• Journal of Korea Port Economic Association
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• v.29 no.4
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• pp.289-323
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• 2013

This study set out to estimate and compare benefits of damage in case of storm surge at the Masan Port by using two of the most representative methodologies used to estimate benefits in port disaster prevention facility construction, namely CVM(contingent valuation method), which estimates the values of non-market goods, and MD-FDA(multi-dimensional flood damage analysis), which had usually been implemented in flood or dam projects. The benefit estimation for 30 years of costs was 2.5689 trillion won for CVM and 2.9596 trillion won for MD-FDA, which indicates that there was no big difference in benefits among disaster prevention facilities. However, in-depth testing should follow to figure out whether MD-FDA can replace CVM, which has been tested with non-market goods, when estimating the benefits of disaster prevention facilities based on those findings.

• Journal of Korea Port Economic Association
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• v.37 no.2
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• pp.33-53
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• 2021

This study estimated the economic value of port redevelopment projects. The port redevelopment project consists of a combination of goods between market goods and non-market goods. The value of market goods can be measured at prices in the real market, but it is difficult to convert value estimates for non-market goods into currency values. Therefore, in this study, economic benefits of port redevelopment projects were estimated by the using the CVM. The estimated model used the Hanemann's model and the Bayesian approach to estimate the WTP of the sample group's using the single boundary model. Estimating the household's WTP, the Hanemann's model was estimated at KRW 10,038.33 and the Bayesian approach at KRW 12,217.1. As of the five-year period(discount benefits), the economic benefits of the port redevelopment project were estimated at 920.7 billion won for the Hanemann's model and 1.12 trillion won for the Bayesian model on a national basis. Meanwhile, as a result of estimating economic benefits(discount benefits) based on the administrative districts of Busan·Gyeongnam·Ulsan regions(five-year period), the Hanemann's model was estimated at KRW 140.4 billion and the Bayesian approach was estimated at KRW 170.8 billion.

• 한국경영정보학회:학술대회논문집
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• 2007.06a
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• pp.427-431
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• 2007

경제적 가치가 급증하고 있는 주파수자원은 유한하므로 이를 보다 효율적으로 배분하는 것이 전파관리의 중요한 과제가 되고 있다. 특히, 지나치게 높은 수준의 주파수 할당대가는 초기 투자비용을 증대시켜 경쟁력 있는 시장 형성과 원활한 서비스 제공을 저해하는 요소가 되며, 이에 따라 소요되는 비용은 소비자 요금으로 부당하게 부과될 수 있다. 따라서 본 연구에서는 주파수 이용대가를 국가별로 비교하여 현재 우리나라의 주파수 할당대가 수준을 분석하고자 한다. 세계적으로 주파수 할당대가의 산정방법은 IMT-2000의 사업자 선정을 계기로 크게 비교심사제도와 경매제도로 나누어 진행되어오고 있으며, 방법에 따라 주파수 이용대가의 결과는 다양하게 나타났다. 본 논문에서는 ITU, OVUM, OSIPTEL 자료를 바탕으로 약 30개 국의 IMT-2000 주파수 할당대가 산정 결과를 분석하고자 한다. 또한 주파수 할당대가 산정 시 영향을 미치는 요인을 관련 선행연구를 토대로 선정하여 회귀분석을 실시하고자 한다.

• Journal of Korea Water Resources Association
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• v.50 no.7
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• pp.467-473
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• 2017

Recently as algae phenomenon has been intensified, the need for additional dam flushing has been raised. To establish the more rational policies concerning the dam flushing, it is necessary to evaluate the dam flushing. This paper attempts to examine households' willingness to pay (WTP) for dam flushing by using a contingent valuation (CV). Especially, unlike other CV studies which used maximum likelihood estimation (MLE), this study employed Bayesian approach. This study surveyed a randomly selected sample of 1,000 households nation-widely, and asked respondents questions in person-to-person interviews about how they would be willing to pay for the additional dam flushing. Respondents overall accepted the contingent market and were willing to contribute a significant amount (1,909.4 won), on average, per household per year. The aggregate value amounts to approximately 35.7 billion won per year.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.39C no.9
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• pp.774-781
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• 2014

Demand for spectrum resources is increasing with the development of mobile telecommunications and so is their economic value. As a way to enhance the economic efficiency of use of spectrum resources, many countries have focused on the management of public and broadcasting spectrums which have traditionally been undercharged compared to their economic values. In this paper, we discuss the economic value valuation of the frequencies for the fisheries communications. The estimated value is the average value of the total equipment cost of the mobile communication services that their service coverage is nation-wide, and the value that adjusted the auction price for the LTE service frequencies in 2011 to the characteristics of fisheries communications.

• Environmental and Resource Economics Review
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• v.22 no.1
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• pp.147-177
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• 2013

Annual total values and thereby assets values of natural resources are determined by sample household WTP estimates and the extent of market. In the current domestic practice of CVM, total numbers of national households were used as the target population to measure total economic values including non-use values. This study proposed an alternative method of calculating potential user groups based on distributions of residential area of visitors in the sample using 4 provincial parks in the Chon Buk area as cases. The sample mean of WTP of Moak Mt. visitors, who are mostly from the nearby Chon Buk provincial area, was estimated to be about 8,215 won. On the other hand, the mean of WTP of Sun Woon Mt., whose visitors are evenly distributed from all over the country, was about 4,693 won. When applied national households as the target population, annual total benefits and thereby asset values of Moak Mt. was high enough to be 86 billion and 1.6 trillion won respectively. However, those of Sun Woon Mt. was low to be 52 billion and 1 trillion. On the contrary, when applied potential user groups of each park as the extent of market, annual total benefits and asset values of Sun Woon Mt. was reversed to be high--23 billion won and 400 billion won respectively. However, those of Moak Mt. was lowered to be 10 billion won and 200 billion won. Furthermore, asset values of the same park were differed by 2 to 8 times according to the way of setting the extent of market.

• Journal of the Mineralogical Society of Korea
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• v.22 no.4
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• pp.417-422
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• 2009

국내에는 충주 어래산 광화대와 홍천 광화대에 대한 탐사 결과 약 4,600,000 톤의 자원량을 확보하였으나 시추량의 제한에 따른 자원량의 부족과 낮은 가격으로 인해 경제성이 없는 것으로 잠정적으로 판단된 바 있다. 그러나 최근 희토류 가격이 2000년대 초에 비해 2~3배까지 상승하였으며 최저개발 품위가 REO 2%대로 낮아짐으로써 두 광화대에 대한 체계적인 정밀탐사를 통하여 보다 정확한 자원평가가 요구된다. 이 두 지역은 REE 뿐만 아니라 Fe, Sr 등이 수반됨으로써 그 잠재적인 가치를 높일 수 있을 것으로 판단된다. 하동 광화대는 Ti외 REE와 Li의 추출이 가능하여 경제성을 상승시킬 수 있을 것으로 판단된다. 양양 광화대는 Zr-Nb-REE 광화대로 알려져 있으나 체계적 탐사가 수행되지 않아 자원량의 산정은 수행되지 않았으나 REE 외 희유금속인 Nb을 수반하여 그 잠재적인 가치가 높다고 판단된다. 국내 REE 자원탐사는 체계적이고 계획적인 탐사가 진행 된 적이 없어 단일 광상에 대해 정확한 매장량 산정이나 경제성 분석 등이 이루어지지 않아 그 가치 판단이 모호함으로써 개발에 제한을 가지고 있다. 세계적인 수요량이 현재 REO 100,000톤에서 2013년에는 거의 200,000톤으로의 증가가 전망되고, Eu의 가격은 2000년 중반에 비해 최근 2배 상승하였으며, Dy의 가격은 3배 이상 급상승 추세에 있어 대부분 희토류 산화물 가격은 점차 증가될 것으로 전망한다. 전 세계 희토류 생산의 95%를 중국이 독점하고 있어 자원이 1개국에 편재된 극히 좋지 않은 자원환경으로 세계 각국에서 희토류 탐사에 전념하고 있는 실정이다. 아울러 하이브리드 카 생산이 증대되면 중국만이 생산하는 중희토류의 수요가 급증하여 가격 상승과 함께 수급에 차질이 있을 것으로 추측된다. 따라서 국내 희토류 자원에 대한 체계적이고 단계적인 중장기적 탐사를 통하여 REE 자원을 확보하여 개발한다면 국내 REE 자원의 수급을 원활히 할 수 있을 것으로 기대된다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.6D
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• pp.831-837
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• 2008

Korean construction industry faces diverse social and economical changes. Labor shortage, Free Trade Agreements (FTA), high oil prices alert industry practitioners to the new challenges and opportunities. It is time to make novel approaches for significant improvement of industry performance. Korean government and companies have plans for interdisciplinary research and development efforts. To this end, technology evaluation and market needs analysis should be extensively carried out prior to research initiation. Research programs developed in this way are presented in term of budget estimate, research scope and timeline. A framework for construction technology valuation methodology is also suggested to evaluate the holistic technology value and return on investment of research, development and commercialization.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2023.11a
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• pp.226-227
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• 2023

본 논문에서는 다차원법과 CVM을 이용하여, 도시홍수 방재시스템의 가치를 추정하였다. 방재사업은 예산의 편성과 집행과정 중에 연기 또는 집행 순서가 변경되기도 한다. 이는 즉각적인 효과가 드러나기 어려운 특징 등 때문에 시민 공감을 얻기에 어려우며, 정치적이고 경제적인 요인 등에 의한 것으로 추정된다. 따라서 시민들이 체감하고 있는 방재사업의 가치 규모를 추정하고자 하였다. 정책 공급자들이 홍수 방재 사업의 추진 결정에 참고하는 가치와 시민들이 생각하는 가치를 다차원법과 CVM으로 각각 추정한 결과, 다차원법으로 산정된 가치보다 시민들의 필요 가치가 낮게 추정되었다. 따라서 정책 수요자들의 공감을 이끌어 내기 위한 노력을 지속해야 할 것이다.

• Korean Journal of Construction Engineering and Management
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• v.18 no.4
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• pp.27-35
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• 2017

Based on Income-approach, this study develops the evaluation model which reflects construction industry's traits. Using Income approach, we derive future income's present value and evaluates the technological value by contribution to future income. As there exist more random variables in construction technology than in standardized manufactured products, we cannot help relying on not only quantitative estimation method but also qualitative evaluation by technology and market experts when we estimates construction technology value. Also, conservative estimation is needed for discount rate and cash-flow estimation, because of high uncertainty in sales and profits in construction industry. In empirical analysis, we applied economic periods of duration and cash-flow based on the standard guideline, and analyzed discount rate and technology factor based on characteristics of construction industry. The discount rate is estimated to 15% because of risk-premium increase by conservative evaluation. Technology factor is estimated to 46.7%, because technological intensity is estimated to 72% by technological superiority. Such implications can be inferred. Firstly, we need to build a database to diversify categories for division of sectors by activity or industrial classification which is now categorized only by two sectors in standard guideline. Secondly, the roles of experts who participate in technology evaluation are important because of volatility of construction technology.