• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2014년도 제50차 하계학술대회논문집 22권2호
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• pp.99-100
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• 2014

Even though many projects of new development and redevelopment for information systems are invested, they are not taken care of from the perspective of administration and evaluation. Also, decision makers fall short of not only support the process to check alternatives and select an alternative for investment and but also provide necessary information so as to maximize the effects of investments. That is to say, the suggestion of general direction toward IT investment is debatable. Against this backdrop, we propose a value measurement model to manage information systems.

• 산업경영시스템학회지
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• 제32권4호
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• pp.63-71
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• 2009

The traditional portfolio optimization problem is to find an investment plan for securities with reasonable trade-off between the rate of return and the risk. The seminal work in this field is the mean-variance model by Markowitz, which is a quadratic programming problem. Since it is now computationally practical to solve the model, a number of alternative models to overcome this complexity have been proposed. In this paper, among the alternatives, we focus on the Mean Absolute Deviation (MAD) model. More specifically, we developed an algorithm to obtain an optimal portfolio from the MAD model. We showed mathematically that the algorithm can solve the problem to optimality. We tested it using the real data from the Korean Stock Market. The results coincide with our expectation that the method can solve a variety of problems in a reasonable computational time.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(II)
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• pp.889-893
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• 1987

This paper suggests a model for the economic evaluation and the selection of alternatives using teletraffic. Economic evaluation is analyzed by the comparison of revenue loss which happens without trunk extension and additional revenue which results from trunk extension. Simulation technique is used as a methodology to apply economic evaluation to telephone system. The study results will provide a support in a optimal decision about investment strategies.

• 한국도로학회논문집
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• 제16권6호
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• pp.159-167
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• 2014

PURPOSES : The purpose of this study is to analyze the requirements of the road traffic safety moderator robot when road repairing. The road traffic safety moderator robot is road traffic safety equipment and to conversions mechanical engineering and IT when road repairing. METHODS : The study used AHP based on the survey from road repair related expert that field engineers, design engineers, public officials and professors. The survey used paired comparison. The survey items were safety, convenience and economics. The safety is classified as visibility or efficiency, the convenience is classified as utility or mobility and the economics is classified as initial investment cost or maintenance $ management cost. The survey alternatives were the road traffic safety moderator robot, traffic regulation by human, traffic regulation by mannequin and traffic signs. The software for AHP is Expert Choice 2000. RESULTS : The results of AHP analyze, the weighted value of safety was analyzed with the highest at 0.488 of survey items. The weighted value of convenience was analyzed at 0.295, the weighted value of economics was analyzed at 0.218. The results of the road traffic safety moderator robot, the weight value of efficiency and utility were analyzed with the highest at 0.284 and 0.259 of alternatives. The weighted value of initial investment cost and maintenance & management cost were analyzed with the lowest at 0.203 and 0.211 of alternatives. The consistency test results of each items, null hypothesis is rejected because the CR values were 0.000 respectively. Therefore, the study results are consistency. CONCLUSIONS : The result of this study, overall value of the road traffic safety moderator robot came off second-best of other alternatives. The road traffic safety moderator robot has been received highest praise by the result of the study as good road traffic safety equipment when road repairing because the weighted values of efficiency and utility were analyzed with the highest of survey items. The efficiency mean securing safety and the utility mean practical assistance when road repairing. The results of this study showed that the road traffic safety moderator robot will effective for traffic safety when road repairing. economics and visibility are that supplementation of the road traffic safety moderator robot because the weighted values of economics and visibility were analyzed with the lowest of survey items. The consistency test results are consistency because the CR values were 0.000 respectively.

• 한국지리정보학회지
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• 제16권4호
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• pp.64-78
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• 2013

다양한 단위사업안이 고려되는 유역치수계획에서 경제적 효율성이 높고 최적규모를 나타내는 최적 투자대안의 결정은 사업의 시행여부를 판단하는 매우 중요한 절차이다. 치수계획 수립시 투자대안은 다수의 단위사업간 관계를 고려하여 1개 이상의 단위사업으로 조합된 의사결정안을 의미하며, 이때 홍수저감시설의 종류와 규모별로 구성되는 단위사업의 수가 많아 최적 투자대안을 결정하는 것은 어려운 것이 현실이다. 따라서 본 연구는 경제적인 측면에서 최적 투자대안을 결정하기 위하여 홍수저감시설 중 댐증고사업을 대상으로 경제성 분석을 통해 최적규모를 결정하는 방안을 제시하고자 한다. 영산강 유역의 4개 댐의 증고높이를 결정하기 위해 단위사업별 홍수저감량을 산정하는 '시나리오1'과 단위사업의 조합에 의해 구성된 투자대안별 홍수저감량을 산정하는 '시나리오2'를 비교하였다. 연구결과 '시나리오2'에 의해 최적 규모를 결정하는 것이 '시나리오1'을 이용하는 것에 비해 유역 전체의 상황이 종합적으로 고려된 경제적인 규모결정에 적합한 것으로 나타났다.

• 한국인터넷방송통신학회논문지
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• 제15권3호
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• pp.131-136
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• 2015

타당성평가란 개별적인 공공교통시설 개발 사업을 본격적으로 착수하기 위하여 구체적으로 해당 사업계획을 수립하거나 기본설계를 추진하는 단계(이와 유사한 계획 또는 설계를 포함한다)에서 해당 개별사업을 대상으로 실시하는 것을 말한다. 주어진 자원을 효율적으로 배분하기위해 대안들에 대한 편익하고 경제성을 분석하여 최적의 대안을 산출하는 것을 말한다. 본 논문에서는 SOC평가체계의 중요한 부분인 타당성평가에서의 여러 요소들에 관한 연구방향과 미국일본의 사례분석을 제시한다. 기존의 비용편익분석과 더불어 미국, 일본의 평가기준을 살펴보았도 기존의 전통적인 통행시간 절감, 사고감소에 따른 편익뿐만이 아니라 사회적, 문화적 항목의 편익 등에 대한 연구가 활발하게 이루어 지고있음을 보였다. 특히, 존재가치, 집중효과 의 분석을 통하여 지역사회에 프로젝트가 미치는 영향을 사회적인 관접에서 계량화하는 노력들이 이루어 지고있어 이에대한 연구와 계량화에 대한 심도있는 연구가 필요하다.

• Journal of Information Technology Applications and Management
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• 제15권3호
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• pp.195-208
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• 2008

In an emergency management case, evaluating the economic value of information technology investments is a challenging problem due to the effects of decision making, uncertainty of disasters, and difficulty of measurements. Risk assessment and recovery process, one of the major functions in emergency management, consists of (1) measurement of damages or losses, (2) recovery planning, (3) reporting and approving budgets, (4) auctioning off recovery projects to constructors, and (5) construction for the recovery. Specifically and of our interest, measurement of damages or losses is often a costly and time-consuming process because the wide range of field surveys should be performed by a limited pool of trained agents. Managers, therefore, have to balance accuracy of the field survey against the total time to complete the survey. Using information technologies to support field survey and reporting has great potential to reduce errors and lowers the cost of the process. However, existing cost benefit analysis framework may be problematic to evaluate and justify the IT investment because the cost benefit analysis often include the long-run benefit of IT that is difficult to quantify and overlook the impact of managerial control upon the investment outcomes. Therefore, we present an alternative cost-centric control model that conservatively quantifies all cost savings to replace benefits in cost benefit analysis and incorporate the managerial control. The model provides a framework to examine how managerial decision making and uncertainty of disaster affect the economic value of IT investments. The current project in Emergency Agency in South Korea is introduced as a case to apply the cost-centric control model. Our work helps managers to better evaluate and justify IT-related investment alternatives in emergency management.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.819-829
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• 2020

This empirical research is aimed at testing the relationship of the big five personality traits namely openness to experience, extraversion, consciousness, agreeableness, neuroticism, and risk aversion with the investment intention of individual investors belonging to Balochistan, Pakistan. The primary data is collected through a self-administered questionnaire (a structured form that consists of a series of closed-ended and open-ended questions) from a sample of 397 active individual investors belonging to different districts of the province. The data is empirically analyzed by applying the Partial Least Square (PLS) path modeling technique by using the estimation package available in Smart-PLS. The findings of this study suggest that all the variables are statistically significant with investors' investment intention with risk aversion as the strongest predictor. Moreover, openness to experience, extraversion, consciousness, agreeableness, and risk are significantly and positively related to an investor's investment intention, whereas neuroticism is negatively related to an investor's investment intention. The results extended by this study can be used by financial planners and investment bankers to channelize the available financial resources in diversified portfolios. The results will help financial planners to make available diverse investment alternatives for investors in Balochistan, thus catering to their unique needs. Academia must offer courses on contemporary finance paradigm based on behavioral finance to enable future business graduates to make wise financial decisions.

• 문화기술의 융합
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• 제9권1호
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• pp.747-754
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• 2023

정보통신 기술의 발달로 나타난 온라인 플랫폼 기술과 자산 유동화 파생 상품의 새로운 투자 기법의 융합으로 온라인 소유권 분할 투자 플랫폼이 출현하게 되었다. 본 연구에서는 온라인 소유권 분할 투자 플랫폼 사업의 개념과 선행 연구, 사업화 모델과 서비스 프로세스, 시장 현황, 그리고 현안 논의 사항과 대안을 제시하였다. 최근 증권선물위원회의 분할 소유권에 대한 증권성 여부 판단은 온라인 분할 소유권 증권화 플랫폼 사업자의 안정적 사업 지속 가능성에 중요한 지침이 되고 있으나, 이에 대한 현황과 사례 분석에 따른 학술적 연구가 필요하다. 구체적인 시장 현안을 파악하기 위하여, 음악 저작권을 대상으로 한 "뮤직카우", 미술품을 기반으로 한 "테사", 실물 부동산을 대상 물품으로 하는 "카사", 실물 자산을 기초 자산으로 하는 "피스" 및 한우 출하 수익금을 대상으로 한 "뱅카우"의 대표적인 온라인 분할 투자 증권화 플랫폼 비즈니스의 사례를 분석하였다. 본 연구의 사례 분석을 통하여, 온라인 분할 투자 플랫폼의 기본 자산 물건에 따른 사업화 모델의 특징을 비교하여 제시하였다. 대다수의 사업화 모델들이 증권성이 있다고 판단되고 있어 자본시장법의 규정을 준수해야 하거나 혁신금융서비스의 대상으로 인정받아야 하는 상황이다. 실무적 관점에서 온라인 분할 소유권 증권화 플랫폼 사업자가 고려해야 하는 다양한 개선 방향을 제시하였다는 점과 투자자 보호를 위한 제도적 고려 사항을 정리하였다는 점에서 의의가 있다.

• 경영과학
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• 제29권3호
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• pp.135-156
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• 2012

Due to the rapid growth of social networking community (SNC), research into SNC user's behavior has recently emerged as an important issue in information systems. An individual makes a decision whether or not to continually use his or her own SNC and to purchase digital items to decorate it. Most previous research has focused on a user's continuance intention and has ignored the importance of purchase intention. This study develops and empirically tests an integrated model designed to predict a user's two types of behavioral intention：continuance intention and purchase intention based on the expectation-confirmation model (ECM) and a dual model of relationship maintenance mechanism.The results indicate that perceived usefulness, satisfaction, personalization, and switching cost have important influences on the formation of SNC continuance intention. The results also show that perceived usefulness and satisfaction does not have any significant impacts on purchase intention, while personalization, learning, attractiveness of alternatives, and continuance intention significantly affect it.