• The Journal of Asian Finance, Economics and Business
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• 제6권4호
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• pp.37-43
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• 2019

The research aims to study the relationship between export performance and stock return of Vietnamese fishery companies. To conduct this study, quarterly data was collected for period from 2010-2018 of 13 fishery companies listing in Ho Chi Minh Stock Exchange (HOSE) and Ha Noi Stock Exchange (HNX). The export performance was measured by export intensity, export growth and export market coverage. In addition, interest rate, exchange rate, GDP, firm size, profitability, and financial leverage were considered as the control variables in the research model. Panel data analysis with Generalized Least Squares model was employed to estimate the predictive regression. The findings indicated that export intensity and export growth have a significant and positive relationship with stock returns. However, export market coverage has not a significant relationship with stock return at the 0.05 level. Profitability, financial leverage, and exchange rate have a positive relationship, while interest rate and GDP have no relation to stock return at the 0.05 significance level. The findings imply that investors should consider the export intensity instead of export growth and export market coverage as selecting stock of fishery exports firms to invest; managers should increase export intensity to increase company's stock price or firm market value.

• 한국환경과학회지
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• 제27권12호
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• pp.1249-1260
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• 2018

The present study aimed to examine participants' perception regarding improvements in education for their return to a mountain village, based on "satisfaction, motivation's achievement, and effectiveness." Survey was conducted with 80 participants in 2017, of which 64 valid responses were used for statistical analysis. SPSS 21.0 program was used to conduct descriptive statistics, reliability analysis, factor analysis, and multiple regression analysis. The major findings were that a higher level of "satisfaction regarding the instructor and teaching materials" resulted in a higher level of motivation's achievement of technology skills, social skills and effectiveness in interpersonal exchange. The findings also revealed that if "the content of education" were satisfactory, there was effective self development. In addition, the higher the motivation's achievement of social skill, the higher the perception in effectiveness of self development and interpersonal exchange. The study can contribute to provide baseline data for improvement of education on return of people to their mountain villages, which are collaborating with civic groups, governments, research institutions and enterprises.

• 한국농촌건축학회논문집
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• 제14권4호
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• pp.143-152
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• 2012

The purpose of this study was to provide practical data for proposing the housing environment support policy, fit for returners-to-village. For the purpose, this study focused the patterns of returners-to-village according to their experience of rural life, and their ways of settlement like planning and getting land and house. The questionnaires were answered by 91 persons who were living in Chungbuk area, and were analyzed chi-analysis on their socio-demographic characteristics according to experience of rural life, preparation of settlement and construction. The ANOVA were used to analyze their pattern of return according to experience, the period for getting house, and their satisfaction level of house size. The results were as follows. First, the returners showed differentiated tendency according to their experience of rural life, in their age, family life cycle, education level and income source after return. The experience of rural life explained the purpose of return and the living pattern after return. Direct experience group was mostly occupational farmer; indirect experience group mostly pursued good health & green life; non experience group mostly pursued green life. Second, the experience of rural life also explained differentiated tendency of returning preparation. In raising money, direct experience group mostly raised it privately but indirect or non experience group mostly used bank loan. Third, the returners mostly constructed new houses; non experience group almost constructed newly, but there were cases to utilize existing or vacant house in direct experience group, and indirect experience group favored existing house or remodeling of vacant house.

• 디지털융복합연구
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• 제12권6호
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• pp.115-123
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• 2014

본 연구는 중소기업을 대상으로 첫째, 매출액순이익률, 총자산회전율 및 부채비율이 주주의 자본수익성지표인 자기자본순이익률에 어떤 영향을 미치는지, 둘째, 총자산순이익률이 자기자본순이익률에 미치는 영향관계를 부채비율이 조절하는지, 마지막으로 수정된 부채비율과 자기자본순이익률과의 영향관계를 실증적으로 분석하였다. 분석결과, 부채사용은 자기자본순이익률에 전반적으로 긍정적인 측면이 있는 것으로 나타났다. 그러나 수정된 부채비율의 2차함수 곡선모형에서 볼 수 있듯이 부채사용은 레버리지효과를 통해 자기자본순이익률의 증 감폭을 크게 확대하고 있음을 알 수 있다. 결국, 부채사용은 동전의 양면과 같이 긍정적인 측면뿐만이 아니라 부정적인 측면을 가지고 있다 할 것이다. 그래서 부채의 사용은 기존의 핵심 사업으로부터 창출되는 영업현금흐름(혹은 총자산영업이익률)으로 이자(혹은 이자율)를 커버할 수 있는 범위 내로 제한되어야 한다는 시사점을 제공하고 있다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2022년도 학술발표회
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• pp.458-458
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• 2022

It is essential to reduce global carbon emissions, mainly from energy use. The water supply and distribution sector is a vital part of human society and is one of the primary energy consumers. The procurement and distribution of water require electricity to operate the pump to deliver water to users with sufficient pressure. As the water users are spatially distributed over a wide area, the energy required to deliver water to each user differs depending on the corresponding supplying element (reservoir, tank, pipe, pump, and valve). This difference in energy required for each user also comes with a difference in pressure availability which affects the level of service for individual users and the whole network. Typically, there is a disproportion where users close to the source experience excessively high pressure with low energy consumption. In contrast, remote users need more energy to get the minimum pressure. This study proposes the Energy Return Index (ERI) to quantify the pressure return from particular energy consumption to supply water to each node. The disproportionality can be quantified and identified in the network using the proposed ERI. The index can be applied to optimize the network elements such as pump operation and tank location/size to reach a balanced energy consumption with the appropriate level of service.

• 한국농촌건축학회논문집
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• 제19권3호
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• pp.33-41
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• 2017

Recently, it is recognized that the increase of return farmers is an important task to revitalize rural areas. There is a growing need to improve the housing environment in rural areas by expanding rental housing supply in order to increase return farmers. The purpose of the study is to forecast the rural rental housing demand based on the questionnaire survey and to suggest the rural rental housing supply in the public sector. The rural rental housing demand consists of demand for rural residents and demand for return farmers. The survey was conducted for rural residents and potential return farmers. The rural rental housing demand was analyzed by using prospect of rural residents and return farmers in the future and the rate of intention to move into rural rental house derived from the survey. In this study, rural rental housing demand which does not take into consideration the rent level and rural rental house demand considering it are presented respectively.

• 한국컴퓨터정보학회논문지
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• 제14권8호
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• pp.153-159
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• 2009

본 연구는 근로소득자들이 매년 실시하는 연말정산제도의 인지정도에 따라 세법이 정하고 있는 소득공제 효과와 연말정산에 대한 참여도에 어떠한 영향을 미치는지와 그를 통해 나타나는 근로소득자들의 연말정산 결과에 대한 만족도를 고찰하였으며 실증분석을 통해 얻은 결과를 요약하면 다음과 같다. 첫째, 근로소득자들의 연말정산제도에 대해 인지정도가 높을수록 소득공제 효과에 긍정적인 영향을 주는 것으로 나타났다. 또한 연말정산제도 인지정도가 연말정산 참여도에도 중요한 선행요인임을 알 수 있었다. 둘째, 근로소득자들의 연말정산제도에 대한 인지정도가 높을수록 연말정산 결과에 대한 만족도에는 직접적으로 영향을 주지 못하는 것으로 나타났지만, 소득공제효과와 연말정산 참여도를 통해서 연말정산 결과 만족도로 연결되는 것으로 나타났다. 셋째, 근로소득자들의 연말정산제도에 대한 인지정도가 높을수록 적극적으로 연말정산에 참여하게 되어 연말정산 결과 만족도에도 긍정적인 영향을 미친다는 것을 확인했다. 즉 근로소득자들에 대한 연말정산 제도에 대한 교육과 홍보뿐만 아니라 소득공제 효과를 향상시킬 수 있는 세법 개정을 통해 연말정산에 대한 적극적인 참여를 유도하여 연말정산에 대한 결과 만족도를 향상시킬 필요가 있다는 점을 시사한다.

• International Journal of Railway
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• 제1권2호
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• pp.37-44
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• 2008

Safe, fast, efficient and effective railway is a main factor of economic development level of every country. This paper uses the DEA method to evaluate and compare the efficiency of 12 Regions of RAI. In addition, we introduce the reference(s) unit(s) for every inefficient region, and determine the amount of input decrease and/or output increase need to become them efficient. Findings indicate that in 2006, 4 regions of 12 are in Constant Return to Scale (CRS) status and 7 of them in Variable Return to Scale (VRS), and the average efficiency is 0.730 and 0.888, respectively. In other words, RAI works 27 percent under its capacity. More over results indicate that Hormozgan, Khorasan, Tehran and Isfahan Regions have the most efficiency respectively. The results show that the 8 regions, have been working in Increaser Return to Scale and 4 reminder Regions in Decrease Return to Scale. According to this results, we submit the suitable suggestion for improve the efficiency of the inefficient regions.

• 한국안전학회지
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• 제32권5호
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• pp.157-167
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• 2017

Millions of People die every year from diseases caused by exposure to outdoor air pollution. Especially, one of the most severe types of air pollution is fine particulate matter (PM10, PM2.5). South Korea also has been suffered from severe PM. This paper analyzes regional risks induced by PM10 and PM2.5 that have affected domestic area of Korea during 2014~2016.3Q. We investigated daily maxima of PM10 and PM2.5 data observed on 284 stations in South Korea, and found extremely high outlier. We employed extreme value distributions to fit the PM10 and PM2.5 data, but a single distribution did not fit the data well. For theses reasons, we implemented extreme mixture models such as the generalized Pareto distribution(GPD) with the normal, the gamma, the Weibull and the log-normal, respectively. Next, we divided the whole area into 16 regions and analyzed characteristics of PM risks by developing the FN-curves. Finally, we estimated 1-month, 1-quater, half year, 1-year and 3-years period return levels, respectively. The severity rankings of PM10 and PM2.5 concentration turned out to be different from region to region. The capital area revealed the worst PM risk in all seasons. The reason for high PM risk even in the yellow dust free season (Jun. ~ Sep.) can be inferred from the concentration of factories in this area. Gwangju showed the highest return level of PM2.5, even if the return level of PM10 was relatively low. This phenomenon implies that we should investigate chemical mechanisms for making PM2.5 in the vicinity of Gwangju area. On the other hand, Gyeongbuk and Ulsan exposed relatively high PM10 risk and low PM2.5 risk. This indicates that the management policy of PM risk in the west side should be different from that in the east side. The results of this research may provide insights for managing regional risks induced by PM10 and PM2.5 in South Korea.

• 재무관리연구
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• 제21권2호
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• pp.65-98
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• 2004

본 연구는 다양한 수익률 기간에서 미국 달러와 일본 엔화에 대한 우리나라 기업의 환노출과 비대칭성을 분석하고, 환노출이 어떠한 변수에 의해 영향을 받는지를 검토하는데 목적이 있다. 달러와 엔에 대한 외환위기 이후의 환노출을 분석한 결과, 장기수익률과 환노출 사이에 단조 증가하는 형태가 아니라 2개월이나 3개월 수익률에서 높은 환노출을 보이다가 감소한 후 다시 증가하는 모습을 보이고 있다. 또한 환노출의 결정요인 가운데는 성장기회가 두 통화 모두 대부분의 분석기간과 수익률에서 유의한 관계를 보이고 있다. 기업규모는 환노출과 음의 관계를 갖고 있으며, 외환위기 이후 단기 환노출에서만 발생하고 있다. 수출비중과 레버리지는 분석기간과 수익률에 따라 다양한 결과를 보이며, 유동성 변수는 미미한 영향을 보이는 것으로 나타났다. 비대칭성에 대한 분석 결과, 우리나라 기업의 환노출은 비대칭성을 갖고 있으며, 이는 시장점유율 이론으로 설명할 수 있는 것으로 나타났다. 또한 비대칭을 설명하는 요인 가운데는 수출비중이 공통적으로 나타나고 있어, 수출비중이 환노출의 비대칭성을 발생시키는 주요 원인인 것으로 분석되었다.