• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.780-785
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• 2005

This paper aims to consider an overall benefit-duration optimization (OBDO) problem for the sake of maximizing owner's economic benefits, whilst considering influences of schedule compression incurred opportunity income on the profitability of a large-scale construction project. Unlike previous schedule optimization models and techniques that have focused on project duration or cost minimization, with greater weight on contractors' interests, OBDO facilitates owner's economic benefits through overall benefit-duration optimization. In this paper, the objective function of OBDO model is formulated. An example is illustrated to prove the feasibility and practicability of the overall benefit-duration optimization problem. The significance of employing OBDO model and future research work are also described.

• 한국건축시공학회지
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• 제21권5호
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• pp.409-420
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• 2021

건설공사 발주자에게 건설현장 근로자에 대한 안전보건관리 책무를 부여하는 안전보건대장 제도가 「산업안전보건법」 전부개정에 포함되어 도입되었다. 안전보건대장 제도에 대한 낮은 인식과 이행률로 발생되는 제도의 실효성 문제를 해결하기 위해서는 경제성 측면에서 제도의 효과성을 설명할 필요가 있으므로 본 연구에서는 안전보건대장 도입 당시 논의되었던 자료를 근거로 비용편익분석을 활용하여 안전보건제도 이행의 경제적 효과를 분석하였다. 안전보건대장 제도 이행에 있어 추가적인 비용이 발생하는 것은 설계안전보건대장의 작성 및 관리로 분석되었다. 작성비용과 산업재해 감소로 발생되는 직·간접적 편익을 비교한 결과 편익이 비용보다 높게 평가되었으므로 안전보건대장 제도는 건설공사 재해 감소와 경제적 효과를 발생시키는 것으로 판단된다.

• 수산경영론집
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• 제36권3호
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• pp.119-139
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• 2005

The purpose of this paper is to provide information that will help both fishing industry and fisheries authority understand the principals of individual transferable quota(ITQ) fishery management. Theoretical frameworks and primary features of ITQ fishery managemenet are the assignment of exclusive property rights for harvest of common - property fisheries resources. An ITQ fishery management is fundamentally different from the conventional fishery management and it gives an individual fisherman the right to catch a specified quantity of fish, his quota. With ITQ, fisherman's quotas are transferable, in whole or in part. An ITQ is a property with certain rights of use, namely, the right to catch a given quantity and species of fish in a specific location during a specific period of time. The right is exclusive in the sense that no one else has the right to use the quota without the owner's permission. The property may be assigned, traded, and exchanged; i.e., the owner has the right to transfer an ownership to others. An ITQ fishery management leads to both economic efficiency and resource conservation. Motivations to overexploit stocks and to overcapitalize should be lessened because fishermen no longer have to compete for limited resources. There are significant positive net benefits and advantages with ITQ fishery management than without. The potential benefits and advantages of ITQ fishery management include increased profits, economic stability, improved product quality, safer working conditions, less gear conflict, elimination of the race - to - fish phenomenon, less by - catch, less gear loss, improved investment climate, mitigation of market gluts, waste reduction, addition to fisherman's wealth, and compensation for fisherman exiting the fishery. As an independent observe to Red Crab Trap Fishery some of the benefits, problems, and effects, an ITQ fishery management in Red Crab Trap Fishery is still far from to be implemented. Many different and difficult aspects (biological, socioeconomics, administrative) are involved considering the implementation of ITQ fishery management in Red Crab Trap Fishery. Among other fishery management tools, the implementation of ITQ fishery management in Red Crab Trap Fishery is considered to be the best in achieving the better conservation of fisheries resources and their more economic and rational exploitation. Korean fisheries authority should pay great attention to the experience of the economic effects of the ITQ fishery management in Red Crab Trap Fishery in the hope of being able to implement at least some of those experiences into the Korean fishery management.

• 토지주택연구
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• 제2권3호
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• pp.205-215
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• 2011

Korea has experienced a remarkable economic achievement since the 1960s. However, behind this facade of growth and progress, a chronic housing shortage in the capital region, declining owner-occupation, rising housing costs, and polarization in housing conditions between the better-off and the worse-off clearly illustrate the impasse and crisis in housing that Korea now faces. In addition, the IMF crisis and the late global financial crisis shocked the Korean housing market. The Korean government has made significant policy changes to improve housing security for less-privileged groups. In order to achieve housing policy development, the Korean government has tried to employ of advanced countries. What are the benefits(merits) and dangers(demerits) of housing policy transfer between countries? This paper emphasizes that we must recognize about 'differences' rather than 'commonalities' between countries with respect to policy transfer. It also maintains that the government should play a main role as an enabler rather as a provider of 'low-cost' housing.

• 무역상무연구
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• 제61권
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• pp.29-55
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• 2014

Subject matter of international trade are various. They contain not only tangible assets such as goods but also intangible assets including service, technology, and capital etc. Technology, a creation of the human intellect, is important as it is the main creative power to produce goods. It can be divided into Patent, Trademark, Know-how and so on. These Technologies are protected by the national and international laws on regulations for the Intellectual Property Rights(IPR), since technology development is needed a lot of time and effort, and the owner of the technology may have crucial benefits for creating and delivering better goods and services to users and customers. Therefore, any licensee who wants to use the technology which other person(licensor) owns, he(the licensee) and the original owner(the licensor) shall make Technology Transfer Contract. Differently from the International Sales Contract in which seller provides the proprietary rights of goods for buyer, in the case of International Transfer of Technology Contract, the licensor doesn't provide proprietary rights of technologies with the licensee, on the contrary the right of using is only allowed during the contract. The purpose of this paper is to examine the main issues in International Transfer of Technology Contract. This author focused on the main obligations of both parties, namely licensor's obligation to provide the technology and licensee's obligation to pay the royalty. As every country has different local mandatory laws about Intellectual Property Rights(IPR) and these mandatory rules and laws prevails over the contract, the related rules and laws should be examined carefully by both parties in advance. Especially the rules and laws about the competition limitation in the local country of licensee and the economic union(like the EU) should be checked before contracting. In addition, the contract has much more complicate and delicate aspects than other international business contracts, so both parties should review carefully before singing the contract.

• 자원ㆍ환경경제연구
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• 제22권2호
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• pp.309-328
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• 2013

환경을 보호하기 위한 정부의 규제가 경제를 지속가능하게 만들기 위해서는 기술발전이 수반되어 경제체제내의 기업들에게 수익을 보장하거나 증대할 필요가 있다. 포터(1995)는 기업의 경쟁력이 환경을 보호하려는 생산기술의 혁신을 통해서 가능하다고 주장했다. 그러나 과연 기업의 경쟁력을 높인 혁신의 성과가 각 사회의 구성원들에게 적절하게 배분되었는지는 알 수 없는 일이다. 본 논문은 포터의 가설이 맞다는 가정 하에서 과연 경쟁력의 향상이 기업의 노동수요 증가로 이어져 경쟁력향상의 과실이 사회구성원 전체에게 돌아갈 수 있는 조건이 무엇인가를 살펴보았다. 이론을 통한 그 조건을 살펴본 결과 오염물을 처리하는 기술의 수준이 노동생산성 향상으로 인한 오염물증가를 충분히 감당할 수 있다면 비록 자본생산성 향상에 따른 생산량증대가 매력적이더라도 합리적인 경제주체는 노동생산성 향상을 통한 기술을 선택할 것이며 이에 따라 노동수요의 증가가 가능하다는 것을 증명하였다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2011년도 춘계학술발표대회
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• pp.871-874
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• 2011

The fast emerging of network technology and the high demand of computing resources have prompted many organizations to outsource their storage and computing needs. Cloud based storage services such as Microsoft's Azure and Amazon's S3 allow customers to store and retrieve any amount of data, at anytime from anywhere via internet. The scalable and dynamic of the cloud storage services help their customer to reduce IT administration and maintenance costs. No doubt, cloud based storage services brought a lot of benefits to its customer by significantly reducing cost through optimization increased operating and economic efficiencies. However without appropriate security and privacy solution in place, it could become major issues to the organization. As data get produced, transferred and stored at off premise and multi tenant cloud based storage, it becomes vulnerable to unauthorized disclosure and unauthorized modification. An attacker able to change or modify data while data inflight or when data is stored on disk, so it is very important to secure data during its entire life-cycle. The traditional cryptography primitives for the purpose of data security protection cannot be directly adopted due to user's lose control of data under off premises cloud server. Secondly cloud based storage is not just a third party data warehouse, the data stored in cloud are frequently update by the users and lastly cloud computing is running in a simultaneous, cooperated and distributed manner. In our proposed mechanism we protect the integrity, authentication and confidentiality of cloud based data with the encrypt- then-upload concept. We modified and applied proxy re-encryption protocol in our proposed scheme. The whole process does not reveal the clear data to any third party including the cloud provider at any stage, this helps to make sure only the authorized user who own corresponding token able to access the data as well as preventing data from being shared without any permission from data owner. Besides, preventing the cloud storage providers from unauthorized access and making illegal authorization to access the data, our scheme also protect the data integrity by using hash function.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2005년도 춘계학술대회 논문집
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• pp.325-332
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• 2005

최근 들어 초대형 선박에 대한 논의가 활발해진 가운데 선사들은 선박 대형화로 인한 규모의 경제 효과를 꾸준히 추구하고 있다. 기술과 경제성이 보장되는 한 당분간 이러한 선박 대형화의 추세는 지속될 전망이다. 선박대형화에 따라 거주공간의 위치변화에 대한 필요성이 조심스럽게 제기되고 있다. 본 논문은 초대형 컨테이너선의 거주 공간 재배치에 따른 경제성 평가 분석에 관한 내용을 다루었다. 선박의 초기 설계 단계에서, 도면 생성의 보완과 검증을 통하여 거주구역과 엔진실의 공간을 분리하는 제안을 하였다. 그에 관한 장단점을 분석하고, 실현 가능성 여부를 경제성 평가 분석을 통해 검토하였다. 경제성 평가 방법을 위한 목적함수는 요구운임지수를 사용하였다. TEU 증가에 의한 경제성을 전망하고, 이러한 공간 재배치에 따른 조선소와 선주의 경제성 평가를 분석하여, 선적 개수의 증가에 따른 경제성 전망을 제시하였다.

• 한국병원경영학회지
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• 제18권4호
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• pp.78-96
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• 2013

The purpose of this study is to analyze the emergency health care utilization using status according to income class. The target was the 2011 data out Korea Health Panel's raw data. 2011 data composed of total 17,035 people from total 5,741 households. This study set total 1,101 adults over full-20-years old having used an emergency health care utilization as its analysis target. In order to find out the number of emergency health care utilization use according to income class and the influential factors on emergency health care utilization cost, this study conducted the multiple regression analysis. And in order to more accurately analyze the emergency health care utilization use status depending on the income class and the features of emergency health care utilization use status, this study developed Models. As the result, this study found following findings. First, as the income class was lower, the gender was male, the age was lower, and the user has spouse, the user was not a business owner or a paid worker, the user is a house owner, the emergency medical facility type was a clinic, the means of transportation was others rather than 119 ambulance, the reason visiting emergency medical facility was belonged to others rather than accidents or poisoning, then the number of emergency was increased. Second, as the user was in higher income class, received the health insurance benefits, the using medical facility was general hospital, used 119 ambulance more often, stay days in emergency was shorter, then health care utilization cost was increased. In this study investigating the data out of Korea Health Panel, it was found that while the number of emergency health care utilization use was increased in the lower income class, but the emergency health care utilization cost was increased for higher income class. It is considered that this finding was caused from the facts that lower income class was more often exposed to dangers for physical health, so the number of emergency health care utilization use was increased, but their health care utilization cost was decreased because of their economic burdens against various examinations and their difficulties to pay such costs, comparing to that of higher income class. Therefore, in order to solve unequal problem of emergency health care utilization use between lower and higher income classs, it is required to set suitable solutions like the disease prevention effort by facilitating national health check-up programs, the enhancement of public health services in quantity and quality, the emergency health care utilization securing policy at using medical facilities, the promotional, educational activities about emergency health care utilization delivery system, the enhanced accessibility of emergency health care utilizations and emergency medical facilities.

• 재무관리연구
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• 제27권1호
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• pp.89-120
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• 2010

본 연구는 1997년 1월 1일부터 2008년 12월 31일까지 한국거래소의 유가증권시장과 코스닥시장에 상장된 기업을 대상으로 소유구조와 현금보유간의 관계를 실증분석 하였으며, 주요한 분석결과는 다음과 같다. 대주주 지분율이 클수록 대주주들이 이사회 참여를 통한 경영권 통제 등을 통하여 수익성이 낮은 현금보유를 증가시키는 방향으로 소액주주의 이익을 침해할 수 있다. 1대주주와 2대주주 간의 지분율 차이가 증가할수록, 그리고 대주주들 간의 소유집중도가 증가할수록 현금보유가 증가한다. 그리고 경영자지분율은 현금보유에 비선형적으로 영향을 미친다. 다시 말해, 경영자지분율이 낮은 단계에서는 이익침해가설에 따라 현금보유에 양(+)의 영향을 미치지만, 경영자지분율이 일정 수준 이상으로 증가하면 이해일치가설에 따라 음(-)의 영향을 미치며, 경영자지분율이 매우 높은 수준으로 증가하면 다시 이익침해가설에 따라 양(+)의 영향을 미친다. 그리고 소유자지배기업은 경영자지배기업보다 대주주들이 현금보유에 미치는 영향력이 상대적으로 증가하여 현금보유를 증가시킬 수 있다. 이러한 결과는 한국기업의 현금보유는 주로 상충이론과 자금조달순서 이론으로 설명할 수 있으나, 대리인 이론으로도 부분적으로 설명할 수 있으며, 이는 대주주들이 소액주주와 균등한 혜택이 분배되는 재무정책을 기피하고 소액주주의 희생 하에 사적 이익을 취할 가능성이 있음을 시사한다. 따라서 우리나라에서도 대주주가 소액주주의 이익을 침해하는 행위를 예방하고, 소액주주의 이익을 보호할 수 있는 제도적 장치와 소유집중도를 완화시킬 수 있는 소유구조 정책이 필요하다고 생각한다.