• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.11
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• pp.2238-2249
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• 2015

The purpose of this study is to analyze the relations of innovation and productivity following the introduction of ICT and the effects in the process of innovative investments activity-innovation-productivity, not only by finding causes and effects. For this purpose we conducted surveys of SMEs classified into 7 categories by type of business. To put it concretely, this study was performed to find out the foactors which allow companies to secure competitiveness by enhancing of innovative measures through ICT, and to further analyze the political implications for the development of small and medium-size business by conducting an empirical analysis of the process, from the determination of innovative investments all the way through to production. Analysis model used CDM model using econometric methods such as multiple regression analysis and multinominal logit analysis to produce results. Also we established and analyzed models of innovation investment determinants, innovation determinants and productivity determinants to analyze specifically the relations between ICT and productivity.

• Journal of the Korean Regional Science Association
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• v.32 no.1
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• pp.83-103
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• 2016

This study aims to analyze the determinants of residential location choice for the inter-urban migrants in the Seoul metropolitan area. In doing so, we have built a discrete choice model, using household sample data from the 2010 Korea Population and Housing Census. We classified households, which made a intra-urban movement during the last five years, into four groups: 1) movers from Seoul (central city) to Gyunggi-Incheon (suburban), 2) movers from Gyunggi-Incheon to Seoul, 3) Intra-Seoul movers, and 4) intra-Gyunggi-Incheon movers. The analysis findings can be summarized as follows. First, significant differences in the determinants of residential location choice were found among different types of movers. Second, movers from Gyunggi- Incheon to Seoul were likely to choose small housings with fewer rooms, indicating that their housing choices were forced rather than voluntary due to high housing prices in Seoul. Third, all types of movers have a high preference for the neighborhood with a good accessibility by public transit including subway. Lastly, neighborhood amenity was also an important attracting factors for the intra-urban migrants in Seoul.

• Journal of Digital Convergence
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• v.19 no.7
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• pp.87-94
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• 2021

The purpose of this study is to categorize tourists according to the types of Korean popular culture as travel motives and to explore their characteristics and behavior in the tourism-related decision-making process. A sample of 12,914 leisure tourists from the 2018 foreign tourist survey data was analyzed using MNL and ANOVA. The popular cultural tourists were categorized into K-food, K-fashion, and K-pop groups. They showed a higher percentage of female tourists, social media usage in the tourism information search, and visits from countries geographically close to Korea. K-pop tourists did not hesitate to choose Korea as the destination and visited Korea the most frequently. They showed the highest satisfaction, revisit intention and recommendation intention, suggesting loyalty and growth potential.

• Journal of Labour Economics
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• v.44 no.1
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• pp.31-72
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• 2021

This study uses the 12-21st waves of KLIPS to estimate the effect of the increase in the minimum wage on the individual's labor market transition through a multinomial logit. In particular, we examine whether there was an additional effect of the rapid increase in the minimum wage in 2018. The main results of this study are as follows. First, the increase in the minimum wage in Korea is found to have increased the probability of becoming unemployed for both wage workers and self-employed, but there is no additional impact found from the 2018 minimum wage increase. Second, the increase in the minimum wage is found to increase the likelihood of the self-employed entering into wage workers, especially temporary and daily workers. Third, we have found that the increase in the minimum wage in 2018 adversely affected self-employed people with high school education, and significantly lowered young wage workers entering into self-employed. Our results suggest that the recent increase in the minimum wage may be responsible for declining self-employment rate in Korea, and may have a negative effect on the quality of employment because the increase in minimum wage can lead to an increase in temporary and daily wage workers.

• Environmental and Resource Economics Review
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• v.32 no.3
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• pp.167-190
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• 2023

This study analyzes the potential demand for automobiles based on fuel type using survey data in Korea. The dependent variable of the model is the future desired fuel type, including gasoline, diesel, hybrid, electricity, and hydrogen. The main explanatory variables are the respondent demographic characteristics, key reasons for choosing vehicle fuel type and environmental awareness extracted via principal component analysis (PCA). Using a multinomial logit (MNL) model, we find that respondents who consider fuel economy and infrastructure increase the demand for a hybrid car but decrease the demand for electric and hydrogen vehicles. The denial-types increase the demand for gasoline (petrol) and diesel (light oil), and decrease the demand for electric vehicles. The anxiety-types increase the demand of hybrid vehicles, and decrease the demand for electric vehicles. In contrast, in the case of pro-types, the demand for diesel (light oil) hydrogen vehicles decreased.

• Journal of Korean Society of Transportation
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• v.35 no.6
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• pp.481-498
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• 2017

Travel time reduction benefit is the most important benefit item in the feasibility study of transportation infrastructure investment projects and calculated by using the value of travel time. The current feasibility study guideline (5th edition) calculate the value of non-business ravel time in a metropolitan area, using the ratio of the value of non-business travel time to business travel time calculated based on the nationwide inter-regional traffic survey data of 1999. The characteristics of metropolitan trips are different from those of nationwide regional trips. Metropolitan trips have frequent transfers between multiple public transits and long-time commuter trips. Therefore, this research aims to calculate the value of travel time reflecting traffic characteristics in a metropolitan area by improving the limitation of current calculation methods. To reflect these characteristics, this research extracts commuter trips from non-business trips and calculates the value of travel time for commuter trips. The results of the likelihood ratio test for the commuter trip model and the non-business trip model are found to be statistically significant. An integrated public transportation model was also estimated in this study to reflect the trip conditions of the Seoul metropolitan area integrated fare system. The results of comparing coefficients between bus and subway in the integrated public transit model indicated that there were no statistically significant differences between the two modes.

• Survey Research
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• v.9 no.3
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• pp.55-69
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• 2008

In most telephone surveys in Korea, telephone numbers are selected from the directories. Inevitably, such samples may lack representativeness due to poor coverage rate. To resolve the problem, Kang et al.(2008) implemented RDD(random digit dialing) method for nationwide sampling in Korea. The aim of this study is to compare an RDD sample with a traditional telephone quota sample that were collected independently by two survey institutes commissioned by the KBS-MBC consortium for the 2007 Presidential Election of Korea.

• Korean Journal of Human Ecology
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• v.22 no.2
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• pp.267-282
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• 2013

This study analyzed the effect of consumer value and unethicality on the type of consumer complaint behaviors. Despite the obvious importance of the research on consumer complaint behaviors focused on consumer's inherent personality, there is relatively little work done. The purpose of this study is to analyze the determinants of consumer complaint behaviors in order to improve consumers' well-being and develop the market condition. The 1,050 respondents are finally analyzed using the descriptive statistics, factor analysis, and multinominal logit model. Consumer value and unethicality are significant effect on the type of consumer complaint behaviors such as no action, private action only, public action only, and both private and action. The orientation of achievement and pleasure among consumers' value is associated with the higher level of complaint behaviors compared with no action. In terms of consumers' unethicality, no harm unethicality is associated with the types of each consumer complaint behavior except no action. On the other hand, both proactive and passive unethicality increase the possibility of no action. The policy implications of the consumer education are suggested as well as the directions of customer management strategies in the business sector.

• Journal of Labour Economics
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• v.26 no.3
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• pp.209-230
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• 2003

This study investigates the factors affecting job seekers' utilization of social networks in Korean job markets by using the East Asia Social Survey on People's Work Life: South Korea data collected in 1996. If employees are analyzed as a whole, social networks have been used more frequently than formal means and direct application. Results of the multinomial logistic regression largely show that job seekers who occupy better positions in job markets have used social networks less frequently. This is due to the characteristics of Korean job markets: (1) Korean job markets are clearly divided by several criteria, and (2) in the sectors of job markets which provide better socioeconomic rewards, the competition through formal means is the main path of getting jobs.

• Journal of Labour Economics
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• v.24 no.2
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• pp.35-62
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• 2001

Using panel data (KLIPS) we examine the relation between respondents' occupation and their fathers' occupation. We divide the urban employed into four subgroups according to their occupation: employer, self-employed, white collar worker and blue collar worker. We find that the effects of fathers' occupation on respondents' occupation are mediated by the level of respondents' education. The effects of respondents' initial occupation on their current occupation are also significant. In terms of the extent of mobility, we can rank the occupational groups as follows: employer, upper layer of self-employed, white collar worker, lower layer of self-employed and blue collar. In order to encourage occupational mobility, we should level the opportunity of education among different occupational groups.