• 제목/요약/키워드: 패널 회귀분석

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Determinants of the Self-employed's In-Work Poverty (자영업자의 취업빈곤에 영향을 미치는 요인)

  • Ji, Eun Jeong
    • Korean Journal of Social Welfare
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    • v.65 no.1
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    • pp.147-174
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    • 2013
  • Until recently, self-employment workers are often excluded from labor market studies. Most relevant studies has focused on the determinants of entry into self-employment. However, the self-employment is highly exposed to poverty risk although they are working. Despite that, relatively little is known about the economic severity of the self-employed. This study uses data from the Korea Welfare Panel Study to examine the situation of the self-employed's in-work poverty and the determinants of in-work poverty among them. Major findings are as follows. First, self-employed people experience 3.5 times higher in-work poverty risk than employees. Especially, the ratio of own-account self-employed people living below the poverty line is similar with that of even precarious employees. Second, the extent of poverty of self-employment is more serious. Third, the proportion of self-employed among working poor is about 53% although self-employed workers are composed of only about 24% among working people. Fourth, temporary employees and self-employed people are more likely to be poor than full time employees according to logistic regression. It is statistically significant. It implies that it is desirable to regard the self-employed as the policy target group along with temporary employees. Fifth, the ratio of in-work poverty of self-employed aged 40-64 whose education level is low and the self-employed aged 40-64 who work in low-skilled service sector are higher than that of the other group. It implies that measures to alleviate their economic difficulties are urgently needed.

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The Effects of Individual, Family, and Environmental Factors on the Self-Esteem of Adolescents in Korea (개인, 가족, 환경요인이 청소년의 자아존중감에 영향을 미치는 요인)

  • Lee, Choojae;Kim, Soongyu
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.5
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    • pp.659-667
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    • 2019
  • The study examined the effects of individual, family, and environmental factors on adolescents' self-esteem. Individual factors were the adolescents' health status and their leisure activity experiences, while the family factors were families' socio-economic status(SES) and parenting styles. Three environmental factors focusing on the adolescents' school environment were studied, and they consisted of academic attachment, peer attachment, and teacher attachment. The study inquiries were as follows: which individual factors had an effect on the adolescents' self-esteem? Which family factors had an effect on the adolescents' self-esteem? Which environmental factors had an effect on the adolescents' self-esteem? Of all the factors considered in this study, which factors had the greatest effect on adolescents' self-esteem? This study used data from the 3rd Korean Child and Youth Panel survey of Korean students in the first grade of middle school, and the data were analyzed using multiple regression analysis using SPSS 18.0. The results were as follows: the most important factor that have an effect on adolescents' self-esteem was parenting style, while peer attachment, health status, and academic attachment were also found to significantly affect adolescents' self-esteem. In the conclusion, the researchers suggest various strategies based on results of the analysis to improve adolescents' self-esteem.

A Study on the Financial Structure Effect Factor and Business Analysis of Ocean Shipping Companies (국적외항선사의 경영실태분석과 재무구조 영향요인에 관한 실증연구)

  • Lee, Sung-Yhun;Kim, Young-Dae;Ahn, Ki-Myung
    • Journal of Navigation and Port Research
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    • v.43 no.4
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    • pp.264-272
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    • 2019
  • In this study, the rate of return on investment used as a proxy variable for the entity's value and financial structure (liability ratio) is related to positive balance. This is consistent with the Static Tradeoff Theory (STT) that the entity's value and financial structure are related to a positive balance because the capital expense of a debt (tax-saving effects) that is less than its equity cost before it is in financial difficulty. Also, operating profitability (EBITDA/Sales), investment safety, total asset growth, net working capital and depreciation expenses are related to negative (-) with financial structure (liability ratio). This is the result of an analysis consistent with the Pecking Order Theory (POT). Fuel costs, borrowing, total asset turnover, financial costs, and tangible asset ratios have a significant positive relationship with the debt ratio. This is consistent with the agency theory and confirms that excessive chartering expenses, such as the bankrupt H company, are the main factors that pressure the financial structure of Korean ocean carriers.

A Study on the Changes in Korean Ocean Carriers' Financial Ratios and Profitability Before and After the Bankruptcy of the H-Line Carrier (H선사 파산전후 국적외항선사의 재무비율 차이분석과 영향요인 연구)

  • Kim, Myung-Jae;Ahn, Ki-Myung
    • Journal of Navigation and Port Research
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    • v.44 no.6
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    • pp.541-549
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    • 2020
  • This study conducts differential analysis on the financial positions of Korean shipping companies before and after the bankruptcy of the H carrier, looking specifically at their financial ratios, profit and loss patterns, and other factors related to their financial operation. Firstly, it was discovered that major measures of financial health, such as average assets per carrier, were not affected by the bankruptcy of the H carrier. However, despite this, most carriers experienced large changes in profits and losses, with total sales and shipping revenues averaging 424.5 billion won and 381.7 billion won respectively before the bankruptcy, but falling by half to 252.1 billion won and 234.6 billion won after the bankruptcy. Additionally, charter revenues and expenses also dropped by more than half. EBIT/sales and pre-tax revenue margins were also heavily affected after the bankruptcy, with both figures averaging 8% and 3% respectively before the bankruptcy, but falling into the negative range at -2% and -8% post-bankruptcy, resulting in significant deterioration in operational profitability. The study concludes that there is an urgent need to establish a global sales network, improve cost structures, and consistently secure stable cargo in order to increase Korean carriers' profitability. Of all financial measures, liquidity and total asset efficiency were identified as the most severely-impacted by the H carrier bankruptcy, thereby requiring the most pressing policy addressing.

The Moderating Effect of Self-rated Health on the Association between Grandparenting and Depressive Symptoms among Grandparents (손자녀 양육이 조부모의 우울감에 미치는 영향에 대한 주관적 건강상태의 조절효과)

  • Song, Si Young;Jun, Hey Jung;Joo, Susanna
    • 한국노년학
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    • v.40 no.3
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    • pp.459-475
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    • 2020
  • This study examined the moderating effect self-rated health has on the association between grandparenting and depressive symptoms. The fourth wave (in 2012) of the Korean Longitudinal Study of Ageing (KLoSA) was used for the analyses (N=650). The Coarsened Exact Matching (CEM) method was applied in order to ensure randomness in the selection of grandparents who participated in grandparenting and those who did not. The dependent variable was depressive symptoms, the independent variable was grandparenting, and the moderating variable was self-rated health. Control variables were education level, age, household income, gender, marital status and life satisfaction. After matching data by CEM, weighted multiple regression was applied with STATA 13.0. Also, simple slope analysis and region of significance were performed to interpret the interaction terms. The results showed that self-rated health had a significant moderating effect. Specifically, for grandparents with high self-rated health, grandparenting was associated with a lower level of depressive symptoms. On the contrary, for grandparents with low self-rated health, there was no difference depending on whether they participated in raising grandchildren. Based on these results, we discussed the need for consideration of self-rated health for grandparents who participated in grandparenting.

The Association between the Number of Chronic Diseases and Depressive Symptoms among Korean Elderly Men and Women: The Moderating Effect of Marital Satisfaction (남녀 노인의 만성질환 수와 우울감의 관계: 배우자 관계 만족도의 조절효과)

  • Kong, Hee Jin;Jun, Hey Jung;Joo, Susanna
    • 한국노년학
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    • v.40 no.3
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    • pp.511-530
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    • 2020
  • The present study aimed to examine the moderating effects of marital satisfaction (MS) on the association between the number of chronic disease (CD) and depressive symptoms (DS) among ol der men and women. The 6th wave of the Korean Longitudinal Study of Ageing was utilized and the sample was married men (N=585) and women (N=460) aged 65 and over. Multiple regression analysis using SPSS WIN 25.0 and Process Macro was used to test moderating effects of MS. Control variables were age, education, household income, parent-child relationship satisfaction, self-rated health, cognitive function, current smoking status and CD of spouse. Resul ts from elderly men showed the moderating effect of MS was significant. Specifically, those with more CD were more likely to report higher level of DS in the low MS group. However, the effect of CD on DS was not significant in the high MS group. Results from elderly women showed the moderating effect of MS was not significant. This study showed the moderating effect of MS on the association between CD and DS differed by gender in later life. It suggests practical intervention to utilize the resources of spouses is in need to promote mentally healthy aging even though having chronically ill in later life.

The effect of policy on Korean personal assistance service for persons with disabilities of labor market participation (장애인활동지원서비스제도의 노동시장 참여에 대한 정책효과)

  • Kim, Song Sook;Kim, Yoo-Min;Na, Ga-Yeon;Baek, Seung-Hee;Lee, Kun-Chul
    • Journal of the Korea Convergence Society
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    • v.12 no.4
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    • pp.267-274
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    • 2021
  • This study used data from the 6rd and 12th year of the Korean Welfare Panel to evaluate the effects of the Personal Assistance Service(PAS) system on the labor market of PAS users' participation. For the purpose of this study, 64 program groups using the Korean PAS and 344 control groups not using the Korean PAS were selected using Caliper matching among the propensity score matching. A chi-square test was used for the difference in characteristics between groups, and a simple difference-in-differences (DID) model and a double-difference multiple regression analysis of DID were performed to estimate the effect of thepolicy before and after the Korean PAS. As a result of the study, it was found that statistically, PAS had no significant effect on the labor market. This is due to the low number of system users, resulting in low post-hoc power, incomplete matching and limited availability of PAS Assistants for Disabled People. Therefore, In order to demonstrate the effectiveness of the Personal Assistance Service(PAS) system, specialized services and systems that meet the needs of the disabled and household members should be implemented.

Poverty Alleviation Effect for the Old Aged of Public Pension in Advanced Capitalist Countries : a Difference in Difference Approach (선진자본주의국가 공적연금의 노인 빈곤완화효과 : 이중차분접근)

  • Ji, Eun Jeong
    • Korean Journal of Social Welfare Studies
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    • v.42 no.4
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    • pp.263-293
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    • 2011
  • There have been many studies on the relationship between welfare states and the poverty. Yet, only a few studies have been addressed the poverty alleviation effect of public pension using difference in difference(DID). This study aims to analyze poverty alleviation effect for the old aged of public pension in 10 OECD countries using DID considering welfare states regimes. The empirical analyses are based on panel data of individuals aged 50 and over from two sources: SHARE in Europe(wave I~II) and HRS in USA(2004~2006). As a result of simple DID, this study provides evidence that the poverty rate of the old aged who has not been received the pension is increased, while the poverty rate of pensioner is sharply decreased. The anti-poverty effect of public pension using DID is 45.6% which is bigger than that of pre/post approach. The policy impact used by pre/post approach in conservative welfare regime is underestimated while those in liberal and socialist regime are overestimated. In last, GDP growth rate has not significant while public pension contributes to poverty alleviation effects of the old aged. Poverty alleviation effects of public pension are also varied with welfare state regimes. The poverty alleviation effects of public pension in conservative welfare and social democratic welfare state regime are significantly bigger than that in liberal welfare state regime.

The Effects of Environmental Factors on the Multicultural acceptance of Adolescents in Korean Schools (청소년의 다문화 수용성에 영향을 미치는 요인 환경요인을 중심으로)

  • You, Anna;Kim, Soongyu;Lee, Choojae
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.8 no.1
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    • pp.221-228
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    • 2018
  • The purpose of this study is to examine the environmental factors influencing the multicultural acceptability of adolescents, and to improve the multicultural acceptability of adolescents. This study seek to confirm family environmental factors, school environmental factors, community environmental factors on the multicultural acceptability of adolescents, and provide an alternative to increase the multicultural acceptability of adolescents. This study used data from the first grade of middle school in the Korean child and youth panel data, and a total of 2,278 data were used for analysis. The analysis was done by multiple regression analysis through SPSS 18.0. The results were as follows: the environmental factors shown to significantly affect the multicultural acceptability of adolescents were school factors, such as school adaptation, and community factors, such as community awareness and community consciousness. As a result, it was found that school adaptation, school environment factors, community awareness and community consciousness affect the multicultural acceptability of adolescents. These results suggest that the role of school environment and community environment is important for enhancing the multicultural acceptability of adolescents. In the school environment, various education and programs should be prepared, and in the community environment, it is necessary to strengthen the role of the community and community consciousness.

Longitudinal Relationships between Academic Achievement and School Satisfaction :Using Fully Autoregressive Cross-Lagged Modeling and Multi-group Analysis by Poverty Status (학업성취와 학교만족도의 종단적 상호 관계 : 빈곤 및 비빈곤 집단 차이를 중심으로)

  • Park, Hyun-Sun;Lee, Hyun-Joo;Chung, Ick-Joong
    • Korean Journal of Social Welfare Studies
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    • v.42 no.3
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    • pp.183-206
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    • 2011
  • This study examined the longitudinal relationship between academic achievement and school satisfaction using a data of the Seoul Panel Study of Children(SPSC). Fully autoregressive cross-lagged analysis and multi-group comparison were performed to measure the longitudinal relationship between two constructs as well as differences between poverty and non-poverty groups. The results showed that both academic achievement and school satisfaction were stable over time in non-poverty group. Academic achievement at the 4th grade significantly affected the school satisfaction at the 6th grade and it subsequently affected on the academic achievement at the 8th grade in non-poverty group. In contrast, academic achievement was not consistent over time in poverty group. Only the school satisfaction at the 6th grade affected the academic achievement at the 8th grade. The findings of this study have various practical implication for school interventions. It is more important to keep supporting the children to maintain the level of academic achievement in non-poverty group. While, in poverty group, it is essential to make school satisfaction and academic motivation increase with school attachment programs.