. When calculating housing costs in Korea’s rental market, which is dominated by large deposits such as Jeonse, the method of converting deposits must be considered. However, discussions on converting deposits into housing costs are lacking. The purpose of this study is to compare various deposit conversion methods for calculating housing costs and determine the most efficient method. Four deposit conversion methods. Opportunity cost, financial cost, opportunity cost and financial cost, and Jeonse-rent conversion rate. The efficiency of a method was measured using a demand model in the economic aspect and a choice model in the behavior aspect. Consequently, a difference was noted in the calculation of housing costs according to the deposit conversion method. According to the calculation method of housing costs, the most effective deposit conversion method was to consider both opportunity and financial costs. The method using the Jeonse-rent conversion rate was the least effective. A method considering opportunity and financial costs must be applied to measure more realistic housing costs.