• Title/Summary/Keyword: Double-Bounded Dichotomous Choice Model

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Perceived Features of Cycling and Value of Public Bike System (공공자전거시스템의 사회적 가치와 자전거 특성의 관계성 연구)

  • Kim, Junghwa;Choi, Keechoo;Kim, Suk Hee
    • Journal of Korean Society of Transportation
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    • v.33 no.2
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    • pp.125-135
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    • 2015
  • In this study our main focus is to verify the relationship between social value of transportation system and its perceived features. To achieve this objective, we investigated the value of public bike system (PBS) through willingness to pay (WTP) analysis using contingent valuation method (CVM) and the survey was conducted for 1726 respondents who live in Suwon, Korea. Moreover the determinants related to features related to bicycle use were also gathered. The estimated binary logistic regression and censored regression reveal that the value of PBS is influenced by perceived features towards bicycle use incorporating non-congestion, transportation mode like auto and bus, and high mobility system as well as other variables such as income, bicycle ownership etc. Furthermore the results show that the perceiving of positive features to bicycle use leads to higher social value of PBS. Based on the findings, we discuss the importance of pre-review for transport policy implementation, and also explore the possibilities for application to PBS.

The economic effect of Korea-EFTA Mutual Recognition Agreement in the pharmaceutical industry using Conditional Valuation Method (CVM) (조건부가치평가법(CVM)을 이용한 한-EFTA간 제약 산업 상호인정협약 체결의 경제적 효과 분석)

  • Kwon, Tae-Hyuk;Lee, Sang-Won
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.5
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    • pp.389-398
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    • 2018
  • An MRA is considered to be an important policy tool within the WTO for overcoming technical barriers to trade. A number of studies on the economic impact of MRAs have demonstrated their positive economic effects. However, no studies have been conducted on MRAs in the pharmaceutical industry since analysis has been limited to industries as a whole or certain industries where some data were accumulated. Therefore, this paper analyzed the economic impact of MRAs for GMP inspection exemption in the pharmaceutical industry through the Conditional Valuation Method (CVM), a valuation technique for non-market goods. Pharmaceutical companies were asked whether or not they were willing to pay for the Korea-EFTA MRA through double-bounded dichotomous choice (DBDC) questions. The final WTP was estimated using the utility difference model developed by Hanemann (1984). As a result, annual economic effects on the pharmaceutical industry were estimated to be between KRW7.03 billion to KRW15.8 billion.

A Study on the Economic Valuation of the Suncheon Bay Wetland according to the Logit Model (로짓모형에 따른 순천만습지의 경제적 가치평가)

  • Lee, Jeong;Kim, Sa-rang;Kweon, Dae-gon;Jung, Bom-bi;Song, Sung-hwan;Kim, Sun-hwa
    • Journal of the Korean Institute of Landscape Architecture
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    • v.45 no.6
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    • pp.10-27
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    • 2017
  • Recently, the importance of recognizing the natural environment and the need for its conservation are increasing due to rapid urbanization. Suncheon Bay, designated as Scenic Site No. 41 and one of the World's Five Greatest Coastal Wetlands, is the only tideland among the tidal flats in Korea, which has salt marsh reserves. It has high conservation value from the ecological aspect. In addition to the Suncheon Bay National Garden, it provides various benefits not only to visitors but to local residents as well in terms of economics, environmental issues, and history and cultural aspects. Two million tourists visit the site annually, which has constantly highlighted the limits of ecological capacity. The valuation of the Suncheon Bay wetland is more important for the sustainability of the Suncheon Bay wetland than for its value as a tourism resource for the activation of the local economy. This study used the Logit model, which is commonly used among probabilistic choice models, to evaluate the economic value of Suncheon Bay wetland with the contingent valuation method(CVM). Applying the conservation value of the Suncheon Bay wetland to the benefit of KRW 8,200 for 1 person and 1 day, the benefit from exploration is KRW 2,050, the management and conservation value is KRW 3,034, and the heritage value is KRW 3,116. The results of this study are that benefit from the annual exploration of Suncheon Bay wetland was KRW 44.3 in billion, the management and conservation value was KRW 6.55 in billion, and the heritage value was KRW 6.73 in billion. When converted to the number of paying visitors per year, the conservation value is about KRW 177.1 billion. This study was conducted to evaluate the use and conservation aspects of the economic value of Suncheon Bay wetland. Based on the latent value of the Suncheon Bay wetland, it provides basic data about the efficient management and policy establishment of Suncheon Bay wetland. The study is significant in that the ecological sustainability of the Suncheon bay wetland and the value of non-marketable were evaluated based on the recognition of 'benefit through exploration', 'management and conservation value' and 'value of heritage'. It can be used as policy decision data on the integrated collection of the admission fee of the Suncheon Bay wetland and Suncheon Bay National Garden.

Study of Value Estimation of Environmental Education of Gyeongnam Forest Museum using CVM (CVM을 이용한 경상남도산림박물관의 환경교육 가치추정 연구)

  • Kang, Kee-Rae;Ha, Sung-Gyone;Kim, Hee-Chae;Lim, Yeon-Jin;Kim, Dong-Pil;Park, Chang-Kun
    • Journal of Korean Society of Forest Science
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    • v.105 no.1
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    • pp.149-156
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    • 2016
  • Forest museums can be defined as facilities for the collection, exhibition, and education of the forest or forest related artifacts or data. This study was performed to measure the educational value of Gyeongnam state forest museum's forest and its environment. The tool used was the Contingent Valuation Methods (CVM) which is well known as a value estimation tool of environmental goods. The study for the value estimation is performed from April, 2014 to October of the same year through selection of the subject, decision of proposed price, and orientation of the survey staffs and total of 386 surveys were used in analysis. The value estimation tool used the DBDC logit model and the input parameters were number of visit (time), degree of environmental education (contri), the environment conservation effort of the respondent (execu), the education level of the respondent (edu), and income of the respondent (inc) and trimmed mean (WTPtruncated) was used. The estimated value of flora and environment education per each person per visit is 23,338 won. When applied to the average annual visitors deducted from 2010 to 2014, which is 430,000 per year, the environmental value that Gyeongnam state forest museum is providing to visitors each year is about 10 billion won. The result of this study is significant to propose the value of forest education and environment that the forest museum is offering to the visitors in the current currency. This is an evidence to directly determine the value of the forest museum and therefore proposing an opportunity change the recognition toward the forest and environment education.

A Study on Estimation of Environmental Value of Tentatively Named 'East-West Trail' Using CVM (CVM기법을 이용한 가칭 '동서트레일'의 환경가치 추정)

  • Kee-Rae Kang;Yoon-Ho Choi;Bo-Kwang Chung;Dong-Pil Kim;Hyun-Kyeong Oh;Woo-Sung Lee;Su-Bok Chae
    • Korean Journal of Environment and Ecology
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    • v.36 no.6
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    • pp.676-683
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    • 2022
  • Due to the effects of rapid changes in the living environment since 2000 and the recent unforeseen pandemic, people are refraining from domestic and international traveling and movement, and outdoor activities for health and the public value of forest trails, called Dullegil Trail in Korea, have become more important. This study estimated the environmental value of the tentatively named "East-West Trail," which connects the forest trails crossing Chungcheong and Gyeongsang Provinces using CVM (Contingent Valuation Method). It surveyed visitors to the East-West Trail, and 725 questionnaires were used for analysis. The average characteristics of respondents were those who exercised 2-3 times per week, visited a forest trail not far from their residence with friends or family, and showed a tendency to spend 50 thousand Korean won or more per visit. Visitors to the Dullegil Trail felt that there was a shortage of information boards on the forest trail, and they preferred a shelter in appropriate locations. We used a double-bounded dichotomous choice (BDDC) logit model proposed by Hanemann to measure the conservation value of the East-West Trail. It was estimated that the environmental value that a visitor to the East-West Trail could obtain was 30,087 won per trip. The estimated environmental value of the East-West Trail can be converted to about 94 billion won total visitors annually based on the population belonging to the direct-use zone near the East-West Trail. As there has been no study on the environmental value of forest trails using CVM, the results of this study will be able to suggest the feasibility of the government policies on forest trails.