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행정동별 접근도가 교통수단별 분담률에 미치는 영향 분석
장성만(Jang Seong-Man),안영수(An Young-Soo),이승일(Lee Seung-Il) 대한국토·도시계획학회 2011 國土計劃 Vol.46 No.4
To deal with urban environmental issues, efforts to shift car-oriented transportation system to transit-oriented one have been being made in modern cities. The City of Seoul also has aimed to reduce car user by providing lots of transit facilities. However, the modal share rate of transit has not been increased. Based on that, the purpose of this paper is to explore the accessibility values to transportation facilities and compare them with the rates of each mode traffic. This study set up a method to calculate the accessibility values of three modes: subway, bus and car. They were converted to Dong’s accessibility values to analyze their impacts on Dong’s modal share rates. For considering urban characteristics of each Dong, the density of population and building, the rate of job and residence, and the land price were included in the independent variables of the multiple linear regression model for the modal share rate analysis. This study found an apparent correlation between the accessibility values to the transportation facilities and the modal share rates, especially by subway. Additionally, the price of land fairly influenced the modal share rate of subway and car in a contrary way. The analysis method and results from this study would affect the urban transportation policy positively and be used to invigorate transit use.
장성일,김정연,Jang, Seong Il,Kim, Jeong Yeon 한국전자거래학회 2017 한국전자거래학회지 Vol.22 No.4
비트코인의 국내 활용 증가와 함께 비트코인을 둘러싼 다양한 문제들이 발생하고 있다. 이에 따라 제도적 차원에서 비트코인을 어떻게 다루어야 하는지가 지속적으로 논의되고 있으며 비트코인의 자산 성격을 분류하는 것은 이러한 논의에 중요한 기준점이 될 것이다. 본 연구는 비트코인의 자산성격에 관한 선행연구들을 기초로 하여 기능적 측면에서 비트코인의 자산성격을 분류하였다. 회귀분석을 통해 금과 미소비자물가지수(CPI), 미달러화가치(DXY), 주가지수(S&P500) 등과의 상관관계를 분석하고, 비트코인과 동일지표들 간의 상관관계를 분석하여, 금과 비트코인이 지표들과의 관계에서 유사하게 반응하는지 검증하였다. 분석 결과 비트코인은 금과 유사한 방향성으로 보이며 인플레이션과 통화가치에 대해 위험회피기능과 수익률측면에서 투자가치를 지닌 투자자산기능을 확인할 수 있었다. 이러한 기능성과 더불어 투자자산기능의 주된 요인인 가격변동성을 고려하면, 비트코인은 화폐로 분류하기 보다는 고위험 금융투자자산으로 분류하여 제도권에 편입하는 것이 관리적 측면에서 효율적일 것이다. The increased national utilization of Bitcoin results in multiple complications. Therefore, there are continuous debates on the subject, the main point being how to characterize Bitcoin's asset nature. The following study bases, focusing on the function value, justifies Bitcoin's asset characterization. Using regression analysis to construct relations between gold and indexes such as CPI, DXY, and S&P500 as well as the relation between Bitcoin and the previously mentioned indexes, the question of whether gold and Bitcoin reacted in a similar fashion to the same indicators was examined. The results conclude that Bitcoin has similarities with gold, showing that it is risk averse and an investable commodity in lieu to profitability when it comes to inflation and currency value. When considered with price volatility, the main force behind the function of investment asset, categorizing Bitcoin as a high-risk financial investment asset rather than as a currency within the system would be more effective for management.