• Title/Summary/Keyword: 다항로짓

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An Analysis on Joint Choice of Tenure and Dwelling Type in Cheonan (천안시 주민들의 주택보유형태 및 주택점유형태 결합선택 분석)

  • Park, Sung-Hwie;Han, Jong-Ho;Lee, Sung-Ryul
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.4
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    • pp.1637-1645
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    • 2011
  • This study explores the plausible socio-economic variables that influence joint choice of tenure and dwelling type in Cheonan. For estimating these joint choice models, multinomial logit framework is employed. Following the practice of other studies, we chose the age of householder, education level of householder, occupation of householder, residence duration in Cheonan, experience of capital area residence, plan of capital area move and the monthly income of household as socio-economic variables, and size of house, access of subway area, residence area as house characteristics. According to the estimation result, we can derive som implications. For example, the higher monthly income of household, more member of student, bigger size of house, longer residence duration of Cheonan, the more they prefer owing house apartment to renting it. In addition, as householders are older, size of house is bigger, they prefer owing-non apartment to owing house-apartment.

Developing Information Services and Social Integration of Marriage Migrant Women in Korea (정보서비스와 결혼이주여성의 사회통합)

  • Kim, Anna
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.12
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    • pp.1631-1638
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    • 2018
  • Korea has experienced an increase in the number of immigrants in accordance with accelerated globalization. In particular, the rapid surge in international marriages and multicultural families has created social adaptation or inclusion problems for these families in Korean society. This paper examines how information services or technological education programs affect the social integration of marriage migrant women in Korea. Using survey data on international marriage migrant women, we conducted multiple and logistic regression models to examine the relationship between information and technology services and life satisfaction and employment status. The results show that the experience of using social services tends to have positive effects on life satisfaction. Having experiences of information services or technological education improves marriage migrant women's chances of employment and increases their willingness to work or start a business. This indicates the importance of information services or technological educational training and social services in improving social adaptation and integration of marriage migrant women in Korea.

Analysis of Per-Position Characteristics Recognized by Tenure Women Managers (근속 여성관리자가 인식하는 직위별 특성 분석)

  • Jeong, Ji-ae
    • Journal of Practical Engineering Education
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    • v.11 no.1
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    • pp.105-115
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    • 2019
  • This study focused on the importance of job position as a role model for female career adaptation. To do this, we used the KWMP data to conduct a Multinomial logit analysis to examine the influence factors of the tenure women managers. As a result, first, section chief position showed a low level of life satisfaction and showed difficulty of beginner's manager. Second, it is predicted that the position of the Deputy Head of Department will establish the identity of work as an intermediate manager. Third, head of department Director showed a high age, target status, possibility of achieving the target, and duration of the next job. Fourth, executive level has the least average experience of discrimination on monthly average wage. It was suggested that it is important to develop individual career by recognizing that the organizational atmosphere and personnel management are lower than those of the other positions. It was found that age, organizational atmosphere and personnel management, goal status, possibility of achieving goals, next job tenure period, monthly average wage, welfare, and life satisfaction factors were the most influential factors in women career adjustment. Finally, implications and limitations were discussed based on the results of this study.

The Difference of Characters between Housing Poverty Types - Subcriterion Criteria of Substandard Housing, Unaffordable Housing and Double Housing Poverty (유형별 주거빈곤가구의 차이 - 최저주거기준 하위기준미달, 주거비 과부담, 중복주거빈곤가구)

  • Lim, Se hee;Park, Kyung ha
    • 한국사회정책
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    • v.24 no.4
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    • pp.31-62
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    • 2017
  • This study intends to identify the difference of socio-economic characters and housing welfare needs between housing poverty types and to know the independent effects of variables on the housing poverty types. It was revealed that the double housing poverty household, housing below facility standard, unaffordable housing with low income, housing below structure performance environment standard, housing below area standard and housing below room standard should be supported one by one. And the variables related with the housing poverty types are different Suggestions were made for housing welfare policy for the double housing poverty, the control for rental housing market, the policy considering income level for unaffordable housing, the housing policy for the disable household.

Estimating a Mode Choice Model Considering Shared E-scooter Service - Focused on Access Travel and Neighborhood Travel - (공유 전동킥보드를 고려한 수단선택모형 추정 - 접근통행과 생활권통행을 중심으로 -)

  • Kim, Ji yoon;Kim, Su jae;Lee, Gyeong jae;Choo, Sangho
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.20 no.1
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    • pp.22-39
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    • 2021
  • This study estimated mode choice models for access travel and neighborhood travel from an SP survey in metropolitan areas where shared e-scooter services are offered. Model results show that travel time and travel cost have negative effects on mode utility. It is also revealed that people are more sensitive to travel time in access travel, whereas they are more influenced by travel cost in neighborhood travel. Looking at individual and household attributes, it has a positive effect when under 40 yerars of age, owning bikes, being a public transportation user, while it has been shown a negative effect in less than 3 million won in monthly household income and owning individual cars.

A Study on the Consumption Patterns of Poor Households (빈곤계층의 소비패턴에 관한 연구 : 2007년과 2008년의 변화 비교)

  • Joung, Won Oh;Lee, Sun Jeong
    • Korean Journal of Social Welfare Studies
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    • v.42 no.1
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    • pp.305-331
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    • 2011
  • This study analyzes the consumption patterns of the poor households. The first objective of this analysis is to show that the group living in poverty get not one consumption pattern but several types of consumption patterns. The second objective is to understand what factors effect the consumption patterns. This study use the data of Korea Welfare Panel Study in 2008 & 2009. In oder to achieve first goal, We conduct factor analysis and cluster analysis. And to achieve second goal, We conduct multinomial logistic Analysis. Major findings are as follows. First we find six patterns of consuming types of the poor households. They are education oriented consuming type, diet oriented type, social network oriented type, transportation-communication oriented type, health & medical oriented type, and housing expenditure oriented type. Second we find these consumption patterns are effected by not economic factors but socio-populational factors, especially by life cycle of members of household.

The Effect of Technology-Based Entrepreneurship(TBE) Activities on Firms Growth (기술기반창업기업의 기업활동이 기업성장에 미치는 영향)

  • Lee, Myung-Jong;Joo, Youngjn
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.14 no.6
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    • pp.59-76
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    • 2019
  • Most technology-based entrepreneurship(TBE) go through an process of decline or disappear without overcoming the valley of death(VoD). The purpose of this study is to identify the growth dimension of TBE and to test the influence of firms activities on firms growth over time. This study identified the two-dimensional growth dimension divided by size and profit through exploratory factor analysis(EFA) of a number of growth indicators. Then, we defined the discrete state of growth firm in four states, divided by size and profit, and five states, including the closure of business. Multi-nomial logit model is used to predict the effect of TBE activities on a discrete state of growth firm(size×profit, closure of business) based on multiple independent variables. The independent variables are based on five representative firms activities: employment, marketing, R&D, financial activities, and general management activities. The growth stage of TBE over time has been categorized into three stages: early stage, middle stage, and late stage of business, taking into account the main periods during which the survival rate of startups sharply decreases. The analytical data of this study was based on the secondary data of the start-up supporting companies of government and public institutions. The subjects of analysis were TBE within 10 years. As a result of the empirical analysis, the employment and marketing activities of TBE show that early and mid-term activities had an effect on the state of firms growth. However, if there is a difference, employment activities have both positive and negative effects, while marketing activities have only a positive effect on size and profit growth. And besides, R&D activities, financial activities, and general management activities throughout the entire process of firms growth were found to be firms activities that have both positive and negative effects on firms growth. In addition, the age of the founder, the firms' industry, and the geographic location of the firms, which are general characteristics of the company, were found to have a distinctive effect on the growth status of the firms according to the growth stage.

Analysis of Consumer Preferences for Wine (국산 포도주 개발을 위한 소비자 선호분석)

  • Park, Eun-Kyung;Ryu, Jin-Chun;Kim, Tae-Kyun
    • Food Science and Preservation
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    • v.17 no.3
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    • pp.418-424
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    • 2010
  • Although the wine industry continues to grow, little empirical research on consumer preferences has been conducted. Thus, our objective was to analyze consumer views on wine attributes. A choice experiment (CE) was designed to detect a marginal willingness to pay for particular characteristics of wine (balance, flavor, color, clarity, and value-for-money). A questionnaire was administered and 286 responses were received. A multinomial logit model was estimated using the maximum likelihood method. The results indicated that balance, flavor, color, clarity, and price were all important to consumers. The CE data revealed that estimates of marginal willingness to pay were 31,899 won/bottle for balance, 23,088 won/bottle for flavor, 3,230 won/bottle for color, and 25,936 won/bottle for clarity. The balance of a wine was most important, and the flavor, clarity, and color were also significant. The results of this work will be of assistance in promoting the domestic wine industry.

Utility Maximization, The Shapes of the Indifference Curve on the Characteristic Space and its Estimation: A Theoretical Approach (개인여객 효용의 극대화 및 운송특성공간상의 무차별곡선의 형태와 그 추정)

  • Kim, Jong-Seok
    • Journal of Korean Society of Transportation
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    • v.27 no.2
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    • pp.157-168
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    • 2009
  • The random utility theory and the multinomial logit model (including a more recent variant--the mixed multinomial logit) derived from it have constituted a back bone for theoretical and empirical analyses of various travel demand features including mode choice. In their empirical applications, however, it is customary to specify random utilities which are linear in modal attributes such as time and cost, and in socio-economic variables. The linearity helps easy derivation of important information such as value of travel time savings by calculating marginal rate of substitution between time and cost. In this paper the author focuses on the very linearity of the random utilities. Taking into account the fact that the mode chooser is also labour supplier, commodity consumer as well as leisure-seeker, the author sets up a maximization model of the traveller, which encompasses various economic activities of the traveller. The author derive from the model the indifference curve defined on the space of modal attributes, time and cost and investigate under what conditions the random utility of the traveller becomes linear. It turns out that there exist the conditions under which the random utility is really linear in modal attributes, but the property does not hold when the traveller has a corner solution on the space of modal attributes, or when the primary utility function of the traveller is directly affected by labour provided and/or the travel time itself. As a corollary of the analysis, a random utility is suggested, approximated up to the second order of the variables involved for empirical studies of the field.

선택 실험법을 이용한 친환경 보일러의 시장 점유율 예측

  • Kim, Mi-Jeong;Bae, Jeong-Hwan
    • Environmental and Resource Economics Review
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    • v.21 no.3
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    • pp.595-625
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    • 2012
  • Recently environment-friendly pellet boilers have interests as emissions of greenhouse gases are regulated internationally and energy security becomes more important to oil addicted countries including Republic of Korea. But the Korean market for pellet boilers is on the initial stage due to the high production costs relative to other conventional boilers. Hence the Korean government has supported financially and promoted the pellet boiler business. In this sense, it would contribute market stratergy and effective promotion policy for both of the government and private companies if we can forecast market shares of pellet boilers appropriately. For this purpose, this study surveyed potential consumers' preferences on pellet boilers among various alternatives using a choice experiment reflecting intangible costs. As the market share of new technology increases, intangible costs decline. According to different intangible cost scenarios, we experimented people's preferences on oil, gas, electric, and pellet boilers. A multinomial logit model was employed to estimate coefficient parameters of common attributes for various alternative boilers. Based on the estimates, we forecasted market shares of individual boilers. We found that as intangible costs decline, the market share of pellet boiler increase substantically while market shares of electric and gas boilers decrease dramatically. The market share of oil boiler did not change significantly. Meanwhile, as people are more rich, more educated, and exposed to advertisement on pellet boilers, the likelihood of choosing the pellet boiler increases.

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