• Korea journal of population studies
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• v.26 no.1
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• pp.31-57
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• 2003

This study is intended to examine (l)whether the value of son-for example, old age security and succession of family lineage- causing son preference in the traditional society can be explained at the individual level, (2)whether women without son in the son preference country continue her childbearing until having at least one son or give up the desire of having a son at a certain level. To accomplish these purposes, the 1974 Korean National Fertility Survey data are analyzed by the quadratic hazard models controlling unobserved heterogeneity. Unlike ordinary regression model, even omitted variables that affect hazard rates and are uncorrelated with the included independent variables can distort the parameter estimates in the hazard model. Therefore the nonparametric maximum likelihood estimator(NPMLE) of a mixing distribution developed by Heckman and Singer is used to control unobserved heterogeneity. Based on the statistical result in this study, the value of son causing son preference is determined at the societal level, not at the individual level. And Korean women without a son did not continue endlessly childbearing during child bearing ages until having a son. In general, they gave up the desire having a son when she had born six daughters continuously. Thus, 30-40 years ago, the number of daughters that women without a son giving up the desire of son was six, which is about the level of total fertility rate during 1960s. In these days, we can often see many women who have only two or three daughters and do not any son. This means that the level of giving up the desire of son, which is one factor representing the strength of son preference, becomes lower. If the strength of son preference did not become much weaker, then the fertility rates in Korea could not reach the below replacement level.

• JOURNAL OF ELECTRICAL WORLD
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• no.10 s.34
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• pp.23-28
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• 1979

만약 가솔린가격이 전력요금보다 급격히 상승할 경우 전기자동차가 비용 효과비율면에서 및 가격면에서 보다 유리해지며, 전기자동차의 에너지절약효과, 오염감소효과 등 사회적효과를 고려하면 전기자동차가 선호될 것이며 또한 선호되어야 한다는 실증적, 당위적 결론에 도달하고 있다.

• Proceedings of the Korea Contents Association Conference
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• 2005.11a
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• pp.149-152
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• 2005

콘텐츠 융합을 통한 오락과 커뮤니케이션의 대표적인 매체이자 사회적 구성물로 발전해 온 게임산업은 다양한 주제와 다양한 시각의 접근으로 폭넓은 연령층과 여성유저의 참여 확대 현황을 보이고, 이러한 현황은 캐주얼게임과 여성선호게임의 성장을 가져왔다. 이에 따라 유저들의 요구사항은 더욱 다양해지고 있고 이러한 게임개발을 위해 시각적 표현은 더욱 중요한 자리를 차지하게 된다. 캐주얼게임과 여성선호게임들의 성공요인들을 통해 그 중에서 시각적인 표현요소들의 중요성과 영향력, 그리고 앞으로의 개발방향에 대하여 제시한다.

• Journal of the Korea Convergence Society
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• v.9 no.11
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• pp.529-538
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• 2018

The purposes of this study were to examine the stress, quality of sleep, Social support according to Myes-Briggs Type Indicator(MBTI) personality type in nursing students. Structured questionnaires were used for survey with a convenience sample of 290 nursing students. Data were analyzed using descriptive statistics, t-test, Pearson's correlation coefficient, and multiple regression with SPSS/WIN 18.0. Extroversion preference(${\beta}=.23$, p=.047) in quality of sleep, thinking prefernce((${\beta}=.06$, p=.025) in tangible support, judgement preference(${\beta}=.24$, p=.014) in appraisal support and perception preference(${\beta}=-.21$, p=.011) in Self-esteem maintenance were significantly associated factors with stress. Therefore, intervention programs for managements of stress should include systematic and indivisual intervention through the convergence of departments, university and specialists in nursing students.

• Journal of Korean Library and Information Science Society
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• v.43 no.1
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• pp.261-285
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• 2012

The purpose of this study is to confirm that the user benefit criteria can be applied as the user benefit criteria of children's libraries by examining the theoretical validity of the user benefit criteria and furthermore, by clarifying and verifying the mutual relation between the user benefit criteria and the child development area. For such a purpose, this study collected data from 247 users of children's libraries in the country and collected data was analyzed using the structural equation modeling. The result of analysis is as follows. First, the relation between physical development and behavioral facilitation, emotional development and physiological maintenance, cognitive development and perceptual maintenance, and the development of social skills and social facilitation was appropriate. Second, usability, safety and diversity was valid as an index of behavioral facilitation, self-esteem, amenity and peacefulness was valid as an index of physiological maintenance, esthetic sense, dynamics and flexibility was valid as an index of perceptual maintenance, and leisure, communication and territoriality was valid as an index of social facilitation. Third, children who prefer physical development prefer the benefit of behavioral facilitation, children who prefer emotional development prefer the benefit of physiological maintenance, children who prefer cognitive development prefer the benefit of perceptual maintenance and children who prefer the development of social skills prefer the benefit of social facilitation.

• Environmental and Resource Economics Review
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• v.27 no.4
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• pp.695-723
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• 2018

Recently, extreme weather due to climate change has become more frequent, and increase of fine dust has worsen air quality in Korea. Therefore, not only negative perception on coal-fired power generation is dominant, but also the social acceptance of nuclear power generation declines. This study aims at deriving consumer preferences on the mid and long term power mix with various energy sources. Willingness to pay for each generation source was estimated and the preference heterogeneity of consumers was examined by using mixed logit and latent class models. Mixed logit estimation results show that the preference heterogeneity of consumers is especially large for the nuclear power relative to renewable or coal energy. According to the estimation results from the latent class model, group 1 prefers renewable energy while group 2 prefers coal energy. Group 3 shows lexicographic preference which means restricted rationality. As for the policy implication, it is necessary to understand the preference heterogeneity of consumer groups in planning the mid to long term power mix.

• Korean Journal of Culture and Social Issue
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• v.26 no.3
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• pp.221-257
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• 2020

This study examined whether popular music lyrics, the new research topic, reflect changes in Koreans' cultural orientation and whether individuals' cultural orientation is related to the genre of popular music that they prefer. In Study 1, we content analyzed popular music lyrics from 1980 to 2018 to see if Koreans' cultural orientations changed over time. The analysis showed that as the release dates approached the 2010s, the lyrics expressed the ideal attitudes of individualist cultures more frequently than those of collectivist cultures; this suggests that Koreans have gradually become more individualistic over time. In Study 2, we examined the relationships between individuals' cultural orientations, preferences for various genres of popular music, and functions of music. The analysis showed that people with more collectivistic attitudes tended to prefer mid- and low-arousal music, such as Ballads and Rap/Hiphop, while those with less collectivistic attitudes preferred high-arousal music, such as Rock/Metal. This result is partly consistent with the hypothesis that collectivistic people would prefer lower to higher arousal music. In addition, our analysis showed the strongest positive relationship between collectivism and the social function of music; this result can be interpreted as indicating that collectivistic people use music to maintain good interpersonal relationships. This paper concludes by discussing the implications of these findings, the limitations of this study, and directions for further research.

• Korean Journal of Culture and Social Issue
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• v.18 no.2
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• pp.191-213
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• 2012

The purpose of this study was to examine the differences of the explicit and implicit attitudes towards the elderly according to age and gender. For this research, 64 college students and 64 older people completed Explicit Attitudes Rating Scales (likability/ trustfulness/ companionship/ group membership), Explicit Preference Test, and Young-Old Implicit Association Test. The college students presented in-group preference and out-group bias on both explicit and implicit level whereas our-group favoritism was presented in the older participants on both explicit and implicit level, which meant the older participants preferred the young to the old. In both the groups, however, there were no significant correlations between explicit and implicit age attitude. In addition, college students showed an explicit preference for the old over the older participants whereas only interaction effect(age and gender) was appeared on implicit preference toward older people. The theoretical and practical implications and limitations of this study were discussed.

• Journal of Korean Society of Transportation
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• v.28 no.2
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• pp.65-75
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• 2010

When the cost-benefit analysis is applied for social discount rate(SDR), the choice of SDR to be used in analysis is critical. One of the important issues when public investment project evaluate what is the SDR theory, so there have studied about SDR and no exact answer it so far. In this study, there are three of SDR theories that be estimated social time preference rate, social investment returns and the weighted average method from 1990s, 2000 to 2003 and 2004 to 2008.. First, social time preference method computes consumer's interest rate and the model of Pearce and Ulph(1999). Second, social investment returns method computes private returns of capital. Third, the weighted average method computes the model of Squire, L., Herman G. van der Tak(1975) and private consumption expense and the private investment expense. SDR is estimated in the rage between 2.4% and 3.9% from 2004 to 2008. It is not appropriate that the interest rate was unstable. But it is consider for social equity from present to future generations. Considering this things, downward need to the value of current SDR 5.5%.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.449-457
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• 2013

This study seeks to find the sociocultural value which influences the man image and make-up in media. It helps to gain the effective data that suggest the application of male make-up in promoting development of market. The man emphasizes the practical value which is the technical and instrumental value to express the man image rationally, aesthetic value to pursue aesthetic purely and symbolic value which is a volitional and intentional value experienced in the history and society to express preferring man images as the society is changed. As analysing the man image based on sociocultural value, the practical value of men's make-up is to maximize the utility vale in order to deliver a clear image considering their activity range, environment, and situation. Second, the aesthetical value of men's make-up is to emphasize femininity through women's make-up technic. Third, the symbolic value of men's make-up is to deliver a concept or intentionally create an image by maximizing overall characteristic image. It will be hopefully valuable as a basic data for developing make-up products and setting trend for men as well as for future studies.