• Journal of Korean Society of Forest Science
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• v.86 no.1
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• pp.9-16
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• 1997

The contingent valuation method(CVM) has been used to evaluate the economic value of nonmarket goods such as forest recreation. There are two commonly used CVM questionnaire formats: open-ended and closed-ended. This study evaluates the net economic value associated with day use downhill skiing, using CVM. A random, on-site survey of skiers in Muju, Korea generated the value estimates. In this paper a nonparametric test is introduced to find whether the difference between value estimates from open-ended and closed-ended formats are significantly different because the distributions of WTPs are non-normally distributed. The results show that the net economic benefits of a skier in Muju varies from \15,131 to \25,332. The closed-ended values were 1.15 to 1.67 times as large as the open-ended values, depending on the model specifications. In nonparametric test the mean WTPs of the open-ended and close-ended applications are significantly different. Its reason may be that closed-ended can be more reducing the incentive for strategic behavior than open-ended question. However, we cannot conclude that the closed-ended method is superior to the open-ended method.

• Journal of the Korean Society of Marine Environment & Safety
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• v.30 no.1
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• pp.43-57
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• 2024

As coastal areas have a distinct nature with the interaction of the lands and waters, they attract people to enjoy and experience the natural environments physically and intellectually; this generates cultural ecosystem services. Coastal beaches are one of the most common coastal areas for cultural ecosystem services. The purpose of this study was to 1) estimate the economic values of cultural ecosystem services derived from coastal beaches, and 2) expand the estimated values into other beaches across the country using a benefit transfer method. We divided the values of cultural ecosystem services into five different categories based on an extensive literature review: recreation and tourism, landscape and aesthetic, educational, heritage, and inspirational values. The values of tourism and recreation, landscape and aesthetic, and educational services were estimated using the choice experiments. The attributes of the choice experiments consisted of conservation funds, litter, water quality, seascape, landscape, and biodiversity, and the data were collected through online surveys with visitors of 11 representative beaches in Korea. Heritage and inspiration services were estimated using a market goods method based on their expenditures. These values were transferred to 257 beaches across the country. Study results can be used for policy decisions on various restoration and conservation projects caused by coastal erosion and development and on the need and extent of public investments.

• Environmental and Resource Economics Review
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• v.7 no.2
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• pp.31-51
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• 1998

우편설문조사를 이용한 조건부가치측정법을 통해 자료를 수집할 경우 무응답자의 발생은 보편적이며, 그러한 무응답자의 존재는 무응답자편의(無應答者偏倚) 가능성을 내재하고 있으므로, 표본의 통계치를 이용한 모집단에 대한 확대 적용을 위해서는 우선적으로 무응답자편의(無應答者偏倚)에 대한 검정(檢定)이 이루어져야 하며. 또한 무응답자편의(無應答者偏倚) 발생시 이에 대한 적절한 조치가 취해져야 한다. 본 연구에서는 다단계 우편설문발송법을 통해 수집된 자료를 이용하여 효과적인 무응답자편의(無應答者偏倚) 검정(檢定)의 수행과 무응답자군(無應答者群)의 평균지불의사액을 별도로 추정한 후 이를 이용하여 보다 합리적이고 정확한 총지불의사액(Aggregate WTP)의 도출방법을 제시하였다. 이는 우선적으로 무응답자편의(無應答者偏倚)를 분산분석을 통해 검정(檢定)한 후 선형외삽법으로 무응답자군(無應答者群)의 평균지불의사액을 추정하여 이를 모집단의 총지불의사액을 산출하는데 이용하는 방법으로 기존의 보수적인 방법들보다 상대적으로 저렴한 비용으로 무응답자편의(無應答者偏倚) 검정(檢定)을 가능하게 하며, 사회적 또는 인구특성상의 차이를 이용한 통계적 가중치 이용방법과는 달리 연구자의 직접적인 관심의 대상이 되는 지불의사액을 이용하여 무응답자편의(無應答者偏倚) 테스트를 하고 또한 무응답자군(無應答者群)의 평균지불의사액을 추정하여 보다 효율적이며 타당성이 있는 총지불의사액을 산출해 낼 수 있다는 장점이 있다.

• Journal of the Korean Institute of Landscape Architecture
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• v.44 no.4
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• pp.1-13
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• 2016

To detail a picture of the economic value of Miscanthus landscape conservation in terms of cultural services aspects of Ecosystem Services, Sunghaksan(Mt.), Hwawangsan(Mt.) and Jaeyaksan(Mt.), which are known for their Miscanthus colonies, were chosen as survey sites. After examining the willingness to pay for the value of Miscanthus landscape conservation by targeting of visitors each study area, the economic value of Miscanthus landscape conservation per capita aspects was evaluated using Contingent Valuation Methods(CVM) from the collected willingness to pay for economic value of Miscanthus scenery by site. After using the target Chi-square test to analyze the differences among each site, the correlation between specific variables was investigated. Willingness to pay for the Miscanthus landscape conservation was found to increase as the respondents' income became higher. The more environmental conservation efforts were being made in their daily life, the higher willingness to pay was for Miscanthus landscape conservation. Likewise in other studies, the higher the bid was, the less willingness to pay was. The per capita assessment of the Miscanthus landscape value of the logit models in the dual estimated using the factor extracted with each of the injected variable bounds was estimated for Seunghaksan (\38,277), Hwawangsan(\38,648), and Jaeyaksan(\48,891). The average of the three sites was estimated to be \38,679. Assessment of the economic value of these Miscanthus landscape sites saw high willingness to pay by visitors when compared to the current market price inflation, such as watching movies or amusement park admission, which could mean that visitors recognize the value of ecosystem services from nature in evaluating the Miscanthus landscape.

• Journal of Service Research and Studies
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• v.9 no.1
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• pp.87-97
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• 2019

The key to the success of IT services is to ensure user-oriented strategic planning and system design capabilities to accurately read the user's mind. In order to establish a stable UI/UX strategy that provides user-oriented service, estimating the size of the relevant market and predicting the growth potential should be given priority, but there is no research on this. Therefore, this study estimated the relevant market based on the 'SW market size (IDC Worldwide Blackbook.') As a result of estimating the amount and the number of cases, the planning and design area of UI/UX is lower than that of overseas market The results of this study suggest that it is necessary to systemize the establishment of UI/UX strategy that depends on individual competence so far, It is possible to make economic value judgments by standardization and quantification of UI/UX by establishing an opportunity to access the interface. From the technical viewpoint of application of the user's viewpoint on the existing interface, We expect to be able to lead the UX strategy management through the occasion of access to UI/UX. Identify needs and to demonstrate the value of UX strategy applied is significant.

• Environmental and Resource Economics Review
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• v.15 no.5
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• pp.961-974
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• 2006

This paper estimates output and price elasticities of the industrial water in order to provide the government with tools that help make educated decisions with regard with the water provision policies rendering the latter more efficient. The estimated output elasticity produces useful insights on the role of industrial water as an input into the production process while the estimate of price elasticity enablesus to forecast the effects of various water pricing policies. This paper employs the marginal productivity method in order to estimate the abovementioned elasticities. The magnitude of the estimated output elasticity imply that the value of industrial water is much higher than its average price while the price elasticity estimate suggests that the water pricing policy can be an effective tool of controlling the demand for industrial water.

• Journal of Korean Society of Forest Science
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• v.99 no.6
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• pp.900-907
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• 2010

Recreation forests are offer to personal development through recreation, education about nature, association with people, mind relaxation in forests. Most efficient method for measuring Recreational value of natural forest is economic approach, and Obtained by this approach, visitors to the recreational forests and other people will be able to explain recreational value. The value of the environment goods are not traded in the market, it's real value is difficult to measure. People have appreciated the value of the natural environment but it is not easy to answer the question how much monetary value a natural enjoy prosperity environment. This study is involved in giving the right recognition to the value of recreation and environment by estimating economically the value of the environment in which visitors stay, and presenting the appropriate price. The environmental value of a recreation forests is estimated through contingent valuation method (CVM). The annual recreation value per person of surveyed recreational forests is WTP with a mean between about \14,000 and 16,500. The recreation value of one recreational forest surveyed is annually between approximately 1.2 billion won and 1.4 billion won. The annual recreation value of Chungbuk Province recreation forests is presumed to be between about 15 billion won and 16.9 billion won.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.165-166
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• 2012

국내 선사와 선박의 안전관리시스템을 평가하기 위하여 평가 지표들을 종합적으로 적용할 수 있는 평가기준을 개발하였다. 추정된 비용과 편익을 기초로 순편익현재가치와 편익비용비율을 구하여 안전관리시스템 도입의 타당성을 분석하였다. - 생략

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2006.07a
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• pp.649-649
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• 2006

• Transportation Technology and Policy
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• v.10 no.5
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• pp.26-34
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• 2013