• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.129-139
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• 2014

The purpose of this study is to examine the features of children poverty in Korea. Using the 7th Korean Welfare Panel Study, this study conducts latent class analysis to classify households with children. Results show that households with children are classified into three types: 1) housing expenditure overburdened households, 2) multidimensional deprivation households, 3) non-poverty households. The housing expenditure overburdened households have higher rates of housing expenditures than the other two groups. The multidimensional deprivation households experience various types of deprivation such as food insecurity, poor housing, and unstable job security for householders. The results imply that comprehensive approaches are needed to address multiple problems which poor households with children suffer.

• Journal of Korean Society of Transportation
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• v.25 no.3
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• pp.111-121
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• 2007

A transit assignment model can forecast the behaviors of transit users. thereby playing an important role In the evaluation of transit policies. Most existing transit assignment models are based on the models for passenger cars; therefore they cannot reflect the specific characteristics of transit modes. In addition most of the existing models are based on a single transit mode (bus or rail), and they cannot forecast the behaviors of transit users in a changing mass transportation system. The goal of this study is to overcome these problems with the exiting models and to develop a more realistic model. The newly developed model is based on mixed transit modes and is a stochastic model that can reflect the different preferences of each transit user for travel time and transfering. Data gathered from the Seoul metropolitan area's smart card are used to calibrate this model. This study is expected to be used for the evaluation of transportation policies and to attribute the development of transit revitalization strategies.

• Korean Journal of Social Welfare
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• v.66 no.3
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• pp.277-295
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• 2014

This study was purposed to examine the effect of the parental care burden on the labor force participation of the middle aged and older women. For this, this study used 2,125 samples aged from 50 to 70 years old that were extracted from 1st and 2nd wave of the Korean Retirement and Income Study(KReIS). In order to examine the causal relationship between two variables, Generalized Estimating Equation(GEE) and Multi-nominal Regression analysis were performed. The results showed that there was a positive effect of the parental care burden on the labor force participation of the middle aged and older women. However, this effect was limited only to the employment to the unpaid family workers. In addition, the effect was varied according to the level of caring time to the old parents. Based on that, several policy and practical implications were suggested.

• KDI Journal of Economic Policy
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• v.29 no.1
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• pp.41-78
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• 2007

Due to the concern of regional unbalance relating to healthcare resources, the government has set up a plan to expand public healthcare services and a policy to manage the supply of hospital beds. However, it is not clear what standards are needed to measure the degree of unbalance, and to what extent the gap needs to be narrowed. Unlike the previous methodology comparing the proportions of patients who move out from their administrative district to receive medical services, this study examines the inconvenience gap patients experience when they have to move out from their actual living area. The logit and multinomial logit models are employed. The regional unbalance decreases when the degree of movement is measured based on the living area. This result implies that essential standard for achieving regional balance relating to medical services need to be based not on the even distribution of medical resources, but the complications of regional people that require proper medical services.

• Journal of Global Scholars of Marketing Science
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• v.15 no.3
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• pp.149-168
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• 2005

The purpose of this paper is to study the impact of brand personality on the choice of tour site. For this purpose, Japanese, Chinese and Korean tourists visiting Jeju-Ireland were sampled and asked to evaluate the personality dimensions and attributes of six major tour sites in Asia. Factor analysis is applied to 42 personality scales of Aaker and 5 personality dimensions are extracted. Then, Multinomial Logit model is applied to estimate the relative impact of personality dimensions and attributes on the choice of tour sites. Results suggest useful implications. The personality of tour sites has meaningful influence on choice of tour sites, in some cases more important than tour site attributes. Among 5 dimensions of personality, sincerity and excitement are found to be important dimensions in the choice process of tour site. Sophistication of the site, expressed as glamorous, charming, handsomeness, uniqueness, and smooth, is also found to be important in determining intention to visit in the future.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.10
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• pp.7118-7125
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• 2015

This study examined one of the concerned or even imperative issues in the field of contemporary finance related to approaching an optimal level of cash holdings for the firms belonging to the chaebols in the Korean domestic capital markets. However, the subject may not have been drawn much attention so far, even if there are still ongoing and active debates among the interest parties at the macro- or micro-level. Two primary hypotheses were postulated to be empirically tested. On the results of the first hypothesis test for the existence of an optimal cash reserves for the sample firms, two estimation techniques were performed in terms of a quadratic regression equation and a relationship between a firm's value and the residuals derived from the static panel date model. As a primary financial implication of the study which may contribute to the practitioners and the academics in finance, the optimal level of cash holdings can be estimated by controlling for the a priori significant components for the sample firms towards maximizing firm value.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.10
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• pp.4328-4336
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• 2011

The aim of this study is to find changes of the attributes that influence the purchase of cut roses during recent five years(2007~2011) and suggest some implications on ways to promote cut roses marketing. For this purpose, a survey was conducted through the Internet among 1,100 randomly chosen people living in Seoul, Inchon and Gyeonggi Province in 2011. A total of 1,023 valid replies were received for the analysis of the survey which was carried out by the subsidiary consulting firm. The survey panels and estimation models to analyze changes of consumers' preference attributes during recent five years are same to them of Kim, et al.(2007). That is, empirical analysis tools such as ordered probit model, multinomial logit model, and conjoint analysis were used according to Kim, et al.(2007). This paper suggests several policy implications to set up the target market of cut roses and marketing mix strategy to specify the best 4P(product, price, place and promotion).

• The Journal of the Korea Contents Association
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• v.12 no.9
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• pp.348-356
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• 2012

This study is identifying early takeoff phenomenon in relational network like SNS and investigates influence of innovator or hub at early takeoff and diffusion size at takeoff point. The major finding of this study are as follows. First, multinominal-logit analysis conducted to explore the impact of innovator and hub at early stage of information diffusion and early takeoff. Hub in early stage of information diffusion impact early takeoff. Second, our study shows that innovator and hub at early stage of information diffusion impact diffusion size at takeoff point. Third, hub is more impact early takeoff and diffusion size at takeoff point then innovator. This study provides implication for professionals by confirming hub's influence in study of successful information diffusion by early takeoff. The limitation and future direction are discussed.

• Proceedings of the Korea Water Resources Association Conference
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• 2010.05a
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• pp.1471-1475
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• 2010

본 연구에서는 미래 기후변화 시나리오를 이용하여 우리나라의 미래 산림식생 분포 변화를 예측하고 이를 SWAT 모형에 적용하여 영산강호유역의 증발산량 변화를 분석하고자 하였다. 현 기상관측자료(1971~2000)를 이용하여 현재의 기후를 판정하고, 기상청에서 제공한 GCM(MIROC3.2)의 통계학적 다운스케일링으로 구성된 RCM 자료를 이용하였다. 산림식생의 분포는 임상도에 의한 현존 식생군락과 환경인자(강수량, 기온, 지형인자, 토양유기물 함량 등)간의 상관분석을 실시하여 상관관계가 높은 주요 환경변수들을 결정하고, 이들을 종속변수로 하는 다항로짓모형을 구성하여 추정하였다. 이 모형을 이용하여 미래의 주요 환경변수들을 입력, 미래 2020s, 2050s, 2080s의 우리나라 산림식생 분포를 예측하였다. 예측된 산림식생 분포를 적용하여 미래 증발산량을 분석하기 위해 남쪽의 따뜻한 지역으로서 활엽수림이 있는 영산호유역($3,455.0km^2$)을 선택하였다. 1998~2002 5년간의 유출량 자료를 이용 모형을 보정하였다. 모형의 검증은 보정 매개변수의 평균값들을 통해 2003~2008년 유출량을 모의 하였다. 예측된 미래식생분포를 이용하여 토지이용도를 재구축하였으며 재구축 결과 활엽수는 $715.2km^2$ 늘어나며 혼효림은 현재에 비해 2080s에 $167.1km^2$ 침엽수는 $548.1km^2$ 줄어드는 경향을 보였다. 영산호유역에서는 미래의 증발산량이 증가하며, 식생분포를 고려하였을 경우 2080s년에는 고려하지 않은 경우에 비해 약 4.52mm 감소하는 것으로 분석되었다.

• Journal of the Korean Home Economics Association
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• v.48 no.4
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• pp.83-102
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• 2010

This paper investigates whether intra-household bargaining power affects couples' caregiving decisions during instances of competing parental demands for assistance. The primary focus is on examining how partners' bargaining power influences the relative allocation of time resources between parents and parents-in-law, assuming that children prefer to transfer caregiving resources toward their own parents over their parents-in-law. The findings in this study reject the bargaining theory that couple's parental care behavior results from a bargaining process between the husband and the wife. More specifically, the results did not clearly show that children prefer to transfer caregiving resources toward their own parents over their parents-in-law. Decision-making power, measured by final decision-making authority, also failed to affect the relative care transfers.