• Journal of the Korean Data and Information Science Society
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• v.27 no.1
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• pp.179-189
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• 2016

The purpose of this study was to investigate the mediating effect of depression on the relationship between self-esteem and life satisfaction of children from low-income class. The subjects were 385 children from low-income class in two municipalities. As research methods, frequency, descriptive, correlation statistical analysis using SPSS 20.0 program was conducted. The hypothesized model was tested using structural equation model to identify that model fits best to the collected data. The analysis indicates that depression had direct and negative effects on the life satisfaction. Depression mediates partially the relationship between self-esteem and life satisfaction. This study provides theoretical and practical implications for increasing self-esteem had positive effects on decreasing depression and pressing for improvement of life satisfaction level of children from low-income class.

• Korean Journal of Construction Engineering and Management
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• v.13 no.4
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• pp.100-109
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• 2012

Large road construction projects are typically partitioned into sections that are then contracted individually to contractors. Each section requires using similar heavy equipment including excavators, dump trucks and pavers, which constitute the highest cost. Normally the equipment is not shared between them, as each contractor wishes to have their equipment readily available. However, such practices result in very low utilization of these equipment. The goal of this research is to develop a programmatic resource sharing system in which contractors can share equipment depending on the changing needs of a multi-sectioned road project. This paper introduces the results of a survey performed to investigate how contractors currently manage the supply and demand of equipment and the equipment that are practical for sharing across a project. More importantly, the paper describes a set of metrics (DPR, nDPR, SDI) needed to quantify the amount of supply/demand variance occurring in each section. The metrics were used on an actual road construction project, and the results show that each section suffers from an imbalance between its monthly planned and actual utilization of equipment. The results also indicate that the sharing of the equipment can lead to potentially large savings as equipment requirements can be met within a project as to short leasing from outside vendors.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.9
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• pp.146-156
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• 2017

In this study, the causal relationship between the main factors influencing the import of agricultural products and the changes in agricultural imports was investigated. In addition, we compared the magnitude of the impact of each factor on the changes in agricultural imports. It was found that the import liberalization rate, which represents the FTA factors and reflects the per capita GDP, the conditions of supply and demand of agricultural products in exporting countries and the changes in exchange rates, affects the changes of the agricultural products imports. However, the factors affecting the change of the imports by agricultural product category and the magnitude of the influence by each factor were different. This shows that various factors, other than the FTA factors, are compounding the changes in the agricultural imports. In the future, the market openings due to the implementation of the FTA will be further enlarged and the economic territory of the FTA will be further expanded, due to the implementation of additional FTAs, and the changes in the imports of agricultural products will cause damage to the domestic agricultural sector.

• The Korean Journal of Applied Statistics
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• v.28 no.4
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• pp.643-661
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• 2015

Korea Teachers Pension (private school pension) is a mandatory pension and a social security system for private school teachers to ensure the stability of subscribers by a supplying pension when they (and their dependents) face future economic risk due to retirement or death. Therefore, the Teachers Pension must provide stability and sustainability in regards to adequacy of income and to function as a pension. However, the Government Employees Pension System (GEPS) of Korea (the most representative special occupation pension) recorded a fiscal deficit in 2001 and with an accumulated deficit that is expected to grow; subsequently, various plans for the reform of GEPS have been actively discussed. The Korea Teachers Pension system is based on the GEPS scheme and is not free from the GEPS discussions on reforms of national pension. The current system for the Teachers Pension needs to be improved because it is expected to be depleted within the next 30 years due to low fertility and an aging population in Korea. This study discusses existing Teachers Pension schemes problems and suggests a projection method and revised plans to improve it. We use long-term financial projections of the Teachers Pension to estimate the fund exhaustion point and the minus balance of the financial scale as well as analyze the supply-demand burden structure that reflects the future population structure to propose Teachers Pension reforms that will improve stability and adequacy.

• Journal of Korea Water Resources Association
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• v.53 no.spc1
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• pp.765-772
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• 2020

The amount of water resources identified by water balance analysis are usually used to formulate water resources plans. However, this does not consider the trade in goods between countries. It is possible to use virtual water to come up with a supply and demand plan by looking at the export and import of products. This is because it looks comprehensively at the direct water use (water resources within the region) and indirect water use (water resources of other regions from imported products). Yet South Korea does not actively use the concept of virtual water in the national water resources plan. There is difficulty with calculating and identifying the appropriate virtual water amount as many of the research papers present only few of the cases or omit the calculation process. This paper introduces detailed water footprint values for calculating the virtual water trade for South Korea. The international movement, water footprint, and virtual water trade of agricultural and livestock products are presented and compared to existing research. The water footprint and virtual water research in this paper can be utilized as baseline data for future researchers.

• Korean Journal of Social Welfare Studies
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• v.42 no.2
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• pp.205-233
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• 2011

This study aims to fathom the relationship between socio-economic security and social cohesion which are two sub-domains of Social Quality, on the institutional context of welfare state. In order to grasp the institutional context of welfare state, the study adopted welfare status theory and measured socio-economic resources of individuals via the status as welfare beneficiary and welfare taxpayer. The study postulates a theoretical model that the socio-economic security domain affects the social cohesion domain. In order to verity the theoretical hypothesis, this study utilized structural equations analysis(SEM) using social survey data conducted in year 2008. Recognition of social trust was included as the core index of social cohesion, and welfare statuses, socio-economic security and social trust were inserted in the sequence. Results revealed that the amount of resource in regards to welfare status of rights had significant influence on the socio-economic security, whereas it had no significant relations in regards to welfare status of duties. The recognition of socio-economic security derived from status of welfare rights and duties were positively associated with recognition of social trust. Also, the recognition of socio-eocnomic security turned out to have significant influence on social trust. Conclusively, among the two sub-domains of Social Quality, the study found that the socio-economic domain has influence on social cohesion domain. Such results suggest that in order to enhance the overall social cohesion in Korea, more delicate arrangement of welfare institutions are required.

• 한국노년학
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• v.39 no.3
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• pp.517-529
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• 2019

The study was conducted on the impact of employment types middle and old age group of wage earner on life satisfaction and analyzed by dividing it into variables in the employment types and demographic characteristics. Based on the data for the 12th year of the Korea Welfare Panel Study, 1,244 respondents who answered that the main types of economic activities were 'full-time, temporary, daily wage earners' or 'self-help labor, public labor, and elderly empolyment program in public sector.' among 4,341 people over 55 years of age under the age of 75 as of 2017 standard. The survey covered 1,244 people. By age group, 826 people aged 55-64 (middle-age group) and 418 people aged 65-74(old-age group). Middle age group showed that education level, spouse, health condition, beneficiaries of basic livelihood and average monthly income variables were the factors that influence the satisfaction of life. But The type of employment did not significantly affect. Old age group showed that the higher education level, in spouse with-living or spouse death, the better health condition is perceived, the less experience of beneficiaries of basic livelihood, the higher average monthly income, the more satisfied life is. The survey also found that old-aged people who participate in "self-help labor, public labor, and elderly employment program in public sector" are also found to be more satisfied with their lives. According to these results, policy for the old age group should be focused on hunting and expanding of employment program in public sector for the elderly. In order to boost life satisfaction of the elderly, more intensive vocational education and employment training should be provided.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.8 no.1
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• pp.235-242
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• 2013

For people with disabilities, getting a job makes it possible to advocate their own human rights, to improve their self-esteem and self-efficacy, to narrow economic, psychological and social divide between them and those without disabilities and ultimately to attain social integration. According to recent statistical data, there was an increase in the weight of people with disabilities, but their economic activities were on the wane, and it's required to explore what curbs the employment of people with disabilities to find feasible solutions. The purpose of this study was to examine influential factors for the economic activities of people with disabilities. The subjects in this study were the selected people with disabilities in the metropolitan area, on whom a survey was conducted to make an empirical analysis. The findings of the study were as follows: The people with disabilities engaged in less economic activities when they were basic livelihood security recipients, when they were older, and when they were female. And those who underwent job training and who were certified technicians were more likely to participate in economic activities. Therefore differentiated policy setting is required to boost the economic activities of people with disabilities after their general characteristics, characteristics as human resources and characteristics related to vocational training are carefully analyzed. As for general characteristics, whether they are basic livelihood security recipients or not should be considered to assess the degree of their poverty, and their gender, age and presence or absence of spouses should all be taken into account. In terms of vocational training, their certificates and job training experience should be investigated.

• Journal of the Korean Regional Science Association
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• v.35 no.4
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• pp.61-73
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• 2019

Urban development and densification have led to the Urban Heat Island Effect, in which the temperature of urban space is higher than the surrounding areas, and the intensity is increasing with climate change. In addition, when the city's air temperature rises in summer, low-income, elderly population, and socially vulnerable people who have health problems lack the ability to cope with the elevated heat environment. Therefore, this study aimed to identify the urban heat island area of Seoul through Hotspot analysis, which is a spatial statistics technique, and explored physical environments, demographic and socioeconomic characteristics of urban heat island effect areas using logistic regression models. This study performed urban heat island hotspot analysis using the average air temperatures of the 423 administrative dongs in Seoul. Analysis results identified that the urban heat islands were concentrated in Jung-gu, Jongno-gu, Yongsan-gu, and Yeongdeungpo-gu. Logistic regression analysis results indicated that urban heat island areas of Seoul were affected by residential floor area ratio, commercial facility floor area ratio, overall floor area ratio, impervious surface ratio, and normalized difference vegetation index(NDVI). In addition, as a result of analyzing the vulnerable area of thermal environment considering the demographic and socioeconomic characteristics of the heat island area, urban heat island areas of Seoul were significantly associated with the proportion of low-income elderly living alone. The result of this study provided useful insights for urban thermal environmental design and policy development that could improve the thermal environment for the socially disadvantaged urban population.

• Journal of dental hygiene science
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• v.6 no.4
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• pp.255-261
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• 2006

The purpose of This study was to survey the present state and prospect of geriatric denture prosthetic dentistry among community dental hygienists in Korea. Questionnaires about the present state and prospect of geriatric denture prosthetic dentistry were distributed to the community dental hygienists in Korea, July 2006. Collected questionnaires from 89 cases were analyzed. All collected data were analyzed using the SPSS program. The significance of differences among groups were assessed using chi-square test or Fisher's exact test. The results of this study were summarized as follows: The public relations of the geriatric denture prosthetic dentistry were enforced good, mainly by village offices. Appointed dental clinics made a production of full dentures connecting in Korean Dental Association. Above findings suggest that further study about the present state and prospect of geriatric denture prosthetic dentistry is necessary in improving the oral health related quality of life in elders.