• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2013년도 추계학술대회
• /
• pp.754-756
• /
• 2013

최근 전자전(Electronic Warfare)에서는 기존 레이더 신호와는 다른 펄스 내 변조의 특성을 가지고 있는 저피탐확률 (LPI : Low Probability Intercept) 레이더가 도입/운용되고 있는 추세이다. 이러한 LPI 레이더를 탐지하기 위하여 본 논문에서는 펄스 내 변조를 식별하는 방법을 기술한다. 특히 레이더 펄스 내 변조 형태 중, 다양한 주파수 변조 패턴을 가지고 있는 FM(Frequency Modulation) 계열의 변조 형태를 식별하는 방법과 식별에 활용되는 특징인자를 제안하는데 초점을 맞추고 있으며, 이렇게 제안된 식별 방법 및 특징인자는 MathLab을 통해 성능을 검증하였다.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권10호
• /
• pp.73-85
• /
• 2020

As an effort to achieve sustainable development and increase people's welfare, financial inclusion has become the policy agenda of many countries. Therefore, the effect of financial inclusion on economic growth, poverty, income inequality, and financial stability in several countries in Asia has become the goal and this is the subject of this study. Financial inclusion is measured by 3 dimensions, namely banking penetration, access to banking services, and use of banking services. Poverty ratio below the national poverty line and the Gini coefficient are used as indicators of poverty and income inequality. Financial stability is measured by Bank Z-Score and bank nonperforming loans. The results from the hypothesis test shows that all dimensions of financial stability simultaneously have significant influence on economic growth, poverty, income inequality, and financial stability. On the other hand, the partial impact of financial inclusion dimension on economic growth, poverty alleviation, income inequality, and financial stability in ten countries of Asia has not been optimal. The derived results of this study is required to be interpreted and considered by the Governments of each country in developing strategies for increasing financial inclusion, so that the policy to achieve sustainable development and enhancement of people's welfare can be achieved.

• The Journal of Asian Finance, Economics and Business
• /
• 제8권11호
• /
• pp.21-29
• /
• 2021

The objective of this study is to see how a country's level of democracy impacts the relationship between financial development and income disparity. We argue that political regimes, supported by their degree of democracy, are important for various decentralization theories to predict the impact of financial development on income inequality. Our study tests this argument using Vietnam time series data for the period 2000-2020 through the ARDL model. The financial development variable is represented by five proxies, the income inequality variable is represented by the GINI coefficient and the role of democracy is represented by the Freedom House Index. Data serving for the study is taken from data sources with high reliability. The results of the study have strong evidence that (1) financial development has a positive impact on income inequality, (2) democratic government will reduce national income inequality. (3) And a higher degree of democracy tends to mitigate the positive impact of financial development on income inequality. Thus, our study contributes to the literature by providing a new look at the mixed results regarding the relationship between financial development and theoretical income inequality. Finally, the article provides policy implications for the Government of Vietnam.

• 무역학회지
• /
• 제44권6호
• /
• pp.217-230
• /
• 2019

This study investigates the impacts of international trade and foreign direct investment (FDI) on income distribution both nationally as well as provincially in Vietnam. This study uses panel data of 63 provinces in Vietnam for the period of 2008-2016 and a time series dataset from 1992 to 2016. We found the following results. First, the income distribution is significantly affected by per capita income. When we consider the Kuznets hypothesis, the intra-provincial income inequality of Vietnam's 63 provinces follows a regular U-shaped relationship. In contrast, the income distribution in Vietnam exhibits an inverted U-shaped relationship between the Gini coefficient and per capita income. Second, the inward FDI tends to reduce income gaps in each province through the employment of predominantly low-skilled workers. FDI, however, seems to increase income inequality throughout Vietnam. This result is potentially due to the strong concentration of FDI into a very few areas. Third, the effect of trade openness exhibits a decrease in inequality both within each province and in the whole country of Vietnam.

• The Journal of Asian Finance, Economics and Business
• /
• 제9권2호
• /
• pp.49-59
• /
• 2022

The relationship between income inequality and capital account openness is empirically investigated in this study, where macroeconomic variables have opposing effects. Panel data used in the study from the KAOPEN Index and World Bank consists of 28 Asian countries and has been examined; it contains annual observations from 1970 to 2018. The data is examined using a random-effect model based on GMM estimates. Income inequality and capital account openness are positively and significantly related, according to our findings. Overall, the findings imply that increasing income gaps reduced capital investment in nations with large discrepancies. The growing economic discrepancy is being caused by the rich's increasing income share at the expense of the poor. In Asia, inward capital account openness exacerbates income inequality, while outward capital account openness exacerbates it. As a result, income inequality slows economic growth, leading to inflation, unemployment, and increased government spending in several Asian countries. Our control factors, GDP, and other secondary school enrolments, all had a statistically significant negative relationship with income inequality. Income disparity has a positive and statistically significant association with government spending, inflation, population, trade openness, and unemployment. Income disparity has a negative association with capital account openness, gross domestic product, and secondary school enrollment.

• East Asian Economic Review
• /
• 제26권4호
• /
• pp.305-336
• /
• 2022

This study applied the macro-micro simulation model (i.e., what-if analysis) to investigate the impact of transport related to the Belt and Road Initiative (BRI) on poverty and income inequality in Laos. We selected Laos as a case study of a developing country. We used the standard GTAP model with the GTAP database (version 10) for the macrosimulation, whereas we used the household model with the latest Lao household data from 2019 for the microsimulation. Our findings revealed that the output of the Lao economy was anticipated to increase by up to 0.3%, while the poverty rate was anticipated to decline from 17.0% to 15.7%. However, there would be winners and losers in industries and groups of households in different areas. In particular, rich households with a comparative socioeconomic advantage, such as in education, engagement in nonfarm business, and infrastructure access, would mostly gain benefits; consequently, this would lead to higher inequality in Laos. Therefore, the inequality index (i.e., the Gini coefficient) would increase from 41.2 to 60.1. After a simulation of BRI transport, we also found that some nonpoor households, which are mainly associated with farm activities and lower educational levels, would fall into poverty.

• 한국경제지리학회지
• /
• 제25권4호
• /
• pp.484-498
• /
• 2022

이 연구의 목적은 전국 229개 시군구를 공간 단위로 설정하여 태양광 발전의 입지, 분포 그리고 변화를 분석하는 것이다. 이를 위해서 첫째, 2020년 시군구별 발전량과 발전설비 용량을 통해서 태양광 발전의 분포를 분석했고, 둘째 2017년부터 2021년까지 시군구별 발전설비 증가량을 확인하여 시계열적 변화를 추적했다. 분석 결과, 발전량, 발전설비 용량 및 증가량 모두 몇몇 시군구에 집중되었는데, 그 정도는 상위 5개 시군구가 차지하는 비중이 12% 이상, 상위 10개 및 20개 시군구로는 각각 20%와 33% 이상이었고, 태양광 발전에 대한 지니 계수는 약 0.6이었다. 따라서 시군구 단위에서 태양광 발전의 불균등한 분포가 확인되었다.

• 아태비즈니스연구
• /
• 제15권1호
• /
• pp.99-111
• /
• 2024

Purpose - This study aims to quantify the long tail effect in the digital economy. It also investigates the role of digital platform before and after the COVID-19 pandemic. Design/methodology/approach - We take advantage of a granular data set from one of the biggest digital platforms in Korea. Rather than computing the absolute number of products sold or the Gini coefficient, we estimate the slope of the log-linear relationship of the non-parametric sales distribution. Findings - We find that the use of online food order and delivery services is positively associated with individual restaurant's sales growth. We also document that the long tail effect is increasing over time. Long tail effects are clustered in the cross-section where average revenue per order is high or the restaurant belongs to the top 50% of the sales distribution. Research implications or Originality - The findings may indicate that digital platforms are contributing to the development of the digital economy in Korea. Also, we confirm that digital platforms make it possible for small and sole proprietors to go through the difficulties induced by the COVID-19 pandemic.

• 재활복지공학회논문지
• /
• 제8권4호
• /
• pp.239-244
• /
• 2014

본 연구는 2010년부터 2012년까지의 장애인고용패널조사 자료를 적용하여 구성집단별 보건의료비 불평등을 분석함으로써 장애인 가구의 보건의료 불평등 개선정책 수립에 기초자료를 제공하는 것을 목적으로 이행되었다. 분석결과, 지니계수에서는 여성장애인, 경제활동 미참여, 40대, 신체외부장애, 중증장애인일수록 보건의료비 지출에서 더욱더 불평등하였으며, 경북지역은 불평등이 계속 높아지는 것으로 나타났다. 그리고 보건의료 소비가 낮은 그룹에서의 격차에 가중치를 부여한 엔트로피지수에서는 여성장애인, 경제활동 미참여, 정신적장애, 중증장애인일수록 보건의료 소비가 더욱더 불평등하였으며, 울산과 경북지역은 불평등이 심해지는 것으로 나타났다. 그리고 구성집단별 요인분해에서 집단 간보다는 집단 내의 보건의료비 불평등이 높게 나타났다. 이러한 결과를 토대로 연구의 제한점과 함의를 제안하였다.

• 대한지리학회지
• /
• 제48권1호
• /
• pp.56-71
• /
• 2013

본 연구의 목적은 한국의 도시들을 대상으로 산업의 공간분포특성을 규명하고 그 결과를 이용하여 산업분류를 수행하는 것이다. 이를 위해 본 연구는 15개 산업부문에 대하여 한국 내 82개 도시를 분석하였다. 분석에서는 지리적 및 비지리적 측정방식을 이용하여 산업부문의 집중과 산업 간의 연계패턴을 파악하였다. 집중과 연계도의 측정을 위해 입지지니계수, 모란지수, 상관계수, 이변량모란지수를 이용하였으며 이들의 추정값에 기초하여 15개 산업부문을 분류하였다. 연구의 결과 화학공업은 높은 수준의 지리적 및 비지리적 집중을 보인 반면 조립기계전자산업은 지리적 측면에서만 높은 수준의 집중도를 보였다. 인쇄출판업, 도매업, 사업서비스업은 비지리적 측면에서 다른 부문들과 높은 연계를 나타냈다. 한편, 그 밖에 10개 부문은 의미 있는 분포양상을 보이지 않았다. 본 연구는 산업의 공간적 분포패턴을 종합적으로 분석할 수 있는 방법론을 제공하였다는데 의의가 있으며 이를 통해 산업클러스터 등 산업입지정책을 집행하는데 있어 유용한 정보를 제공해 줄 수 있다.