신용카드 대출금리의 기본원가 민감도 분석

This study analyzes the sensitivity of the basic cost of credit card loan(long-term) and cash advanced(short-term) interest rate based on the best practice. Previous studies have shown that credit card lending rates are affected by competition and information asymmetry in the credit card industry, but this study analyzes the impact of basic costs (credit, capital, issuing bond and business costs) on lending rates in accordance with the cost-based interest rate calculation system, which is the actual credit card company's credit card loan and cash advanced interest rate calculation principle. In addition, the cost items included the provision of interest rate caps and loan model standards to analyze the regulatory impact in calculating lending rates. The analysis results showed that the basic cost of the loan rate, excluding credit costs, showed a significant positive (+) result in actual credit card loan and cash advanced rates, and credit card loan rates were more sensitive to sales management costs than costs of issuing bonds. Although the change in the interest rate ceiling among lending regulations has significantly affected the reduction of interest rates, it is analyzed that the establishment of best standards for credit card lending has the effect of interest rate cuts only in credit card loan. However, the credit cost (probability of default) represents a negative relationship with the credit card interest rate, which can be interpreted as a result of the change in the average interest rate of each company due to the screening of credit card company's loan rather than the individual cost increase factor.