• Journal of Korea Technology Innovation Society
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• v.15 no.2
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• pp.323-344
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• 2012

We investigate and analyze the effect of population density on digital divide in Africa by applying the panel data analysis therein. From the estimation results based on the panel data analysis, it has been found that population density as well as both levels of income and education has a significant effect on the digital divide in African region. In particular, the fact that the variable of population density makes a significantly influential role implies that the construction cost of information infrastructure in Africa behaves such a considerable obstacle to Africa wishing to enter into information society. In conclusion, throughout the integration of the estimation results in the paper, the following implications for economic cooperation with Africa can be drawn. The estimation results mentioned above strongly imply that the variable referred to as population density should be considered in selecting which countries to assist for construction of information infrastructure.

• Journal of Global Scholars of Marketing Science
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• v.11
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• pp.129-146
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• 2003

This study explores whether a NBD type of model can be applied to characterize the underlying frequency distribution of online consumer's visit behavior. In this study, the following two research questions are addressed: (1) How can we characterize the underlying distribution pattern(s) of the number of repeat i i visits to a site? (2) How can consumer's Internet usages and his/her demographics affect the average number of visits to the site? Through the empirical investigation, this study found that NBD models are directly applicable to characterize the underlying distribution of visit frequency on the Internet. Furthermore, this study addresses some managerial implications for understanding how site visits are determined. Especially this study highlights the relationship between repeated visits and the visitors' Internet Usages and demographics. The proposed models are estimated and validated by online panel data that covers more than 1000 different sites and has 800,000 observations.

• Journal of Korea Entertainment Industry Association
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• v.14 no.2
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• pp.213-224
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• 2020

Purpose: This study is a descriptive and secondary analytical study that uses panel data to identify the factors of medication adherence to improve life care of hypertensive patients. Methods: The subjects of this study were 2,484 patients who were taking medication after hypertension using Korea Medical Panel 2015 data (β-version 1.0). Data analysis was performed using Chi-Square, Scheffe's test, and logistic regression using SPSS/win 22.0. Results: The level of medication adherence in patients with hypertension was 94.2%. The factors of medication adherence were gender and age in Model I of demographic factors, and the presence of disability, smoking, and drinking in Model II. Model III, which added drug use factors, was identified as drinking, drug duration, side effects, drug satisfaction, and payment of drug costs. Conclusion: In order to improve life care for hypertension patients, education and interventions on the importance of take medication and side effects of medications and how to take them will be needed in the early stages of diagnosis.

• Korean Journal of Social Welfare Studies
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• v.41 no.3
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• pp.327-348
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• 2010

This study aims to understand whether the effect of poverty is translated to adolescents' mental health though their exposure to violence, which is aggravated by the dangerous environments of the neighborhoods. For this purpose, the study analyzes whether poor adolescents tend to reside on neighborhoods with toxic environments, and whether living in the disadvantageous neighborhood causes the poor adolescents to experience greater violence victimization and fear of violence, and eventually, greater depression and anxiety. The study utilizes secondary analysis of longitudinal data of the Korea Youth Panel Survey. Structural Equation Modeling is used as an analysis method. The study results reveals that poverty has both direct and indirect effects on the level of adolescents' symptoms of depression and anxiety. Especially, poverty affects adolescents' depression and anxiety indirectly through increasing the possibility to reside in more dangerous neighborhoods. Explaining more in detail, living in dangerous neighborhoods seems to expose adolescents more to violence and fear of violence in the neighborhoods and this experience increases the level of depression and anxiety. The study argues that the negative effects of poverty on adolescents should be examined from the view of neighborhood environments. Finally, the study discusses the importance of increasing neighborhood competency as practice and policy implication.

• Journal of the Health Care and Life Science
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• v.11 no.1
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• pp.105-114
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• 2023

This study aims to analyze the secondary data of disease distribution and medical service behavior according to gender and income by using the 17th wave data of the Korea Welfare Panel, which is being distributed in April 2023. Data for 7,865 people of raw data generated using the R language were collected, and among them, missing values (NA, - 2,012) were analyzed for 5,853 people. For analysis, average income by health status and gender, relationship with chronic diseases, outpatient visits to medical institutions by gender/age group, type of medical institution used by age group, and annual health checkup usage rate by gender/age group were examined. Through this, the medical utilization rate was higher in men than in women, and the utilization rate of hospitals and clinics was high.

• Advanced Industrial SCIence
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• v.3 no.3
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• pp.29-35
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• 2024

This study aims to analyze the impact of economic indicators (economic growth rate, employment rate, inflation) on individuals' mental health, particularly the occurrence of depression, and to clarify the correlation between economic stability and mental health. Data on economic indicators and depression were collected from public data portals and national statistics, and then refined and analyzed using Python and Pandas. Data visualization was performed using Seaborn and Matplotlib. The results showed a strong correlation between economic instability and increased depression rates, with a tendency for the number of depression cases to rise during periods of inflation and declines in economic growth. Additionally, certain age groups and genders exhibited higher depression rates, with social isolation and economic difficulties identified as major contributing factors. This study contributes to mental health policy development, and further research considering various social factors is needed.

• Journal of Korea Game Society
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• v.19 no.2
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• pp.5-22
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• 2019

This study analyzed the causes of over-flow of adolescent games as loneliness, lack of self-control, parents-open communication, peer-emotional support and the game motivation(immerse, social relations, achievement). For analysis, the research data, 'Game User Panel Research(1 to 4 years)', was provided by Korea Creative Content Agency. As a major result, adolescence loneliness and lack of self-control directly affected game over-flow, and the game's achievement motive in their relation of influence was mediated. Over time, the structure of the relationship between the cause and the effect has shown mostly consistent results.

• The Journal of the Convergence on Culture Technology
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• v.8 no.3
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• pp.1-8
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• 2022

In Korea, in the process of transition from a rural society to an industrial society, the opportunities for women's economic participation increased relatively. As a result, the marriage age of women increased, and it was recognized that the economic opportunity cost of married women and their participation in economic activities lead to low birthrates. In particular, it is time for an empirical analysis to determine whether workplace types affect the fertility rate. To this end, we analyzed the effect of workplace type on fertility using the labor panel data from 2003 to 2018. The results are as follows. A statistically significant negative relationship was drawn when unemployed women were compared with women employed in the private sector. However, there was no statistically significant effect when comparing unemployed women with women working in the public sector.

• Journal of the Korea institute for structural maintenance and inspection
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• v.11 no.1
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• pp.68-76
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• 2007

In the present study, tests for U-type steel box girder are performed to observe the effects of W-type and X-type of top lateral bracings on the bending behavior of the U-type steel box girder system. Another objective of the present study is to investigate the adequacy of the currently available design formula. For the structural tests, the test specimen with two third scale of the system constructed in the field was used. In this test, several different spacings are used for the top lateral bracings. The stresses measured from the bending tests are compared with those by the formula proposed by Helwig. An adequate type and the required number of panel for diagonal bracing was obtained.

• Journal of the Korean Society of Child Welfare
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• no.56
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• pp.101-132
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• 2016

Fandom is a meaningful social phenomenon that represents a significant dimension of contemporary Korean youth culture. Previous research, however, has considered fandom as a deviant activity that is negative in nature, and there is scant research on the positive effects of fandom activity. This study examined the effects of off-line and on-line fandom activity participation on adolescents' academic time management capability. Data were collected from three waves (2010, 2012, and 2014) of the Korean Children and Youth Panel Survey (middle school cohort; N=2,206 at baseline). Results from the multi-level growth curve analysis were as follows. First, more than half of the adolescents reported participating in fandom activities, and the majority of them participated in both online and offline activities. Second, adolescents' academic time management capability improved over time. Third, both off-line and on-line fandom activity participation was positively associated with adolescents' academic time management capability at the baseline (first year of middle school). The size of this relationship, however, decreased over time (from middle school to high school). This study presented the importance of appropriate guidance by adults to develop and promote the positive aspects of fandom activity, and highlighted the need for further research that focuses on the positive aspects of fandom activities.