• Environmental and Resource Economics Review
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• v.26 no.4
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• pp.549-575
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• 2017

Recently, power mix of Korea is planned to be changed from coal-fired and nuclear to gas-combined and renewables by the energy policy of new government. This change will also affect city-gas industry. This paper analyze the economic impact of city-gas industry by scenario that switching coal-fired and nuclear power generation into gas-combined and fuel cell. 2030 input-output table is estimated to take the transfer period into account. As results, the induced impact by city-gas industry to the others was negative when switching into gas-combined while that was positive when switching into fuel cell. This results imply that the gas-fired can be a feasible alternative for short-run but fuel cell is more helpful for our economy in long-run.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.22 no.6
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• pp.66-76
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• 2023

The government recently implemented policies to improve transportation for the disabled passengers. On the other hand, metropolitan public transport still lacks adequate services for these individuals. Many new cities lack urban rail lines and focus on high-floor buses for expansion. Wheelchair users can only access to double-decker low-floor seat express buses for intercity travel. This study examined the necessity and rationale for introducing low-floor seat buses by estimating the user's willingness to pay through a contingent valuation method. Two methods for eliciting the willingness to pay were adopted: open-ended and dichotomous choice questions. The binomial logit model was used to estimate the willingness to pay. The results indicated that the general public is willing to pay an additional 126.7 Korean won, while the disabled passengers are willing to pay an additional 117.5 Korean won. When translated into annual economic benefits, this amounts to approximately 35 billion Korean won.

• Environmental and Resource Economics Review
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• v.18 no.3
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• pp.431-455
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• 2009

This study estimates the WTP for the plan of solving deforestation due to limestone mining and calculates that damage cost using contingent valuation method. As the results of analysing a dichotomous choice CV data, the yearly mean WTP per household for the plan is 5,045 won(95% confidence interval : 3,729~6,360 won) in single bounded CV model and is 4,361 won(95% confidence interval : 3,710~5,012 won) in double bounded CV model. The damage cost of deforestation due to limestone mining can be estimated as 55.3% of WTP for the plan which is assigned to restoring the deforestation area to the original or similar alternative state. The average yearly deforestation cost of 1 ha due to limestone mining is reached 20.90 million won(95% confidence interval : 16.53~25.27 million won). And the asset value of that 1 ha damage is 160.02 million won(95% confidence interval : 126.56~193.49 million won). The fact is found that the damage cost of deforestation using replacement cost method is likely to be underestimated. The total damage cost of deforestation because of limestone mining in 3 cities (Donghae, Samcheok, Yeongwol) is 204.0 billion won(95% confidence interval : 161.4~246.7 billion won) which is composed of 26.5% for Donghae, 28.9% for Samcheok, and 44.6% for Yeongwol according to the damage size of deforestation due to limestone mining in 3 cities.

• Journal of the Korean Regional Science Association
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• v.33 no.3
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• pp.49-59
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• 2017

The piezoelectric energy harvester is recently being developed and catching on as a way to achieve low carbon green growth. The practical application of the piezoelectric energy harvester is expected to contribute not only to the reduction of greenhouse gas emissions but also to the improvement of residents' welfare. This paper conducted a cost-benefit analysis for the installation of piezoelectric energy harvester on the highway focusing on its impacts on the public. The results showed that the installation of piezoelectric energy harvester on the gyeongbu highway is economically feasible in that it could increase the social welfare for the residents. Finally, this paper suggests policy direction for the practical use of the piezoelectric energy harvester, based on the results obtained.

• Journal of the Korean Institute of Landscape Architecture
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• v.42 no.2
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• pp.19-32
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• 2014

This study evaluated economic value recognized by the residents for the pleasant urban park management using contingent valuation method(CVM) to APEC Memorial Park in Pusan in terms of private fund development for the management of the city park. As a result, the estimated amount payable by each household for the management of APEC Memorial Park in Busan was between 5,673 won and 8,358 won. If such amount is expanded to households in park hosting area, it was 2.2~2.3 times of the park management budget in 2012, which demonstrates the willingness to pay (WTP) of residents for pleasant park was higher than the management budget. Social factors of respondents affecting WTP for city park management operation included age, educational level and income level. Those with high age and high education level had higher WTP. And, WTP was much affected by the use of park and recognition of residents. In particular, those with high frequency in the use of parks had higher WTP, and the users with more than once per week had 1.1 times higher WTP than overall WTP. Then, the satisfaction of park rather than recognition of necessity of park had led to higher WTP. Accordingly, it is necessary to manage park facility management and use program operation to enhance park satisfaction and it is also required to develop a park culture distribution policy to link such recognition to donation.

• Journal of Korea Port Economic Association
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• v.28 no.3
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• pp.235-257
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• 2012

Recently the role of ports has been changed to satisfy flexibly needs of demands in global economy. A new concept for ports is not just a place for international trade but an important nodal point in logistics chain. The changing environment like this trend creates a high degree of uncertainty and leaves port managers confused with the question how to respond effectively to dynamic market. The latest studies provide that the port must have a good hinterland to achieve competitive advantages in a logistics chain. Korean Government announced "The Master Development Plan for Port Logistics Parks in Korea" in 2006. This contains the plan of hinterland construction of Busan New Port to achieve the status of logistics hub in Asian market. Previous studies rely solely on traditional DCF(discounted cash flow) analysis for investment of hinterland. However DCF method does not include irreversibility, uncertainty and the choice of timing for investment project. This thesis introduces a ROPM(real options pricing model) which overcomes the limitations of traditional valuation methods. The option valuations in this study utilize the Black-Scholes model, the binomial model and the MonteCarlo simulation to value investment opportunity of a port hinterland. In this thesis, an attempt is made to modify the NPV criterion by incorporating the real options approach, and its application is demonstrated in a hinterland construction investment plan. This research has conducted an empirical analysis by calculating economic value of the investment for a hinterland of Busan New Port.

• Journal of the Korean Data and Information Science Society
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• v.23 no.5
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• pp.913-925
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• 2012

This study evaluates the economic benefit of the project constructing the international riding arena having been built at Sangju in Gyeongsangbuk-Do by the willingness to pay (WTP) of residents in the province. As the evaluation method, the dichotomous choice contingent valuation method (CVM) is adopted with the additional questions of whether his/her WTP is zero, to improve the statistical accuracy of evaluation results. Considering the arena's administrative location, the population of the surveys for analysis is confined to residents of Daegu and Gyeongsangbuk-do. The survey is conducted through personal interviews. It turns out that the WTP per household per year is evaluated as 1,847 won and the total yearly benefit of the Sangju international horse riding arena is estimated as 3.56 billion won.

• Journal of Korean Society of Forest Science
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• v.99 no.6
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• pp.891-899
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• 2010

The purpose of this study is to estimate economic value of forest landscape function using conditional logit model, applied by Choice Experiment. For the study, we have chosen attributes and levels of forest landscape. In specific, topographical forest type, forest type, forest density, recreational factor (side trip, accessibility of valley) and WTP were included in attributes. Based on factors, we have made 48 choice sets with Balanced and Orthogonal form using SAS 9.1. The efficiency of questionnaire was 6.02 (D-Error: 0.1) and choice set and socio-economic variable were selected. In order to reduce cognitive load of respondent, 96 choice sets were divided into 4 types in questionnaire so that respondent could respond to 12 choice sets respectively. Population was citizens from 7 metropolitan cities including Seoul, and the interview survey was conducted to find out average annual WTP per household for the total 280 interviewees. As a result, In the Non-ASC model, Mcfadden' ${\rho}$ had 0.21, and Log Likelihood: -2,631. Average annual WTP per household for forest landscape was 266,723 Won(Korean currency).

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.7B
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• pp.734-743
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• 2009

This paper is to analyze the economic effects of the broadcasting & communications convergence public service platform build-up. For the economic effect analysis, we reclassified the Broadcasting & Communications Convergence Industry Classification System and re-drew up 2009 Inter-industry Relations Table by using the 2003 Inter-industry Relations Table issued by the Bank of Korea and the RAS techniques. And we analyzed the economic effects that can be drawn from the broadcasting & communications convergence public service platform establishment. As a result, the gross production inductive effect which appears with the economic effect of the broadcasting & communications convergence public service platform establishment project from 2009 to 2014 came out to be about 3trillion 325.1 billion KW, added value inductive effect of 2trillion 976.5billion KW and the employment inductive effect of the job creation of about 13,806 people. Afterward, it is anticipated that the broadcasting & communications convergence public service platform build-up project to contribute to the improvement of Koreans' daily life. Moreover, this research will be used as a valued basic material in the pursuit of the future broadcasting & communications convergence projects.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2012.05a
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• pp.3-3
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• 2012

자원식물은 인간의 천연물에 대한 관심 고조와 미래 생물자원으로서의 경제적 가치가 재인식되어 미국을 비롯한 선진국은 오래전부터 유용한 식물자원 보존과 이를 이용한 산업화에 정부가 앞장서 추진하고 있다. 더욱이 우리나라는 국토면적에 비해 많은 식물종이 분포하고 뚜렷한 4계절과 다양한 토양특성으로 우수한 기능성식물자원이 많으며 이들 식물자원의 이용과 효능에 대한 풍부한 지식이 전통적으로 이어져 왔다. 그럼에도 불구하고 우수한 자원식물에 대한 보존과 이용이 과학화 체계화되지 못하여 세계적인 품종이나 제품개발은 미흡한 실정이다. 그동안 우리나라는 토종자원에 대한 관심과 꾸준한 연구개발로 농촌진흥청 보존 농업유전자원은 세계 6위 수준('10년말 291천점) 이며, 멀티기능 유용물질 함유 작물 개발 및 실용화 기술수준도 기술력 지수 세계7위로 높게 평가되고 있다. 그러나 이들 자원식물로부터 유용물질을 이용하여 세계시장을 선도하는 천연물신약, 건강기능성식품, 한방화장품, 천연 색소 및 향료 등의 제품개발은 미흡하여 앞으로 유망 자원식물을 이용한 체계적이고 과학적인 고부가 산업 육성을 위한 집중적인 투자가 필요한 시점이다. 자원식물을 이용한 천연물 신약개발은 고부가가치 제품과 산업재산권 확보가 가능하므로 수입 대체와 기술 및 제품수출이 충분히 이루어질 수 있다고 보여 현재 연구개발 중인 신약후보 도출 및 임상개발 과제의 수요를 반영한 후 단계별 대규모 신약개발 노력이 필요하다 하겠다. 건강기능 식품 개발은 고령사회 진입과 노령인구 증가로 노화억제 및 고령자 건강유지용 식품비중이 지속적으로 높아질 것으로 추정되어 약용식물을 소재로 개인 맞춤형 나노바이오 건강기능성 식품 개발을 통한 다양한 제품개발이 요구된다. 또한 우리나라 화장품분야의 전반적인 기술수준은 세계최고 기술의 62% 수준이나 화장품 소재의 자원식물 발굴과 나노기술 접목을 통한 효능의 극대화는 소비자의 웰빙 트랜드와 외국화장품과의 차별화 전략에 맞물려 국내 한방화장품의 세계화가 가능한 품목 중 하나이다. 식용 및 염색용 색소도 자원식물이 풍부하고 천연색소 시장이 크게 확장되고 있어 자원식물 중 경제성과 기술적 개발 가능성을 고려하여 단계적인 개발이 요구된다. 특히, 우리의 식물자원, 전통지식, 과학기술이 통합되어 효능을 현저하게 상승시키는 천연물신약, 건강보조식품, 화장품 등이 개발된다면 세계시장을 선도할 날도 멀지 않을 것으로 기대한다.