• Korean Journal of Social Welfare
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• v.62 no.3
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• pp.31-58
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• 2010

Using Seoul Welfare Panel Study, this research examines regional differentials in income and asset between Gangnam households and Non-Gangnam households in Seoul. Applying the Oaxaca decomposition method, it also decomposes factors associated with the differentials into explained and unexplained components. Results show that average monthly income is about 4 million won for Gangnam households and 3.2 million won for Non-Gangnam households. The explained component accounts for most of the income differential, which mainly originates from differences in the distributions of individual and household characteristics associated with the monthly income. The net asset differential between the two regions is much greater than the income differential. The net asset is about 460 million won for Gangnam households and approximately 280 million won for Non-Gangnam households. Most of the net asset differential is remained unexplained after controlling for covariates which measure demographic characteristics of householders and various features of labor market in which household members are employeed. It implies that other factors such as inter-generational transfers of wealth may play a significant role in creating the net asset differential.

• Korea journal of population studies
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• v.26 no.1
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• pp.59-77
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• 2003

This study conducts empirical research on gender differentials of economic resources in old age. The economic resources are assessed by the presence of independent income source and the amount of total income. The study, based on nation-wide survey of the elderly, examines the effects of individual level variables and household level ones. Also, it compares such effects between male and female elderly. The analysis shows that several variables have gender specific effects. Among them, particularly interesting and important are marital status and coresidence with children. The positive effect of having spouse is greater among female elderly than among male elderly. Also, while coresidence with children among male elderly has insignificant or slightly positive relation to their own economic resources, it has a negative relation among female elderly. These results indicate that female elderly are dependent on their husbands and children. The study suggests that future research on the elderly incorporate gender differentials into models attempting to capture diversity within the elderly population.

• Journal of Labour Economics
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• v.24 no.1
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• pp.67-96
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• 2001

The recent economic crisis started at the end of 1997 has brought about changes in labor market practices. One of them is rapid increase in the ratio of workers with alternative employment arrangement, so-called contingent workers. This type of arrangement, unlike traditional employment arrangement, makes employers properly adjust employment to business cycles and it also makes it possible for employees to solve time and spatial constraints related to labor supply. However, recent experience has revealed its negative characteristics such as lower wage rate, deficient fringe benefits, insufficient job security. Using the data from the first and the second wave of the Korea Labor and Income Panel Survey, this study focuses on change in the tendency of being contingent workers and decomposition of the wage differentials among regular and contingent workers by estimating the switching regression model. Results show that the recent crisis significantly contributed to probabilities of being contingent workers, especially for women, the young, the older, and the lowly educated. Decomposition shows that one quarter or one third of 35% of wage differentials are due to the price effect that the same productive characteristics are differently paid by the types of employment arrangements.

• Proceedings of the Population Association of Korea Conference
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• 2006.12a
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• pp.131-152
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• 2006

This study examines the causal mechanisms of low fertility and regional differentials in Korea. Utilizing the 2005 census and the 2005 vital statistics, and labor statistics at the regional level, major variables were calculated for administrative units of 234 'Gu's, 'Si's and 'Gun's. Gender equity orientation, labor market insecurity and family formation were hypothesized as key factors of recent decline in Korean fertility. This study first presents four maps of gender equity orientation, labor market insecurity, family formation and fertility. Then ANOVA and path analysis were carried out in an effort to generalize the causal mechanisms. Results of analysis reveal that gender equity orientation has played a central role in the second fertility transition in Korea. In metropolitan regions, however, labor market insecurity is found to have a significant influence on the level of family formation and fertility. Family formation also turns out to be an important intermediate variable of fertility.

• International Area Studies Review
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• v.13 no.1
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• pp.3-16
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• 2009

This paper investigates the existence of uncovered interest rate parity between the Korea-USA as well as the Korea-Japan. We may ascertain the existence of uncovered interest rate parity by examining the empirical relationship between real exchange rates and interest rate differentials in the Korea-USA as well as in the Korea-Japan. The empirical relationship between real exchange rates and interest rate differentials in the Korean-USA and Korean-Japanese economies is investigated using cointegration tests. In the context of this study, cointegration technique is appropriate to examine the relationship between two(or more) nonstationary time series. Also, this method is useful to detect the possibility that the nonstationarity in both series can be explained by a single factor. The empirical results support the nonexistence of a long run equilibrium relation between real exchange rates and interest rate differentials. Also, the results show that the nonstationarity cannot be explained by a single factor.

• Korea journal of population studies
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• v.29 no.2
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• pp.143-166
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• 2006

It has been well known that women live longer but suffer more from degenerative diseases than men do, which, in turn, results in frequent utilization of medical care services among women. Previous studies, mostly based on Western society, have discussed that women, particularly married women, are more likely to utilize medical care services than men even after considerations of different health status and demographic and socioeconomic characteristics. Social interests in women's health and socialization process of caring for health among women are known as causes. This study examines sex differentials in the medical care service utilization in Korean society, particularly focusing on marital status. Feministic perspectives in Korea have argued that sex division of labor within family puts women in a position that has to continuously provide physical and emotional services to other family members, which keeps them from taking care of their own health. This study empirically tests if this feministic perspective holds true in Korea. Results show that Korean women and those with spouse are more likely to utilize medical care services than their men and the spouse-less counterparts, net of other risk factors. However the effect of existence of spouse on the medical care utilization is much smaller among women than men. These results suggest that the feministic perspective is in part applicable to explain sex differentials on medical care service utilization in Korea.

• Journal of Labour Economics
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• v.40 no.1
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• pp.1-36
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• 2017

This study aimed to analyze influencing factors to increase the wage differential between large enterprise and subcontracted small-medium enterprises by using panel data composed of 19 manufacturing industries for 16 years from 1999 to 2014. According to the results of analysis, in large enterprises the elasticity of substitution between the labor inputs and the subcontracted product supplies from small-medium enterprises was significantly less than 1. So, the increase in wages of workers of large enterprises, whose degree of employment protection was relatively high, seemed to increase the share of wage cost in total cost and was resulted to decrease the cost share of subcontracted product supplies significantly. This was interpreted to be able to exert a negative influence upon the price of subcontracted product supplies and the wages of workers in subcontracted small-medium enterprises, and, therefore, to increase the wage differentials between large enterprises and subcontracted small-medium enterprises. Furthermore, it was also found that the increases in the labor union participation rate at large enterprises and the openness rate of the industry concerned were contributing to make such effects much stronger significantly. In order to mitigate the wage differentials and the polarizing trend in labor market, we can suggest to establish a certain kind of flexible wage system and to introduce co-bargaining practices with the workers of subcontracted small-medium enterprises within large enterprises, and also for the workers of small-medium enterprises, to prepare new social systems to upgrade their human resources and job skills drastically.

• Journal of Labour Economics
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• v.26 no.2
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• pp.97-127
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• 2003

The purpose of this paper is to analyze the expected earnings differentials by major of university graduates. Usually the achievement in labor market has been measured by the earnings of those being with job. But such simple comparisons of earnings might fail to bring out correct evaluation once if the probabilities of getting a job are quite different across the major of university graduates. So it is necessary to compare the expected lifetime eatings which can be computed using the earnings of those with job and the probabilities of taking a job. In this paper, we showed that the expected earings of university graduates are quite different by major and not only the difference of earnings but also the difference of job-taking probabilities are considerably contributing such differentials. Especially the expected earnings of medicine and education are considerably higher than those of other majors. These results are maintained almost identically with the change of estimation methods. But despite of these findings. it should be admitted that it was not possible to exactly measure the magnitude of differentials by major.

• Korean Journal of Clinical Laboratory Science
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• v.36 no.2
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• pp.144-152
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• 2004

With technological advances in automatic hematology analyzers, primary and screening differential counts of white blood cells (WBC) are done with automatic hematology analyzers. They are using different measurement and analysis principles, so differences in WBC differentials and WBC morphology flag exist. This study was carried out to analyze WBC differential counts and WBC morphology flags comparing them with the manual method. Patient EDTA samples in Vacutainer requested for WBC differentials were analyzed with XE-2100. And those samples with suspect flags messages index over 100 were selected and were analyzed with ADVIA-120. Peripheral blood smear film was subsequently made. Three investigators counted 200 cells each (600 cells) in 111 Wright-Giemsa stained blood films. Between two automatic hematology analyzers, neutrophil, lymphocyte, eosinophil, and monocyte showed good correlations, but basophil had moderate correlation. Among automatic hematology analyzers and manual count, neutrophil, lymphocyte, and eosinophil had good correlations, but monocyte had moderate correlation. XE-2100 had higher monocyte, which was due to atypical lymphocyte and myeloblast. LUC in ADVIA-120 was not due to monocyte in XE-2100. Morphology flagging rates were 146.9% in XE-2100 and was 93.2% in ADVIA-120. Positive predictive values of morphology flag were 58.2% in XE-2100 and 54.4% in ADVIA-120. Flags such as atypical lymphocyte, immature granulocyte, and left shift had higher predictive values and those such as N-RBC, platelets clump, and blast had lower ones. Between automatic hematology analyzers, WBC differentials showed good correlations. Predictive values for morphology flags can be variable with changing criteria. Reviewing criteria for WBC differentials and morphology flags should be established in each laboratory with regards to size of laboratory and patients it serves.

• Korea journal of population studies
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• v.34 no.3
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• pp.31-54
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• 2011

The main purposes of this study are to describe regional differentials of the rate and to explore factors impacting on the regional differentials among the elderly's suicide rate in the Republic of Korea. Suicide data among 16 provinces from 2000 to 2008 were used for the statistical analyses. Six independent variables, such as crude divorce rate, GRDP per capita, welfare budget proportion, number of leisure facilities, number of medical and housing welfare facilities, and number of sports facilities are introduced for the multiple regression analyses. Elderly suicide rate, female elderly's suicide rate, and male elderly's suicide rate are used for the dependent variables. The findings of this study are as follows: Elderly's suicide rate has been increased constantly since 2000 and regional differentials of the elderly's suicide have been existed over time. According to the multiple regressions analyses, number of sports facilities(${\beta}$=-521), welfare budget proportion, and number of leisure facilities(${\beta}$=-219) have shown statistically significant negative relationships with the elderly's suicide rate. On the other hand, number of medical facilities(${\beta}$=0.550), crude divorce rate(${\beta}$=0336) have shown statistically significant positive relationships with the elderly's suicide rate in the Republic of Korea. Finally, some policy implications for alleviating the elderly's suicide rate are introduced and discussed.