• 디자인융복합연구
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• 제16권3호
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• pp.17-37
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• 2017

본 연구는 고령친화용품 체험공간의 확대 설치를 위한 근거를 파악하기 위해 체험공간에 대한 경험유무에 따른 가상가치를 평가하였다. 추정방법은 고령자 152명을 대상으로 조건부 가치측정 방법인 이중경계형(double-bounded dichotomous choice) 로그로짓모형(log-logistic model)과 로그노말모형(log-normal model)을 적용하였다. 추정결과, 로그로짓모형의 절단평균은 3,401원, 평균은 4,937원으로, 로그노말모형은 절단평균이 3,433원, 평균은 4,144원으로 나타났다. 체험공간이 삶의 질과 산업육성을 위해 필요성이 높음에도 지불의사에 대한 부정적 답변이 많았으며 체험공간의 미경험자가 가치를 상대적으로 높게 평가하였다. 체험공간 추가설치의 문제는 체험공간에 대한 가치평가의 제고뿐만 아니라 복합 기능의 도입, 다양한 고령친화용품 구비, 개인맞춤형 지원, 나아가 접근 편의성과 서비스 수준을 제고해야 할 필요성을 보여주었다.

• 한국조경학회지
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• 제34권5호
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• pp.84-99
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• 2006

The traditional temples located in national parks have various functions, such as religious practice, tourist destination, and conservation for cultural and natural resources. One functions have implicit monetary values in terms of public benefits. The purpose of this study was to estimate both use and non-use conservation values for two traditional temples, Sinheungsa and Haeinsa, using the contingent valuation method. In the study, both single-bounded and double-bounded dichotomous choice methods were used in an application of Turnbull distribution-free model. A total of 659 visitors were interviewed, 350 in Sinheungsa and 309 in Haeinsa. The mean WTP (willingness to pay) for Sinheungsa using single-bounded method was 4,040 Won for the use value, 6,157 Won for the cultural conservation value, and 5,624 Won for the natural conservation value. The mean WTP for Haeinsa using single-bounded method was 6,463 Won for the use value, 8,769 Won for the cultural conservation value, and 8,013 Won for the natural conservation value. The total economic value of each temple accounted for 50% (Sinheungsa) and 80% (Haeinsa) of the total economic value of the associated national park. It was also found that the single-bounded method was more conservative than the double-bounded method in terms of value estimation. The WTP was highest for the cultural conservation value and lowest for the use values in both temples, with natural conservation values falling in the middle, which showed that people perceived traditional temples as the cultural heritage. Based on these results, it was suggested that traditional temples should be designated as an 'multiple heritage area' so that conservation can be used as the main criteria for various use programs.

• 정보보호학회논문지
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• 제24권4호
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• pp.695-703
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• 2014

본 논문은 정보재화로서 개인정보의 특징과 개인정보에 대한 경제적 고찰을 통해 개인정보 침해의 부정적 효과를 방지하기 위한 지불의사 비용, 즉 Willingness To Pay(WTP)를 분석하였다. 개인정보 보호를 위한 지불의사비용 결정요인에 대한 학술적 연구는 아직 미흡한 현실이다. 따라서 본 논문에서는 개인정보 보호를 위한 지불의사비용에 영향을 미치는 요인을 이중양분선택법(double-bounded dichotomous choice)에 근거하여 개인정보 침해를 예방하기 위한 비용을 결정하는 요인을 찾고자 하였다.

• 농업과학연구
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• 제48권2호
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• pp.219-230
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• 2021

In Korea, the industry and marketing of livestock has grown because of increases in consumers' income and changes in food consumption trends. Livestock production and consumption increased tenfold from 1970 to 2018, and this rise will continue. However, the quality of marketing information for Korean livestock has remained low. The Korea Institute for Animal Products Quality Evaluation (KAPE) operates programs that provide marketing information on livestock, but the social benefits of these programs have not been objectively evaluated. The purpose of this study was to estimate the social benefit of the programs offering marketing information on Korean livestock. Survey and analysis using an economic model (double-bounded dichotomous choice contingent valuation model), revealed a few findings. First, the users of the marketing information programs offered by KAPE recognized the value of these programs and demonstrated their willingness to pay for this marketing information. Second, the social values of the programs offering marketing information on livestock were estimated as 1.1 billion won (marketing information on main livestock) or 5.3 billion won (price information on poultry), and these social values were 2 or 6 times greater than the cost to operate the programs for offering information. Finally, the program that provides marketing information on domestic livestock provides sufficient social benefits, so KAPE should expand these programs.

• 한국조경학회지
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• 제26권3호
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• pp.90-103
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• 1998

The purposes of this study are to estimate the economic value and reasonable entrance fee of the Yeido Park, which is under construction in Seoul, by conduct the face-to-face interview. A total of 645 daults were selected by two stage cluster sampling. The senario was designed to meet the requirements for doubgle-bounded dichotomous choice CVM, and distributed with the photograph to epict and compare the current and suggested conditions. A donation vehicle and entrance fee were utilized to find the possibility of strategic behaviors and protest zero, and to make the data estimatable tfor interval censored survival analysis. Date was calibrated by the survival analysis to eleminate the 'fat-tail problem'. Weibull distribution was assumed as a baseline distrubution. The mean WTP of donation and entrance fee was ￦5,281 and ￦783, respectively. The economic value of this park was determined by aggregating the mean value, giving a total WTP for the population of ￦36,861,645,000. This economic value was composed with the use value and existence value. The calibrationi of the Weibull proportional hazard model showed that nearness to the park, age, intention to isit the park, and educational attainment were significant independent variable to influence an amount of donation.

• 수산경영론집
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• 제49권3호
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• pp.85-99
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• 2018

This study is to compare and evaluate the estimating method of WTP(willingness to pay) for the valuation of oceans and fisheries resources with non-market goods characteristics using contingent valuation method. In general, when estimating parameters of the WTP function, we should take into account the assumption of probability distribution, inclusion of covariates, method of inducement of payment, and the treatment of 0 payment intention and resistance responses. This study utilizes survey data that was used to estimate the value of fisheries resource protection zones, with a total of 1,200 samples. The main results of this study are summarized as follows: First, the final willness to pay amount is estimated at a statistical significance of less than 1 percent, and the distribution of the final willness to pay amount is from \6,926 of the double bounded dichotomous model to \10,721 of the spike model. Second, the willness to pay amount based on assumptions about the normal and logistic probability distributions are estimated to be \9,429 and \9,370 respectively, so there was no significant difference. Third, the willness to pay amount of the single bounded dichotomous model and the double bounded dichotomous model are estimated to be \8,951 and \6,926 respectively, making a relatively large difference. Fourth, the willness to pay amount of the model without covariates and the model with covariates are estimated to be \9,429 and \8,951, respectively, so the willness to pay amount is underestimated when the covariates are included. Fifth, the Spike model that considers zero payment intention and resistance response estimates \10,405 as the highest payment in this study. Finally, the CVM analysis guidelines proposed by the Korea Development Institute (KDI) are estimated to be \9,749 and \10,405 respectively, depending on including no covariates and with covariates. Compared to other models, the final willness to pay amount is not estimated underestimated. Therefore this study suggests the use of KDI's guidance under government public policy projects. In view of these results, the estimating model for willness to pay amount model will be selected by considering the sample size, the suitability of the model, the sign of the estimated coefficient, the statistical significance, the ratio of the zero payment intention and the payment rejection. And, for CVMs on government public policy projects, it is desirable to estimate by the method proposed by the KDI.

• 한국도로학회논문집
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• 제15권4호
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• pp.155-165
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• 2013

PURPOSES : Benefits for improvement of travel time reliability obtained from construction of new highways should be considered as a major factor in the feasibility study for highway constructions. The purpose of this study is to develop a method of estimation for the value of travel time reliability. METHODS : Highway type (urban/rural highway) and traffic flow type(interrupted/uninterrupted) was considered to estimate he value of travel time reliability. And Double-bounded Dichotomous Choice among Contingent Valuation Method(CVM) was applied to survey the willingness-to-pay of drivers when travel time reliability is improved. Finally the value of travel time reliability was estimated using the results of survey and logit model. The value of travel time reliability was estimated considering travel objectives, time constraint travel and non-time constraint travel. RESULTS: The value of travel time reliability of business trip is higher than that of non-business trip. The value of travel time reliability of time constraint travel is higher than that of non-time constraint travel. The value of travel time reliability in urban area is higher than that in rural area. CONCLUSIONS: It was concluded that the proposed method in this study is more realistic and proper to estimate the value of travel time reliability because it reflects the situations of time constraint travel and non-time constraint travel.

• Ocean and Polar Research
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• 제34권2호
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• pp.175-183
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• 2012

A project to build a large oceanographic research ship was proposed to improve the level of ocean research. This paper attempts to measure the non-market benefits of the project. To this end, the dichotomous choice contingent valuation method is used. In particular, the recently proposed one and one-half bounded model is applied. The model can reduce the potential for response bias compared to the double bounded model, while maintaining much of its efficiency. Moreover, in order to deal with zero WTP observations, a spike model is adjusted for our data. A survey of 500 randomly selected households was implemented in the Metropolitan area. The respondents were asked in person-to-person interviews about how they would be willing to pay for implementing the project. Overall, respondents accepted the contingent market, and were willing to contribute a significant amount (3,244 won), on average, per household per year. The aggregate value of the project nationwide would amount to approximately 40.1 billion won per year.

• 환경정책연구
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• 제6권1호
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• pp.83-109
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• 2007

본 연구는 이중양분선택형 조건부가치측정 법을 이용하여 태화강 수질개선의 편익에 대한 울산시민의 지불의사를 계량화하였다. 이변량 프로빗 모형으로 추정한 태화강 수질개선의 편익은 가구당 월평균 3,458.5원(표준편차 1,553.4원)으로 추정되어 울산광역시 전체로는 연평균 147.6억 원(140.4억 원$\sim$155.5억 원)에 이른다. 이러한 추정치는 태화강 수질을 개선하지 않을 경우의 수질오염으로 인한 사회적 비용 또는 수질개선에 의한 사회적 편익에 해당한다. 본 연구는 태화강 수질개선의 사회적 편익을 화폐가치로 추정함으로써 다양한 태화강 수질 개선사업의 타당성 검정을 위한 비용편익분석의 기초 자료로 활용될 수 있을 것이다. 또한 방법론적 측면에서 표본선택모형을 이용하여 이중양분선택형 설문을 이용한 조건부가치측정법에서 발생 가능한 두 응답 간 상호의존성 유무를 검정하였으며, 본 연구에서 사용한 자료에서는 지속성 가설, 정박가설, 비용기대가설, 긍정응답가설, 프레임가설 등 모든 종류의 두 응답 간 상호의존성이 통계적으로는 유의하지 않은 것으로 나타났다.

• 지적과 국토정보
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• 제49권2호
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• pp.23-38
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• 2019

국토센서스 사업은 지목불일치 문제를 해결하고 실제 토지이용을 반영할 수 있도록 전국의 토지를 정기적으로 직접 조사하는 작업이다. 그에 따라 본 연구는 국토센서스 사업뿐만 아니라 관련된 토지·주택조사가 투입된 예산 대비 실제로 사회적 후생의 증대를 가져오는지 검토하고, 사업의 타당성을 점검하고자 하였다. 국토센서스 사업의 경제적 가치는 조건부 가치 추정법의 단일경계모형과 이중양분선택법을 동시에 활용하여 지적체계 개선 사업의 타당성을 추정하고자 하였다. 단일경계모형과 이중양분선택법에 의한 편익 가운데, 보수적인 결과가 나온 단일경계모형으로도 본 사업의 비용편익비율은 1을 상회한다. 향후 이 사업의 추진 과정에서 예상보다 비용이 증가하거나, 지금 본 연구에서 상정한 것과 달리 현실에서는 편익이 적게 나올 수도 있다. 미래의 사업추진에는 현재 우리가 모두 알기 힘든 불확실성이 있기 때문이다. 그러한 불확실성에 대해서는 앞으로 현명하게 대처하고, 비효율성을 통제하기 위한 진지한 노력이 필요하다.