소득계층별 기대여명 차이를 반영한 국민연금 노령연금수급자의 수급부담구조 분석

Abstract

Abstract This paper discusses life expectancy differentials of beneficiaries of national pension old-age benefit andbenefit-cost analysis in Korea. These results are useful indicators for the assessment of retirement incomesecurity of beneficiaries and old-age benefits. This paper analyzes benefit-cost ratio, internal rate of returnand generation transfer amount, using life tables by lifetime incomes. The result of the actuarial analysis formale life expectancy is approximately 21.69 to 24.63 years. The result of the actuarial analysis for femalelife expectancy is approximately 27.63 to 29.81 years. The result of the actuarial analysis of low incomelevel is that the benefit-cost ratio is lower approximately 2.68 to 4.83%, the internal rate of return lowerapproximately 0.00 to 0.74%, the generation transfer amount lower approximately 3.00 to 5.74%, than totalincome level. The result of the actuarial analysis of high income level is that the benefit-cost ratio is higherapproximately 2.07 to 4.98%, the internal rate of return higher approximately 0.03 to 1.73%, the generationtransfer amount higher approximately 2.53 to 9.68%, than the total income level. The results by incomevaries due to the effect of income redistribution and life expectancy on the national pension.Keywords: Beneficiary of old-age benefit, benefit-cost ratio, income level, internal rate of return, generationtransfer amount, life expectancy, national pension.