• 수산경영론집
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• 제45권1호
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• pp.17-31
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• 2014

This study examines trends in the overall income inequality of fishery household from 2003 to 2012 with the panel data of the Fishery Household Economy Survey. To investigate the potential determinants of income inequality, we decomposes the Gini coefficients into five income sources, fishery income, non-fishery income(non-fishery business income, non-business income), transfer income, irregular income and calculate the impact of each income sources on total income inequality. An evident trend toward increasing inequality of household income was found. Also, we find rising fishery income and non-fishery income play important role in the rapid increase of income inequality. Only transfer income appear to reduce total income inequality.

• 한국유기농업학회지
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• 제24권1호
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• pp.1-15
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• 2016

This paper aims to analyze inequality of maize self-sufficiency rate among countries in 1970-2011. Utilizing sub-group consistency of Generalized Entropy and Atkinson inequality index, the estimated maize self-sufficiency rate inequality is further decomposed into two steps' separate country groups. First, lower and upper income groups and then lower, lower middle, upper middle and high income groups are used based on the national classification of the world bank. It is inferred that 1980s' policy intervention and 1990s' Uruguay Round negotiations have different effect on the inequality among four different country groups.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제15권1호
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• pp.93-101
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• 2008

In this article we shall characterize the Heinz-Kato-Furuta inequality in several ways, and the best bound for sharpening of the inequality is obtained by the method in [7].

• 수산경영론집
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• 제54권2호
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• pp.77-90
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• 2023

This study employed the Gini coefficient decomposition analysis to classify and examine fishery household income inequality according to income sources. The raw data from the Fisheries Economic Survey by the National Statistical Office were used for the analysis after equalization according to the recommended method of the OECD. In particular, the Gini coefficient was decomposed by classifying with and without public subsidies, and the contribution, correlation, and marginal effect by income source were presented.As a result of the analysis, the inequality of fishing income and non-fishing income of fishermen was worsening, and the inequality of transfer income was continuously easing. Among them, fisheries subsidies have been analyzed to have the greatest contribution to the Gini coefficient of gross income and the highest relative marginal effect, although distribution inequality has been alleviated. On the other hand, other subsidies, including public pensions, were found to have the opposite contribution, correlation, and marginal effect to fisheries subsidies. The results of this analysis showed that even within public subsidies, the contribution to income redistribution might differ depending on the nature of the subsidy. In addition, in the case of other public subsidies, it can be seen that the transition from selective welfare to universal welfare occurs.

• 대한수학회논문집
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• 제22권2호
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• pp.315-321
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• 2007

We show an exponential inequality for negatively associated and strictly stationary random variables replacing an uniform boundedness assumption by the existence of Laplace transforms. To obtain this result we use a truncation technique together with a block decomposition of the sums. We also identify a convergence rate for the strong law of large number.

• 한국사회복지학
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• 제64권4호
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• pp.163-188
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• 2012

본 연구는 한국노동패널 자료를 활용하여 외환위기 이후 십여 년간 노인 소득불평등 추이의 영향요인을 분석하였다. 분석 결과는 다음과 같다. 첫째, 노인 소득불평등은 1999~2002년에 증가하고 2002~2008년에 감소하였다. 둘째, 성인 자녀와의 동거 감소, 독거노인 증가, 노인이 스스로 생계를 책임지는 노인가구주 가구 증가 등의 가구구성 변화가 불평등 증가에 기여하였고, 2002~2008년에는 사적이전의 불평등 기여도가 증가하였다. 셋째, 노인 교육수준의 향상과 근로활동의 변화가 불평등 증가에 기여하였다. 넷째, 근로소득의 비중이 감소하고 있고, 2002~2008년에는 근로소득의 불평등 기여도가 크게 감소하였다. 다섯째, 사회보험소득의 불평등 기여도는 1999~2002년에 증가하고 2002~2008년에 감소하였다.

• Forest Science and Technology
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• 제14권4호
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• pp.192-203
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• 2018

This study analyzed the distribution of forest income and other variable sources of rural household income and considered their importance for the reduction of income inequality and poverty. We employed Gini decomposition to measure the contribution of forest income and other sources of income to income equality and assess whether they were inequality-increasing or inequality-decreasing in the 14 villages. The forest income Gini correlation with total income was very high, $R_k=0.6960$, and the forest income share of total rural household income was 35% ($S_k=0.3570$). If the income earned from forest activities was removed, the Gini index would increase by 10.3%. Thus, if people could not access forest resources because of vast deforestation, perhaps from the limitations of government-managed forestry, unplanned clearing of forest land for agriculture or the granting of ELCs, there would be an increase in income inequality and poverty among rural households. The findings suggest that policy makers should look beyond agriculture for rural development, as forest resources provide meaningful subsistence income and perhaps contribute to both preventing and reducing poverty and inequality in rural communities. The study found that non-farm activities were inequality-increasing sources of income. The share of non-farm income to the total rural household income was $S_k=0.1290$ and the Gini index of non-farm income was very high, $G_k=0.8780$, compared with forest and farm income. This disagrees with other studies which have reported that non-farm income was inequality-decreasing for the rural poor.

• Journal of Preventive Medicine and Public Health
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• 제56권1호
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• pp.50-58
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• 2023

Objectives: Socioeconomic inequality in metabolic syndrome (MetS) remains poorly understood in Iran. The present study examined the extent of the socioeconomic inequalities in MetS and quantified the contribution of its determinants to explain the observed inequality, with a focus on middle-aged adults in Iran. Methods: This cross-sectional study used data from the Ravansar Non-Communicable Disease cohort study. A sample of 9975 middleaged adults aged 35-65 years was analyzed. MetS was assessed based on the International Diabetes Federation definition. Principal component analysis was used to construct socioeconomic status (SES). The Wagstaff normalized concentration index (CI_n) was employed to measure the magnitude of socioeconomic inequalities in MetS. Decomposition analysis was performed to identify and calculate the contribution of the MetS inequality determinants. Results: The proportion of MetS in the sample was 41.1%. The CI_n of having MetS was 0.043 (95% confidence interval, 0.020 to 0.066), indicating that MetS was more concentrated among individuals with high SES. The main contributors to the observed inequality in MetS were SES (72.0%), residence (rural or urban, 46.9%), and physical activity (31.5%). Conclusions: Our findings indicated a pro-poor inequality in MetS among Iranian middle-aged adults. These results highlight the importance of persuading middle-aged adults to be physically active, particularly those in an urban setting. In addition to targeting physically inactive individuals and those with low levels of education, policy interventions aimed at mitigating socioeconomic inequality in MetS should increase the focus on high-SES individuals and the urban population.

• 산업노동연구
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• 제24권3호
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• pp.1-34
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• 2018

본 논문은 2010년대 한국의 소득불평등 구조와 그의 변화를 분석하기 위하여 새로운 전체적인(holistic) 이론적 논의를 제시하고 그에 기초한 경험적 분석을 시도한다. 사회학, 노동경제학과 페미니즘에서 이루어진 불평등에 관한 논의는 특정한 영역의 불평등을 중심으로 하는 국지적 불평등에 초점을 맞추었다. 사회 불평등은 국지적 불평등을 넘어서는 전체적인 차원의 불평등에 대한 논의를 필요로 한다. 이는 이들 국지적 불평등을 통합하는 통합적 접근을 필요로 하며, 계급, 노동시장, 인구와 가족 차원의 논의를 포괄한다. 회귀분석 기반 불평등 분해 방법을 활용하여, 전체적 불평등에 영향을 미치는 젠더, 교육, 고용상의 지위, 직업, 가구구성과 재산이 전체 불평등에 기여하는 정도를 분해하여 분석한다. 본 연구는 기존의 국지적 불평등 연구에서 밝혀진 요인들 이외에 기존의 논의에서 간과된 가구 구성과 재산이 소득 불평등에 커다란 영향을 미친다는 점을 밝힌다.

• 대한가정학회지
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• 제40권9호
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• pp.143-159
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• 2002

This study investigates inequality of the private educational expenditure using the Family Expenditure Survey of 1990, 1996, 1998, and 2000. The major results are: first, inequality of the private educational expenditure has been relived between 1990 and 2000; second, despite decrease in household income right after the Korean economic crisis, the private educational expenditure has been increased in the households having middle and high school students; third, the gaps in the private educational expenditure between income groups are mainly due to the differences in the spending levels of the private education rather than differences in the percentages of households who spend any in the private education; fourth, in 2000, the gini coefficient of the private educational expenditure among households having elementary school student is 0.4832, and 0.6468 among households having middle and high school students; fifth, 30% of the households having middle and high school students who show the highest level of the private educational expenditure occupy 80% of the total private educational expenditure made by the whole households.