• 제목/요약/키워드: young inequality

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어촌계의 소득 격차와 변화에 관한 연구 (A Study on the Income Inequality among the Fishing Communities in Korea)

  • 옥영수
    • 수산경영론집
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    • 제39권3호
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    • pp.25-47
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    • 2008
  • The Fishing Communities (so-called Uchongae) in Korea was legally established in 1962. It has been gradually expanded by quantity, and we have total 1,969 communities in 2006. The major establishment purpose of Uchongae was put 2 functions. The first function is to make up the double industry structure in coastal region, and second function is to make economical condition for Uchongae. Nevertheless the Fishing Communities System in Korea was not successfully developed after first beginning. The Income gap have become heavily between fishing area and non - fishing area, including agricultural area. The income gap has been due to rapid industrialization and urbanization in Korea. And the income gap even have become heavily among Uchongaes. In this paper, It have been researched the degree of Income inequality among Uchongaes in Korea during 1986-2006. The income inequality degree was analyzed by Gini coefficient and Mean Log Deviation (MLD) using Lorenz Curve. According to analysis result, the Gini coefficient of Uchongaes in Korea has been about 2-times high from 0.0847 to 0.1770 during 20 years. And the MLD has been 5.4 times from 0.0125 to 0.0679 during same periods. This means to more wide the general Income Inequality among the Uchongaes in Korea. Especially, It means to more wide the gap of high ranking Uchongaes and low ranking Uchongaes that MLD index multiplier has been more high.

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세계화와 요소부존도가 소득불평등에 미치는 영향 분석 (The Impact of Globalization and Factor Abundancy on Income Inequality)

  • 최영준;박단이
    • 무역학회지
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    • 제42권6호
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    • pp.51-67
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    • 2017
  • 본 연구는 세계화와 요소부존도가 소득불평등에 미치는 영향을 분석하였다. 소득불평등에 관하여 전통적인 쿠즈네츠 가설에 기초하여 실증분석 모형을 설정하여 세계화로 이루어지고 있는 무역과 자본이동의 확대와 국가의 기본적 경제적 환경인 요소부존도의 효과를 분석하였다. WTO 회원국을 소득수준별로 4그룹으로 나누고 1995~2015년 기간 동안의 패널자료를 사용하여 실증분석하였다. 분석결과 고소득국을 제외한 중위소득국과 저소득국에서 쿠즈네츠의 역U자 곡선이 나타났다. 둘째로 무역의 확대는 고소득국가와 저소득국가의 소득불평등을 악화시키지만 중고소득국에서는 증가됨에 따라 국가내 소득불평등이 완화되었다. 세째로 해외직접투자의 유입액은 소득불평등에 크게 영향을 미치지는 않는 것으로 나타났지만 고소득국을 제외한 중고소득국과 중저소득국과 저소득국의 소득불평등을 악화시키는 것으로 분석되었다. 넷째로 자본부존비율이 높아 질수록 소득불평등이 완화되는 것으로 나타났다. 이는 자본의 증가로 생산성의 향상으로 소득이 증가되는 것으로 분석된다.

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An improved bonferroni-type inequality

  • Lee, Min-Young
    • 대한수학회보
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    • 제32권2호
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    • pp.329-336
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    • 1995
  • Let $A_1, A_2, \ldots, A_n$ be a sequence of events on a given probability space and let $m_n$ be the number of those A's which occur. Put $S_{0,n} = 1$ and $$ S_{k,n} = \Sigma P(A_i_1 \cap A_i_2 \cap \cdots \cap A_i_k), (a \leq k)$$ where the summation is over all subscripts satisfying $1 \let i_1 < i_2 < \cdots < i_k \leq n$.

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Receding Horizon Predictive Control for Nonlinear Time-delay Systems

  • Kwon, Wook-Hyun;Lee, Young-Sam;Han, Soo-Hee
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2001년도 ICCAS
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    • pp.27.2-27
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    • 2001
  • This paper proposes a receding horizon predictive control (RHPC) for nonlinear time-delay systems. The control law is obtained by minimizing finite horizon cost with a terminal weighting functional. An inequality condition on the terminal weighting functional is presented, under which the closed-loop stability of RHPC is guaranteed, A special class of nonlinear time-delay systems is introduced and a systematic method to find a terminal weighting functional satisfying the proposed inequality condition is given for these systems. Through a simulation example, it is demonstrated that the proposed RHPC has the guaranteed closed-loop stability for nonlinear time-delay systems.

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AN INEQUALITY OF SUBHARMONIC FUNCTIONS

  • Kim, Young-Ho
    • Journal of applied mathematics & informatics
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    • 제5권2호
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    • pp.525-537
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    • 1998
  • In this paper we prove the inequality of subharmonic functions between a non-negative subharmonic function u and a smooth function $\upsilon$satisfying |$\upsilon(0)$\mid$\leq u(0), $\mid$\nabla \upsilon $\mid$ \leq$\mid$\nabla u $\mid$\leq c\Delta u $, where 0$\leq$c$\leq$1 is a constant. Here $\mu$is the harmonic measure on $\partial$D with respect to 0.

AN EXISTENCE OF THE SOLUTION TO NEUTRAL STOCHASTIC FUNCTIONAL DIFFERENTIAL EQUATIONS UNDER SPECIAL CONDITIONS

  • KIM, YOUNG-HO
    • Journal of applied mathematics & informatics
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    • 제37권1_2호
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    • pp.53-63
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    • 2019
  • In this paper, we show the existence of solution of the neutral stochastic functional differential equations under non-Lipschitz condition, a weakened linear growth condition and a contractive condition. Furthermore, in order to obtain the existence of solution to the equation we used the Picard sequence.

ON H$\grave{a}$JEK-R$\grave{e}$NYI-TYPE INEQUALITY FOR CONDITIONALLY NEGATIVELY ASSOCIATED RANDOM VARIABLES AND ITS APPLICATIONS

  • Seo, Hye-Young;Baek, Jong-Il
    • Journal of applied mathematics & informatics
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    • 제30권3_4호
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    • pp.623-633
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    • 2012
  • Let {${\Omega}$, $\mathcal{F}$, P} be a probability space and {$X_n|n{\geq}1$} be a sequence of random variables defined on it. A finite sequence of random variables {$X_n|n{\geq}1$} is said to be conditionally negatively associated given $\mathcal{F}$ if for every pair of disjoint subsets A and B of {1, 2, ${\cdots}$, n}, $Cov^{\mathcal{F}}(f_1(X_i,i{\in}A),\;f_2(X_j,j{\in}B)){\leq}0$ a.s. whenever $f_1$ and $f_2$ are coordinatewise nondecreasing functions. We extend the H$\grave{a}$jek-R$\grave{e}$nyi-type inequality from negative association to conditional negative association of random variables. In addition, some corollaries are given.

중국 건강불평등 현상에 대한 고찰 (Investigation on the Health Inequality in China)

  • 미설;임재영
    • 국제지역연구
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    • 제20권2호
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    • pp.175-194
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    • 2016
  • 본 연구는 사회경제적 요인이 중국인의 건강상태에 미치는 영향을 통해 건강불평등 현상의 존재 여부를 고찰하는데 그 목적이 있다. 이를 위하여 중국인의 건강 상태와 사회경제적 특성과 관련된 다양한 정보를 포함하고 있는 자료원인 중국 건강 영양 자료(China Health and Nutrition Survey)의 2000년, 2004년, 2009년 자료를 병합하여 얻은 자료를 바탕으로 Ordinary Least Square model (OLS) 모델과 Ordered Logit 모델을 이용해서 실증분석을 수행하였다. 본 연구에서 얻은 실증분석 결과를 소개하면, 사회경제적 특성을 나타내는 변수들이 중국인의 건강 수준을 나타내는 변수들에 미치는 영향을 분석한 결과, 이들 변수가 중국인의 건강 수준에 미치는 영향이 통계적으로 유의했던바, 이를 토대로 2000년 이래로 중국의 건강불평등 현상이 존재함을 확인하였다.

ON AN L-VERSION OF A PEXIDERIZED QUADRATIC FUNCTIONAL INEQUALITY

  • Chung, Jae-Young
    • 호남수학학술지
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    • 제33권1호
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    • pp.73-84
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    • 2011
  • Let f, g, h, k : $\mathbb{R}^n{\rightarrow}\mathbb{C}$ be locally integrable functions. We deal with the $L^{\infty}$-version of the Hyers-Ulam stability of the quadratic functional inequality and the Pexiderized quadratic functional inequality $${\parallel}f(x + y) + f(x - y) -2f(x) - 2f(y){\parallel}_{L^{\infty}(\mathbb{R}^n)}\leq\varepsilon$$ $${\parallel}f(x + y) + g(x - y) -2h(x) - 2f(y){\parallel}_{L^{\infty}(\mathbb{R}^n)}\leq\varepsilon$$ based on the concept of linear functionals on the space of smooth functions with compact support.