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유호실(Ho-Shil Yoo),양세정(Se-Jeong Yang) 가정과삶의질학회 2017 가정과삶의질연구 Vol.35 No.4
The purpose of the study is to examine how the household financial status of single person households differs from multi person households and differs with age groups. 1,711 single person households and 7,240 multi person households were analyzed using the 2015 Household Financial and Welfare Survey data. The results of the study were as follows. First, for single households, 63.9% were female, and 50.2% were old age households. And 45.9% of them were unemployed. Second, single person households had a bigger portion of transfer income than multi person households. Single person households had a bigger portion of expenditures for necessities like food, health care and housing than other. Household income for multi person households was 3.15 times higher than that of single person households and household expenditures were 2.93 times higher. Average consumption propensity was found to be 81.9 for single person households and 60.7 for multi person households. Total assets of multi person households were 3.08 times higher than that of single person households and debts was 4.25 times higher. Third, Household income for old aged households was 1/3 of young aged households. For young aged households, 84.2% was from labor income, while for old aged households, 42.1% and 25.8% were from public and private transfer incomes. Fourth, household expenditure per year for young aged house holds was 19,691 won, which was the most when compared with middle aged and old aged households. Older single house holds tended to spend less than younger single households. Old aged households spent 576 thousand won per month. Household income for young aged households was 3.7 times higher than that of for old aged households, and household expenditure was 3.5 times higher. Food expenditure for the old aged group was half of what the young aged group spent. The old aged group spent more on health care and the young aged group spent more on education, communication and transportation compared to other groups. Fifth, middle aged single households were found to have more assets and debts than other groups. The portion of financial assets was the biggest for the middle aged group and real estate assets was the biggest for old aged single households. Sixth, after other variables were found to be constant, age groups, education and occupation were found as significant variables for household income, expenditure, assets and debts.
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최장훈 국가통계연구원 2016 통계연구 Vol.21 No.1
This paper shows how to select appropriate mortality projection models and how the projected mortality generated by the selected models can influence the financial status of the national pension. The future mortality trends are influenced by not only the past mortality trends but also various outer factors which are not easy to apply because the application requires subjective decisions. Thus in this paper we choose the projection models based on how accurately the models can reflect past trends on the future. Accuracy tests are performed on 1-factor LC, 2-factor LC, LL, CBD, expanded CBD models and the models are selected based on SSE (Sum of Squares of Errors). The data used for the tests are 1983~2010 abridged life tables of Statistics Korea. Then life expectancies, population structure and financial status of the national pension produced by the selected models are compared with the ones produced by Statistics Korea. The results show that 2-factor LC and LL models are selected as the two best models for male and female, respectively and as of 2060 the life expectancies produced by the selected models are 3.3 years and 2.7 years longer than the ones produced by Statistics Korea, respectively. Therefore the accumulated fund of the national pension is depleted 2 years earlier than the result of the 3rd financial projection of the national pension.
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