• Journal of Korean Society of Transportation
• /
• v.34 no.2
• /
• pp.135-145
• /
• 2016

This study assumes a vehicle choice model based on the multinomial model and analyzes the vehicle choice behaviors of consumer. An SP survey targeting drivers was implemented and data was collected for model estimates, with the possible choice options of the survey takers limited to gasoline, HEV, PHEV, and EV vehicles. The explanatory variable mostly displayed a significance level of under 5%, and excluding variables for price and fuel the remaining variables were all consistent with the logical direction with the plus (+) sign and the results were determined to be rational. Consumers selecting mid-size & full-size vehicles are able to afford more than consumers that selected other vehicle types, so there was relatively little consideration given to low fuel costs when compared to vehicle price. For this reason, it was determined that for the full-size vehicle model the fuel variable could be disregarded. Socio-economic variables that were statistically significant were the age and infor variables for the sub-compact & compact, the age, infor and inc3 variables for the mid-sized & full-size vehicles.

• Journal of the Economic Geographical Society of Korea
• /
• v.19 no.1
• /
• pp.68-82
• /
• 2016

Destination choice analysis is an important issue of transportation demand research. The current study analyses the influential factors for university students' trip destination choice. The university students differ from other population groups in many aspects. The study is concerned with shopping, leisure and amusement purposes of trips, other than obligatory trips such as going to school. University students' daily life differs from those of employees and middle and high school students in the sense that a lot of flexible activities are mixed with fixed activities such as work and school attending. A multinomial logit analysis investigates the significance of the impact of a set of variables including residential location, gender and income of the university student. The results show that these variables affect the destination choice of shopping, leisure and amusement. The analysis also provides interesting interpretation of the relationships of the variables with the location choices, which are particularly relevant to the university students.

• Journal of Labour Economics
• /
• v.26 no.1
• /
• pp.23-52
• /
• 2003

This study focus on unemployment and nonparticipation of youth. By dividing youth nonparticipants into 'house work and child care', 'studying and training', 'the others' categories, we estimate the potential wages with selectivity bias model and analyse the factors of choosing unemployment or nonparticipation with multinomial logit model. The differences between the potential market wage and the desired wage of the groups of 'studying and training', 'the others' in the nonparticipants are greater than those of the unemployment group. In the case of the man and lower age, and low schooling the differences of potential and desire wage are larger than woman and higher age, and high schooling. In the choice of unemployment and nonparticipation, man and higher age, and householder, and holder of qualification are not likely to opt nonparticipation. The experience of job lower the rate of probability to choose employment, but raise the rate of probability to choose unemployment and nonparticipation. These results mean that the quality of youth employment is very inferior.

• The Korean Journal of Applied Statistics
• /
• v.10 no.1
• /
• pp.151-161
• /
• 1997

An easy Monte Carlo Gibbs sampling approach is suggested for Bayesian analysis of cumulative logit models for ordinal polytomous data. Because in the cumulative logit model the posterior conditional distributions of parameters are not given in convenient forms for random sample generation, appropriate latent variables are introduced into the model so that in the new model all the conditional distributions are given in very convenient forms for implementation of the Gibbs sampler.

• The Journal of the Korea Contents Association
• /
• v.11 no.8
• /
• pp.459-467
• /
• 2011

BIS(Bus Information Systems) supplies the bus arrived time information for users in using BIT(Bus Information Terminal) installed on the bus stop. BIT is the device using peoples directly. So, BIT need a quick response when it flew. These are an important factor in the strategy of the BIS maintenance. BIT need a maintenance cost to operate smoothly. So, Suppose that commercial advertisement can be displayed on BIT screen in this study. And we researched an advertisement rates of the optimum level in using Contingent Valuation Method. In addition, we analyzed a characteristic of user's depending on each time using multinomial Logit Modeling method, and studied for BIT operation and ad. displaying strategy considered user's sex, ages and using times.

• Journal of Labour Economics
• /
• v.31 no.3
• /
• pp.47-74
• /
• 2008

Following two pioneering works, Medoff and Abraham(QJE 1980; JHR 1981) and Flabbi and Ichino(LE 2001) which use performance rating of personnel data as individual worker's productivity, this study replicates their analysis using a Korean large firm's personnel data(2000, male white collar workers). According to their methods through Mincerian earnings function, and multinomial logit model that links the distribution of wages and performance ratings, we find that seniority wages appeare continuously even if individual worker's productivity is controlled. Therefore we conclude that incentive or deferred compensation theory is more suitable than human capital theory.

• Journal of Labour Economics
• /
• v.41 no.3
• /
• pp.95-128
• /
• 2018

This study tries to measure the change in the state dependence of the three labor supply choices (part-time, full-time, and the state of unemployed) in Korean married women's labor market by estimating the dynamic multinomial logit model based on MSL (maximum simulated likelihood) method. A component representing individual's unobserved characteristics has been introduced, because it is crucial to control for unobserved heterogeneity in assessing the state dependence. Estimation results show that the state dependences of the three alternatives have strengthened recently. Therefore, part-time job has become more likely to be functioning as an extra option to participate in labor market rather than a bridge(stepping stone) or shelter between unemployment and full-time job.

• Korea journal of population studies
• /
• v.30 no.1
• /
• pp.1-24
• /
• 2007

인구고령화의 진전과 함께 노인들의 거주형태에 대한 사회적. 정책적 관심이 증기하고 있으며, 그에 대한 논의와 연구들 또한 많이 늘어나고 있다. 그러나 이들 연구 대부분이 횡단적 자료(단일 시점이든 여러 시점이든)와 분석에 의존함으로써 노인지 거주형태가 생애주기를 따라 변하는 모습을 충분히 보여주지 못하고 있다. 이 연구는 한국노동연구원의 제1차 및 제6차 노동패널자료를 이용해 노년기 거주형태의 유동성을 경험적으로 제시하려는 목적을 가진다. 이들 위해 거주형태의 출현율(prevalence rate)과 전이율(transition rate)을 개념적으로 구분하고 자녀동거여부에 대한 분석을 실시하였다. 두 시점에 대한 횡단폭 분석결과는 노인들의 사회인구학적 특성에 따른 자녀별거경향의 차이를 보여주더라도 생애주기에 따른 역동성을 보여주기에는 한계가 많음이 확인되었다. 두 시점 간의 거주형태 변화에 대한 패널분석에서는 다수 노인들의 거주형태가 주어진 기간 동안 안정적으로 나타났다. 그러나 거주형태의 변화를 경험하는 데에는 연령증가와 배우자 상태변화 등이 중요한 요인임이 확인되었다. 이러한 생애주기적 변화의 효과는 대부분의 계량적 연구에서 유추되는 수준이거나 질적 연구에서만 보고되어 왔던 것이다. 이 연구결과는 노년기 거주형태의 지속성을 보여주는 한편 변화 가능성과 요인을 파악함으로써 노년기 거주형태에 대한 개념적 이해론 공고히 할 것으로 기대된다. 또한 이 연구에서 제시된 방법론적 논의와 접근방식은 생애주기별 변화에 초점을 두고자 하는 다른 연구영역에서도 적용 가능할 것이라 기대된다.

• Journal of the Korean association of regional geographers
• /
• v.13 no.6
• /
• pp.712-723
• /
• 2007

The objective of this paper is to search the factors inducing the visitors to revisit in Bangeo Festival of Jeju region. To get this objective, this study analyzed the data with the Multinomial Logit Model applied dependent variable to intention of revisit. As a result, 'festival program' factor is the most important thing and if the factor increases by 1 unit, the probability of 'revisit' can be increased by 5.255 times than the probability of 'no revisit'. Secondly, the next significant factors are 'festival convenience' and 'festival recognition in advance'. So the providers of the festival will intend to prepare the festival focused on the important factor proposed by this results.

• Journal of Labour Economics
• /
• v.43 no.4
• /
• pp.117-141
• /
• 2020

The paper focuses on the question of whether and how the labor underutilization indicator supplements the unemployment rate. The research is based on the differences in the labor market behavior among three groups of the not-employed; the unemployed, potential labor force and the rest of outside the labor force. The annual transition rate among the labor market states shows that the potential labor force has the explicit unmet need for employment different from the rest of the outside the labor force. The multinomial logit regression controlling the effects of individual characteristics rejects the hypothesis that the potential labor forces are behaviorally identical to the unemployed. The evidence shows that the two indices should be interpreted distinctively.