• 한국주거학회논문집
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• 제27권6호
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• pp.95-104
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• 2016

The purpose of this research is to compare housing wealth effects of home-owning single income couples (SIC) and dual income couples (DIC) on their non-durable consumption and to assess the effects by location, age groups, housing structure type, debt-to-asset ratio and employment status. Using the Korean Labor and Income Panel Study (KLIPS) of 2014, this empirical study identified 1,198 SIC households and 1,044 DIC households, and employed multiple regression analysis. The main results reveal that the difference of financial portfolios between SIC and DIC households was little but housing wealth effects were stronger among SIC households than DIC counterpart. It's evident that housing wealth effects were conspicuous for SIC and DIC households who were headed by wage earners aged over 40s, and resided in apartment outside the Seoul Metropolitan Area. However, household debt became a determinant in contradicting housing wealth effects of SIC and DIC households. While the household financial dimension was in proportion to income, DIC households didn't gain much financial security due to increasing expenditure. Further, this research imply that liquidity constraints explicitly posed a more serious threat to SIC households whose dependence on housing asset is larger than their counterpart.

• 한국주거학회논문집
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• 제28권1호
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• pp.83-93
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• 2017

This research intends to find out the impact of housing wealth of home-owning pre-retirees and older adults consisting of young-old, middle-old and old-old groups on their household consumption. In doing so, this research analyzes 2,350 home-owning households by utilizing the 17th Korean Labour and Income Panel Study (KLIPS). The results show that housing wealth has a statistically significant effect on non-durable consumption of the pre-retirees, and young-old and middle-old groups of older adults, and housing wealth has a much stronger effect on household expenditure than does financial wealth or real estate. It's found that the consumption elasticity is particularly greater for female-headed households living in SMA, residing in apartments, holding a lower debt-to-asset ratio and being a pensioner. The empirical findings imply that the old-old group of older adults is unlikely to actively tap into their housing windfalls since housing asset becomes the last to dispose in the course of an individual's life. As housing wealth effects are especially strong when liquidity constraints faced by older adults are removed, it's of significance to substantially reduce household debt before retirement in order to constantly maintain an adequate level of household consumption or to promptly prepare for future contingencies.

• Management Science and Financial Engineering
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• 제22권1호
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• pp.13-20
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• 2016

We investigate the optimal consumption and investment problem when a working debtor has an option to file for bankruptcy. By applying the duality approach, the closed-form solutions are obtained for the case of CRRA utility function. The optimal bankruptcy time is determined by the first hitting time when the financial wealth hits the wealth threshold derived from the optimal stopping time problem. Moreover, the numerical results show that the investment increases as the wealth approaches the threshold and the value gain from the bankruptcy option is vanished as wealth increases.

• KDI Journal of Economic Policy
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• 제30권2호
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• pp.1-26
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• 2008

본고에서 우리는 한국의 주택 부 효과의 크기를 재검토한다. 이를 위해 주택가격 상승에 대한 주택 보유자 소비지출의 반응인 '순수한' 주택 부 효과의 크기를 알아보는 데 중점을 둔다. 순수한 주택 부 효과를 측정하기 위해 거시시계열 자료를 이용할 경우, 주택 보유여부와 적절한 소비지출변수의 선정이라는 두 가지 문제가 제기된다. 우리는 먼저 비 주택 소비(non-housing consumption)가 보다 적절한 소비지출변수임을 보이며, 그 이유로 주택소비(housing consumption)의 상당 부분이 주택 보유자들의 실제로 지불하지 않는 귀속임대료(imputed rents)임을 제시한다. 이어서 우리는 거시시계열 자료로부터 구한 주택 부 효과의 크기를 얼마나 수정해야 주택보유자에의 순수한 주택 부 효과를 추정할 수 있는가를 살펴본다. 이를 위해 두 개의 구조적 모형을 설정하여, 전체 소비지출 중에서 주택 보유자 소비지출의 비중을 추정한다. 주택 보유자의 소비지출 비중을 감안하여 수정된 주택부의 효과는, 거시시계열을 이용하여 구한 통상적인 주택 부 효과의 추정치보다 크게 나타난다.

• 충청수학회지
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• 제27권1호
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• pp.145-149
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• 2014

I consider the optimal consumption and portfolio selection problem with nonnegative wealth constraints using the dynamic programming approach. I use the constant relative risk aversion (CRRA) utility function and disutility to derive the closed-form solutions.

• Journal of applied mathematics & informatics
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• 제36권3_4호
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• pp.301-306
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• 2018

I obtain the optimal portfolio and consumption strategies of an investor who have a Cobb-Douglas utility function. And I assume that there is negative wealth constraints. This constraints mean that the investor can borrow partially against her future labor income.

• East Asian mathematical journal
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• 제34권3호
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• pp.331-338
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• 2018

We investigate the optimal consumption and portfolio strategies of an agent who has a constant elasticity of substitution (CES) utility function under the negative wealth constraint. We use the martingale method to derive the closed-form solution, and we give some numerical implications.

• 가정과삶의질연구
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• 제20권2호
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• pp.113-122
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• 2002

This study compared the financial status between the employed-elderly households and the unemployed-elderly households, focused on income adequacy, expenditure adequacy and net wealth adequacy. Using data from 1997 KHPS, the lower financial status of the unemployed elderly households were found. Nine measures of financial status were used : income, per capita income, income-to-needs ratio, expenditure, per capita expenditure, expenditure-to-needs ratio, net wealth, net wealth-to-income ratio and net wealth- to-expenditure ratio. The results of this study showed that unemployed elderly households had 68%~77% of income adequacy and 72%~83% of expenditure adequacy for employed elderly households. Holding for gender, age, education, earners in the household, living area and home ownership constant, although the gap was getting smaller, significant differences between the unemployed-elderly households and the employed-elderly households were persisted. The result of this study indicated that the unemployed-elderly households and the employed-elderly households can not be regarded ac homogeneous group when public policies are developed.

• 재무관리연구
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• 제25권2호
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• pp.191-213
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• 2008

본 연구는 1999년부터 2006년까지 유가증권 시장 및 코스닥 시장의 인수합병 공시에 따른 주주와 채권자의 부의 변화 및 그들의 상호관계를 연구하여, 인수합병에 대한 부의 이전가설을 재검증한다. 주주 부의 변화는 공시에 따른 주가반응(Cumulative Abnormal Return, CAR)으로 측정하며, 채권자 부의 변화는 공시기업의 일반사채 수익률의 변화(Yield Spread Change, YSC) 및 신용등급의 변화로 측정한다. 실증분석 결과, 총 344개의 표본기업을 대상으로 한 인수합병의 합병기업(acquiring firm)의 CAR은 3.59%를 나타내어 인수합병 공시에 따른 주주의 부가 증가한다는 기존의 연구결과를 지지하였다. 채권관련 자료를 얻을 수 있는 2001년부터 2006년까지 총 35개의 합병기업의 표본을 대상으로 한 채권수익률 변화는 벤치마크로서 자기등급의 채권수익률과 국채수익률을 사용하는 경우 모두 음(-)의 값을 나타내어 채권자의 부 또한 증가한다는 것을 알 수 있었다. 또한 신용등급도 인수합병 1년 이후에 상승하는 것으로 나타나서, 기업의 인수합병 의사결정이 채권자의 부를 증가시키는 것을 발견하였다. 이러한 연구의 결과는 채권자의 부가 증가한다는 해외 선행연구와 일치하는 결과이다. 즉, 국내의 인수합병에서 합병 의사결정으로 인해 주주에게로 채권자의 부가 이전되기 보다는 채권자의 부 또한 증가한다는 것을 의미한다.

• Journal of Preventive Medicine and Public Health
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• 제42권5호
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• pp.275-282
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• 2009

Objectives : This study aimed to verify the association between wealth or income level and health status after adjusting for other socio-economic position (SEP) indicators among Korean adults aged 45 and over. Methods : Data were obtained from the 1st wave of Korean Longitudinal Study of Ageing (households: 6,171, persons: 10,254). We used self-rated health status and activities of daily living (ADLs) as dependent variables. Explanatory variables included both net wealth measured by savings, immovables, the other valuated assets and total income including pay, transfer, property and so on. Binary logistic regression was conducted to examine the relationships. Also, in order to determine the relative health inequality across economic groups, we estimated the relative index of inequality (RII). Results : The inequality of health status was evident among various wealth and income groups. The wealthiest group (5th quintile) was much healthier than the poorest group, and this differential increased with age. Likewise, higher income was associated with better health status among the elderly. However, these effects, as measured by the odds ratio and RII, showed that wealth was more important in determining health status of elderly people. Conclusions : This study suggests that economic capability plays a significant role in determining the health status and other health-related problems among the elderly. Particularly, our results show that health status of the aged is related more closely to the individual s wealth than income.