• 한국농촌건축학회논문집
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• 제18권1호
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• pp.11-18
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• 2016

The purpose of this study is to analyze the characteristics for the needs of rural residents and return farmer on rural rental housing. Through these rural rental housing as it wants to improve the living environment of rural areas. Housing problems of rural areas is one of the important factors that determine the quality of life in rural areas. Despite many rural development program it has been deteriorating housing conditions in rural areas. The purpose of this study aims to find the required characteristics of the rural residents and return farmer for rental housing system introduced in rural areas. As research methods, the survey it was required to rent the properties rural residents and expectant return farmer. The main analysis results are summarized as follows. First, expectant return farmer than rural residents are more flavors of rental Residential high. Second, rural residents prefer ratio was higher this apartment, expectant return farmer appeared to prefer the house. Finally, rural residents may prefer concrete homes, expectant return farmer appeared to favor the wooden houses. The results of this study can be a basis for effective strategies for future rural rental housing. More sustainable in the future, including the analysis of various parameters in progress by being linked to policy measures that will be provided. This study aims to be the foundation of sustainability in rural rental housing policy.

• 한국경영과학회지
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• 제31권3호
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• pp.81-96
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• 2006

We consider a rental company that dynamically manages Its capacity level through capacity addition and return While serving customer with its own capacity, the company expands its capacity by renting items from an outside source so that it can avoid lost opportunities of rental which occur when stock is not sufficient. If stock becomes sufficiently large enough to cope with demands, the company returns expanded capacity to the outside source. Formulating the model into a Markov decision problem, we identify an optimal capacity management Policy which states when the company should expand its capacity and when it should return expanded capacity after capacity addition. Since it is intractable to analytically find the optimal capacity management policy and the optimal size of capacity expansion, we present a numerical procedure that finds these optimal values based on the value iteration method. Numerical analysis is implemented and we observe monotonic properties of the optimal performance measures by system parameters, which are meaningful in developing effective heuristic policies.

• 대한토목학회논문집
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• 제42권2호
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• pp.219-227
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• 2022

우리나라는 고령화 현상이 가속됨에 따라 고령자 관련 교통사고 문제가 지속적으로 대두되고 있으며, 이를 개선하기 위한 노력은 시행 중이나 효과가 뚜렷하지 않다. 따라서 본 연구에서는 통행특성 및 인센티브 정책이 고령운전자의 운전면허증 반납에 미치는 영향을 검토하였다. 분석결과, 고령운전자의 주 구성원인 남성, 고 연령층, 낮은 대중교통 의존도, 긴 운전시간, 통행횟수가 많은 집단의 경우, 운전면허증 반납의사가 낮은 것으로 확인된다. 반면, 금전적 인센티브는 운전면허증 반납의사에 긍정적 역할을 하며, 이를 제공하는 방식에 따라 반납의사 정도에 차이가 존재하는 것으로 분석되었다. 다만, 운전면허 반납의사가 낮은 집단에서는 그 효과가 미미할 것으로 예측된다. 분석결과를 종합해보면, 현재의 정책 하에서는 고령운전자로 인한 사회적 문제를 개선하기에는 한계가 존재하는 것으로 예측되는 바 고령운전자의 운전면허증 반납 유도를 위한 접근방법에 대한 재검토가 필요하다.

• 한국지역지리학회지
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• 제9권4호
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• pp.559-575
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• 2003

본 연구의 목적은 인구이동에 대한 배출-흡입 모형에 근거하여 러시아 극동 지역으로 중앙아시아 고려인들이 귀환 이주하는 현상을 미시 거시적 관점으로 설명하는 것이다. 고려인들의 귀환 이주는 배출과 흡입 지역에서의 미시 거시적 요인들에 의해서 설명되었다. 배출 지역의 거시적 요인으로 국가의 언어 정책 그리고 내전과 민족 갈등을, 미시적 요인으로 교육열과 신분 상승 욕구를 분석하였다. 그리고 흡입 지역에서 작동한 거시적 요인으로 군 주둔지의 시설과 토지 이용의 허가 그리고 복권과 명예 회복법치 제정을, 미시적 요인으로 가족 혹은 친척의 관계를 분석하였다. 고려인의 귀환 이주와 관련된 두 가지 점을 논의하였다. 첫째, 중앙아시아 고려인의 귀환 이주는 민족 친화적 성격을 지니고 있다. 둘째, 귀환 이주와 관련한 한인 자치주 수립에 대해 고찰하였다.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2007년도 추계학술대회
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• pp.503-516
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• 2007

USA has distinct differences of economic policy by a ruling party. And, USA economy has mainly influenced on it of Korea. So, we examine whether a ruling party of Korea has different regime including rate of return in stock market. The Republican Party and Democratic Party have based on Milton Friedman and Keynes economy at each other's economic policy in the USA The Republican Party and Democratic Party have different interest level and excess return on equity, GDP growth rate, unemployment rate. Also, a ruling party of Korea has different regime and economic activity in this paper.

• 디지털융복합연구
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• 제16권10호
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• pp.213-222
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• 2018

본 연구는 고령운전자의 교통사고율 감소를 위하여 고령자의 운전패턴 인식을 통해 교통사고위험지수를 도출하고 그에 따라 운전면허증의 갱신 및 반납 정책에 반영하고자 실시되었다. 먼저, 고령운전자의 행동특성을 분석하여 교통사고를 유발하는 주요요인을 도출하여 교통사고 위험지수를 정의한다. 둘째, 자동차에 부착된 카메라, 거리센서와 스마트폰을 통하여 고령자의 운전패턴으로부터 교통사고 위험지수를 측정하는 방법을 제시한다. 마지막으로 컴퓨터 시뮬레이션으로 3개의 문턱 값을 도출하여 측정된 교통사고 위험지수로부터 사고위험도를 4단계로 판별하고 고령 운전자의 안전운전을 보장하기 방안을 제시한다. 제안하는 방법에 따라 고령운전자의 운전능력을 객관적으로 평가하여 운전면허 갱신주기의 재설정 및 자진 반납을 유도함으로써, 고령운전자의 교통사고 증가로 인한 사회적 비용을 최소화하기 위한 운전면허증 관리정책 수립에 적극 활용 가능할 것이라 믿는다.

• The Journal of Asian Finance, Economics and Business
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• 제7권6호
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• pp.29-37
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• 2020

This research seeks to determine the influence of investment opportunity set (IOS); profitability (Return on Assets - ROA), liquidity, business risk and firm size on debt policy. We used 42 manufacturing companies registered on the Indonesian Stock Exchange (Bursa Efek Indonesia) as object research. We used purposive sampling method to determined samples, consider the period observation from 2012 to 2016, and produce 168 units analysis. Data analysis uses the multiple regressions with the SPSS tools. The results of the study found that companies' debt policies in Indonesia are negatively affected by the liquidity. Investment opportunity set (IOS) has negative effect on debt policy. Meanwhile, ROA, Return on Invested Capital (ROIC), and firm size of a company has no impact on debt policy. These findings indicate that Indonesian manufacture companies do not see the high investment opportunity set and profitability as a policy basis for increasing debt. Moreover, the high profitability also does not cause companies to increase their debt ratio. Our study indicates that Indonesian manufacture companies use internal funds to fund their investment. This finding is a concern for creditors, as they can now see the ability of the companies, and especially their performance, in determining their credit policies.

• Asian Journal of Innovation and Policy
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• 제6권3호
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• pp.274-294
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• 2017

While studies have viewed the effect of Chinese talent-attracting programs launched by government since reform and open door policy, little of them has assessed these programs empirically and pertinently. This article intends to assess an important program - the Thousand Youth Talents Program (TYTP). Frist, this paper proposed a transnational migration matrix of the academics to clarify the dynamic mechanism of academic brain gain at the high end. Then, the Kaplan-Meier analysis and Cox regression model are used to empirically analyze the policy effect of TYTP. The results show that, academic ability have double edged impacts on brain gain at the high end, some scholars whose last employer's academic ranking is world's Top100 have stronger willing to return, and the negative effect of academic ranking decreases with time passing; while scholars with a tenure-track position, a tenure position or a permanent position tend to stay overseas, and the hazard rate of staying increases with age. The older scholars have more intentions to go back China, while gender was not a significant factor influencing academic return at the high end. That is, the talent-attracting programs has partly succeeded in bringing back the academics at the high end.

• 신재생에너지
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• 제18권2호
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• pp.60-72
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• 2022

The environmental, social, and governance (ESG) score is gaining recognition as important nonfinancial investment criteria. With climate change emerging as a global issue, energy companies must pay attention to the ESG impact on corporate performance. In this study, the ESG impact on the performance of energy companies was analyzed based on 23 companies selected from the S&P 500. The panel corrected standard error methodology was used. The Refinitiv ESG score was the independent variable, and financial performance metrics, such as Tobin's Q, return on assets, and return on equity, were the dependent variables. It was found that the ESG score is positively associated with long-term corporate value but not with short-term profitability in the electricity utility industry. Among the subcategories of ESG, the environmental and social scores also showed positive correlations with long-term corporate value. A direct incentive policy is recommended that can offset expenses for ESG activities to reduce carbon emission in the energy sector.

• East Asian Economic Review
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• 제21권2호
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• pp.147-165
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• 2017

This study quantifies the dynamic interrelationship between the KOSPI index return and search query data derived from the Naver DataLab. The empirical estimation using a bivariate GARCH model reveals that negative contemporaneous correlations between the stock return and the search frequency prevail during the sample period. Meanwhile, the search frequency has a negative association with the one-week- ahead stock return but not vice versa. In addition to identifying dynamic correlations, the paper also aims to serve as a test bed in which the existence of profitable trading strategies based on big data is explored. Specifically, the strategy interpreting the heightened investor attention as a negative signal for future returns appears to have been superior to the benchmark strategy in terms of the expected utility over wealth. This paper also demonstrates that the big data-based option trading strategy might be able to beat the market under certain conditions. These results highlight the possibility of big data as a potential source-which has been left largely untapped-for establishing profitable trading strategies as well as developing insights on stock market dynamics.