• Journal of Intelligence and Information Systems
• /
• v.28 no.3
• /
• pp.1-22
• /
• 2022

We investigate the dynamic relationships among digital piracy activities, TV ratings, and online buzz for Korean TV dramas using a panel vector autoregression model. Our main findings include 1) TV ratings are negatively affected by digital piracy activities but positively affected by google buzz, 2) digital piracy activities are negatively affected by TV ratings and social buzz, and 3) social buzz and google buzz are positively influenced by each other. While many empirical studies were conducted to reveal the effects of music or movie piracy, our understanding of drama piracy is limited. We provide empirical evidence of the dynamic relationships between drama piracy, TV ratings, and online buzz. Our findings show the presence of indirect piracy effects on TV ratings through online buzz. Further, we reveal that social buzz and google trends play different roles in promoting TV ratings and piracy activities. We discuss the implications of our findings for theory and practitioners.

• Journal of the Economic Geographical Society of Korea
• /
• v.26 no.3
• /
• pp.310-323
• /
• 2023

Urbanization and income distribution issues are global interest, and the results of studies on the impact of urbanization on income inequality are different for each country and period. This study analyzes the impact of urbanization on income inequality using regional data from 2000-2021. In particular, serial correlation, spatial dependence, and common factor effects of the Gini coefficient are confirmed and analyzed through a dynamic spatial panel regression model. As a result, urbanization has a positive effect on reducing income inequality. Therefore, it is necessary to continuously promote regional urbanization to improve the income distribution problem. Areas with already high urbanization rates should reduce income inequality by narrowing the wage gap by expanding training opportunities for low-skilled workers, and need to come up with measures to prevent counter-urbanization.

• International Area Studies Review
• /
• v.20 no.2
• /
• pp.63-83
• /
• 2016

This paper examines the determinants of efficiency in a KOSDAQ-listed manufacturing firm. We use Data Envelopment Analysis (DEA) to estimate the efficiency of the export manufacturing firm. We employ two inputs (number of employees, equity) and one output (sales) in the DEA. The determinants of export manufacturing firm efficiency are estimated using the panel Tobit model. An analysis of 369 export manufacturing firms from 2013 to 2015 indicates the following results: First, the R&D intensity, the wage and salary intensity, total asset, and equity ratio each had a negative impact on both the CCR and BCC efficiency scores. However, export intensity had a negative impact on CCR efficiency scores in a KOSDAQ-listed total export manufacturing firm. Second, the R&D intensity had a positive impact on both the CCR and BCC efficiency scores, but export intensity, the wage and salary intensity, and equity ratio each had a negative impact on the CCR and BCC efficiency scores in a KOSDAQ-listed large export manufacturing firm. Third, the R&D intensity, the wage and salary intensity, total asset, and equity ratio each had a negative impact on both the CCR and BCC efficiency scores; respectively, in a KOSDAQ-listed small and medium export manufacturing firm.

• Journal of the Korean Society for Library and Information Science
• /
• v.57 no.1
• /
• pp.233-261
• /
• 2023

Drawing on Bronfenbrenner's ecological system, the study explored the effect of the ecological variables affecting library satisfaction for mothers of early school-age children. The study used the eighth wave(2015) of Panel Study on Korean Children and conducted correlation analysis, multiple regression analysis, hierarchical regression analysis, and stepwise regression analysis. Researchers selected ecological variables for each ecological system based on previous studies. Results showed that mothers had moderate satisfaction with libraries, and their satisfaction with libraries was affected by library accessibility, satisfaction with public services, type of residence, children's reading time, and supportiveness of parenting policy. The study showed that external factors such as family, community, and policies could affect library satisfaction along with internal factors in the sociocultural context. The study suggested a possible practical implication for library policy.

• Journal of Convergence for Information Technology
• /
• v.9 no.12
• /
• pp.62-70
• /
• 2019

The study used cross-lagged path modeling to examine the longitudinal associations between self-esteem and community spirit among adolescents. This is a longitudinal study designed to examine the developmental changes of adolescents' self-esteem and community spirit in Korea. This study used the data collected by the Korean Children and Youth Panel Survey (KCYPS) from 2014 through 2016. Participants were surveyed from the 5^th grade to the 7^th, which belonged to the 1^st elementary school cohort panel of the KCYPS. To be used as the data of this study, children should have all information at 3-time points: the 5^th grade; 6^th grade; 7^th grade. The collected data were analyzed with PSAW 18.0 and AMOS statistical program. The participants in this study were 903 males (51.6%) and 847 females (48.4%). The level of self-esteem was 3.29±.51, 3.19±.55, and 3.15±.57 point at 5^th grade, 6^th grade, and 7^th grade each. The level of community spirit was 3.12±.52, 3.09±.59, 3.15±.55 point respectively. Community spirit from elementary school to middle school is consistently predicted by previous self-esteem. Likewise self-esteem has a significant predictive effect on subsequent community spirit.

• The Korean Journal of Financial Management
• /
• v.13 no.1
• /
• pp.51-78
• /
• 1996

본 연구는 대리이론과 정보비대칭이론 그리고 패킹오더가설등을 기초로 재무정책의 결정요인과 상호의존관계를 규명하는데 그 목적을 두고 있다. 분석자료가 횡단면적 특성과 시계열적 특성을 동시에 갖고 있는 패널자료인 점을 감안하여 일반적인 OLS에 의한 회귀분석 대신에 동시적인 복합오차 모형과 일반화 최소자승법에 의한 회귀분석을 실시하였다. 자본조달정책 분석으로부터 배당비율과 내부자지분율이 재무레버리지에 각각 음(-) 및 양(+)의 영향을 주고 있음을 알 수 있었다.이외에도 경영위험, 수익성, 성장기회는 재무레버리지와 음(-)의 관계이며, 주식분산성과는 재무레버리지와 제한적으로 음(-)의 관계에 있었다. 그리고 기업규모와 경제적 부가가치는 재무레버리지와 양(+)의 영향을 주고 있음도 확인할 수 있었다. 배당정책 분석으로부터 재무레버리지는 대체로 그리고 내부자지분을은 제한적으로만 배당비율에 음(-)의 영향을 주고 있음을 확인하였다. 이외에도 경영위험과 수익성은 일관되게 배당비율과 양(+)의 관계를 갖고 있었다. 기업규모, 경제적 부가가치는 배당비율과 대체로 양(+)의 영향을 미치는 것으로 확인하였다. 성장기회는 제한적으로만 배당비율과 음(-)의 관계를 유지하고 있었다. 소유권구조 분석으로부터 재무레버리지는 내부자지분율에 대체로 양(+)의 영향을 미치는 것으로 확인하였다. 이외에도 기업규모, 경제적 부가가치 및 성장기회는 내부자지분율에 일관되게 음(-)의 관계를 갖고 있었다. 주식분산성과는 내부자지분율에 대체로 양(+)의 영향을 주고 있었다. 재무정책간의 상호의존성을 요약하면 다음과 같다. 내부자지분율과 배당비율은 재무레버리지에 각각 양(+)과 음(-)의 상호영향을 주고 있었으며, 내부자지분율은 배당비율에 제한적으로만 음(-)의 영향을 미치고 있다는 미약한 결과를 얻었다. 그러나 배당비율이 내부자지분율에 영향을 미친다는 증거는 확인할 수 없었다.

• The Journal of Korean Association of Computer Education
• /
• v.16 no.2
• /
• pp.39-48
• /
• 2013

This study investigates the predictive model of the adolescents' computer entertainment behavior using neural network with the KYPS data (3449 in the junior high school; 1725 boys and 1724 girls). This study compares the results of neural network(model 1) to the logistic regression model and neural network(model 2) with the exact same variables used in logistic regression. The results reveal that the prediction of neural network model 1 is the highest among three models and with gender, computer use time, family income, the number of close friends, the number of misdeed friends, individual study time, self-control, private education time, leisure time, self-belief, stress, adaptation to school, and study related worries, the neural network model 1 predicts the computer entertainment behavior more efficiently. These results suggest that the neural network could be used for diagnosing and adjusting the adolescents' computer entertainment behavior.

• Journal of Digital Convergence
• /
• v.16 no.9
• /
• pp.477-487
• /
• 2018

The purpose of this study is to examine the effect of peer attachment on life satisfaction of adolescents and to verify the mediating effects of career identity and smart-phone dependency in the process. For this purpose, the data from the sixth year Korean Child and Youth Panel Survey(2015) on 1,823 middle school students were analyzed by hierarchical regression analysis and path analysis among variables. The results of the analysis are as follows. First, peer attachment of adolescents had a significantly positive effect on their life satisfaction. Second, adolescents' career identity had a partial mediating effect on the relationship between peer attachment and life satisfaction. Third, the effect of peer attachment on life satisfaction of adolescents was partly mediated by their smart-phone dependency. On the basis of above findings, the practical programs to enhance career-identity and life satisfaction and reduce smart-phone dependency were presented.

• The Journal of the Korea Contents Association
• /
• v.15 no.8
• /
• pp.226-235
• /
• 2015

This study aims to explore effects of social exclusion on poverty of people who are 45 years old and over with disability. It also analyzed the difference between the urban and the rural area in relation to the effects of social exclusion on poverty. The researchers conducted a secondary data analysis using the fourth wave of Korean Longitudinal Study of Ageing. The sample included in this study was 640 people who were 45 years old and over with disability. Logistic regression results showed that urban residents who were younger, did not live with a spouse, were not at workforce, and lived in a rented house tended to be on welfare. For rural residents, on the other hand, only age and marital status were significantly related to poverty. Based on the findings, the researchers indicated political implications to diminish social exclusion and poverty of people with disability.

• The Journal of the Korea Contents Association
• /
• v.17 no.1
• /
• pp.522-531
• /
• 2017

The purpose of this study was to explore the relationship between partner violence and depression in the elderly. This secondary analysis study used the data from 2015 Korean Welfare Panel Study. A total of 2,819 older adults who completed the survey about demographic characteristics, health-related characteristics, satisfaction in the relationship with children, satisfaction in social relationship, partner violence, and depression. Data were analyzed with SPSS 23.0 by using descriptive analyses, independent t-tests, $x^2$-tests, bivariate logistic regressions, and hierarchical logistic regressions. In the results of hierarchical logistic regressions, after controlled demographic and health related characteristics, satisfaction in the relationship with children, and satisfaction in social relationship, partner violence was significantly associated with depression in both male and female older people. In conclusion, it is important to make a prevention program to reduce partner violence and depression for not only female but also male older adults.