• Journal of Wetlands Research
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• v.20 no.2
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• pp.190-200
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• 2018

This study estimated the marginal production value based on the production function approach to confirm the economic value of industrial water supply projects. For this, we analyzed 4 data sets classified by 11 industry types according to Cobb-Douglas Function, Translog Function, and Translog function with sector dummy variables. As a result, the average industrial marginal product value of the entire industry was 3,217~5,357 won/ton, 2,994~4,569 won/ton and 3,620~5,342 won/ton, respectively. The results by industry type were the largest in furniture and other manufacturing industries and showed the lowest marginal production value in the textile and leather industries. Overall, the results from the Cobb-Douglas function were highly evaluated. And the volatility according to data sets was also analyzed in the Cobb-Douglas function. There have been few studies on the economic value of industrial water compared to domestic water. It is considered that multidisciplinary consensus will be needed through active research in the future.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.2B
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• pp.173-179
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• 2009

Industrial water supplied by water resource project is essential input materials along with labor, capital and land for companies. It is very important to stably secure these input materials in order for the industry to generate additional values. If the supply of industrial water is stopped, it is known damage for the industry is greater than domestic water or agriculture water based on same amount of supply. Like this, the actual value of industrial water has been highly acknowledged from the intuitive perspective, but study on the value and benefits of industrial water has been rarely conducted. Therefore, this study verified the value of industrial water supplied from water resource project, and used marginal production value as a measure to estimate the benefits of industrial water in the analysis of economic efficiency. As a result of empirical analysis using Cobb-Douglas production function and Translog production function, industries' average marginal production value was $5,427KRW/m^3$ and $5,583KRW/m^3$ respectively. The marginal production value for eleven industries were estimated by using same method. The marginal production value by industries presented by this study will be used as important data to calculate benefits of industrial water in the future. Moreover, the result of this study will provide reasonable criteria for decision making on the allocation of water in emergency situation, and problem of resource supply from water resource project.

• Journal of Wetlands Research
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• v.8 no.2
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• pp.83-92
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• 2006

In this regard, we propose researches on the actual restoration costs of destroyed wetlands caused by development projects, as a way to derive the value of wetlands. And, we are willing to contribute in extracting the true value of wetlands by seeking the marginal cost of restoring destroyed wetlands, based on data such as biodiversity indicator which tells the recovery process of fauna and flora including fishes and birds. This means that once wetlands are destroyed, no one can tell the costs to restore them only in a view of costs which is one of two sides in economic analysis. Accordingly, knowing their restoration costs through derivation of marginal costs would give more precise decision-making for wetlands related projects.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2004.05a
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• pp.37-47
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• 2004

기업의 경영자 및 투자자들은 당해 기업의 성과평가에 지대한 관심을 가지고 있다. 성과평 가에 사용되는 지표로는 당기순이익, 주당순이익, 자본자본이익율 등의 여러 지표가 사용되어 왔으나, 경제적 실질을 반영하기에는 발생주의에 기초한 기업회계의 한계로 인하여 기업가치평가의 실질적인 지표로 활용하기에는 한계를 지적 받고 있다. 이에 대한 대안으로 EVA(Economic Value Added)가 제시되었고, EVA에 대한 관심이 증대되고 있다. 이에 본 논문은 EVA의 기업가치와의 관계를 고찰하고 EVA의 활용방안을 제시 하고자 한다

• Journal of the KSME
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• v.52 no.4
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• pp.44-49
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• 2012

최근 육상자원의 한계로 해양 자원에 대한 관심이 높아짐에 따라 수중에서 자유자재로 운용할 수 있는 수중로봇의 경제적 가치가 부각되고 있으며, 특히 기술적 한계를 극복하기 위해 물고기나 수중생물을 모사한 생체모방형 수중로봇에 대한 연구가 활발해지고 있어 이를 소개하고자 한다.

• Journal of the Korean Data and Information Science Society
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• v.28 no.5
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• pp.1109-1123
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• 2017

This paper examines there is any differences among determinants of cash holdings and marginal value of cash depending on the life-cycle of firm. To accomplish these objective, we collect financial and market data of KRX listing firms for a period of 2001-2013. We present evidence of significant effect of life-cycle on the cash holdings determinants and marginal value of cash. Specially, the effect of investment opportunity related variable are varies through life-cycle. The results also suggest that marginal values of cash in the introduction stage and exit stage is higher than those in other stages. Overall, this means that the motive of cash holdings in Korean firms is weak. and shareholders place different value on a firm's cash holdings depending on the life-cycle.

• Environmental and Resource Economics Review
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• v.12 no.3
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• pp.427-452
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• 2003

Demand analyses often assume perfect substitution and some level of aggregation before analysis and data collection. Earlier works on this subject are carried out in the context of ordinary demand systems. However, perfect substitution is a degenerate special case in the systems and it is much more easily handled in a system of marginal value functions and no previous analysis has used the marginal value functions to test for perfect substitution and make possible aggregation with prior restrictions. In this article, we present the empirical results on a system of marginal value functions in fisheries and pose testable results of perfect substitution and aggregation. The contribution of this article is new establishment of a set of restrictions implying perfect substitutability among all commodities and the application to the problem of commodity aggregate. A system of marginal value functions is estimated in fisheries and its implication of perfect substitution is reasonably drawn.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.329-331
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• 2009

본 논문은 대전지역의 벤처기업을 대상으로 최고경영자의 경영가치를 분석하였다. 경영가치는 인적자원관리를 비롯한 경영전반에 영향을 미치는 중요한 변수이다. 그러나 최근까지도 경영자의 경영가치와 인적자원관리를 다룬 연구는 부족하다. 본 연구는 일정한 한계에도 불구하고 이러한 중요한 주제를 다루었다는데 의의가 있다.

• Environmental and Resource Economics Review
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• v.6 no.1
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• pp.87-109
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• 1996

본 논문은 조건부가치측정법(CVM)의 적용에 있어 발생할 수 있는 비구분 효과에 대한 검증과 해석을 제시하고 있다. 한강과 한강을 포함한 4대강의 수질증가에 대한 편익을 조건부가치측정법을 이용하여 추정하고 이 과정에서 비구분효과의 발생 원인을 분석하고 있다. 본 논문에서는 비구분효과의 발생 가설로 대체효과 뿐만 아니라 새로운 가설인 순편익효과를 설정하였다. 연구결과는 대체효과 뿐만 아니라 본 논문에서 세운 새로운 가설인 순편익효과가 비구분효과의 원인으로 크게 나타났다. 본 연구 결과로 볼 때 비구분효과가 조건부가치측정법의 자체적 한계라기 보다는 설문의 구성 및 과정상의 문제임을 제시하고 있다.

• Journal of Korean Society of Transportation
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• v.26 no.6
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• pp.133-142
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• 2008

The term, travel time reliability, refers to variations in journey time that travelers cannot predict. This issue has been one of the main research topics in transport studies. This paper, especially, investigates the value of travel time reliability. The marginal substitution rate method is suggested as the way for the valuation and travelers' stated preference data are collected based on a choice experiment. A mode choice model is estimated using the data surveyed. The parameters of travel costs and travel time reliability from the model are used to calculate the marginal substitution rate that is interpreted as the value of travel time reliability. The value is arranged by travel areas of intercity and urban trips and by journey purposes of working and non-working types. The result of this research is expected to be helpful of conducting more cautious economic feasibility studies of transport schemes.