• 수산경영론집
• /
• 제47권3호
• /
• pp.35-52
• /
• 2016

This paper analyzed economic feasibility of aquacultural construction which of large-scale. The results of the economic analysis, cage cultural and water recycling cultural by post-water treatment were analyzed that NPV is 2,083,685 thousand won and -14,105,896 thousand won and B/C ratio is 0.590 and 0.855, respectively. These were shown economic infeasibility. But, running water culture by pre-water treatment(small scale) and running water culture by pre-water treatment(large scale) were analyzed that the one is 5,555,747 thousand won and 15,048,589 thousand won and the other is 1,154 and 1,1221, respectively. these were shown economic feasibility. In addition, measurement of B/C ratio through a sensitivity analysis on running water cultural by pre-water treatment(small scale) and running water cultural by pre-water treatment(large scale) is economic feasibility in all cases. However, these were analyzed when the selling price was falling to 20 percent, it has shown economic infeasibility and when the selling price rises to 20 percent, water recycling culture by post-water treatment has economic feasibility. The significance of the study analyzed a sensibility as well as economic feasibility by methods and scales. It is expected that used as basic materials when constructing and operating of land aquaculture in order to minimize the damage from natural disasters.

• 수산경영론집
• /
• 제51권3호
• /
• pp.17-31
• /
• 2020

The purpose of this study is to identify economic situation on scale of tuna distant longline fishery by analyzing its economies of scale using the cost function. To analyze its economics of scale, the deep-sea fishing statistics were used from 2012 to 2016. In detail, the number of panels for estimating the cost function was 68 tuna distant longline vessels from 2012 to 2016, and the total number of observations over the five years were 340. As a final model, the two-way fixed effect model based on the translog cost function was adopted through the F test, the Breusch-Pagan test and the Hausman test. As a result of the analysis, it was found that tuna distant longline fishery between 2012 and 2014 was diseconomies of scale, the fishery between 2015 and 2016 was economies of scale. However, the economic indicators of the scale from 2012 to 2016 were almost close to zero, indicating that the constant returns to scale, the optimal scale, were reached. Therefore, in the situation where the amount of fishery resources in the world continues to decrease, it is necessary to prepare a method to obtain economic benefits through scale maintenance and reduction rather than indiscriminate scale expansion.

• 방사선산업학회지
• /
• 제5권3호
• /
• pp.191-196
• /
• 2011

The economic scale of nuclear application is a good indicator to show how the radiation technology is useful and contribute to improve public welfare and living standard. Recent research in Japan shows that the economic scale of nuclear field was 4,112 B¥ for radiation application(46%) and 4,741 B¥ for nuclear energy (54%) playing a role of "two wheels of one cart" in nuclear field and the total 8,853 B¥ constitutes 1.8% of gross domestic products (GDP). The radiation application consisted of 2,295 B¥ (56%) in industry (semiconductor, sterilization, nondestructive testing, radiation processing of tires, etc.), 1,538 B¥ (37%) in medicine (therapy and diagnosis such as X-ray, nuclear medicine, computed tomography, etc.) and 279 B¥ (7%) in agriculture (mutation breeding, food irradiation, sterile insect technique, etc.). Radiation application by ${\gamma}$-ray, electron beam and ion beam is steadily increasing in Japan.

• 환경영향평가
• /
• 제13권4호
• /
• pp.165-185
• /
• 2004

Assessment in Socio-economic items should be used to estimate social influence when policies and projects were introduced. To estimate current situation of socio-economic items 19 Environmental Impact Statement (EIS) of large scale projects were analyzed. The projects were selected based on magnitude of social impact when the projects were implemented. Environmental Impact Statement was categorized into line projects(road construction, railroad construction, stream development, etc), and surface projects(energy development, wetland reclamation, recreation and sport development, and housing and residential development, etc) thus being chosen for 19 projects in each categories. This report was based on the analysis of 7 items in socio-economic environmental items(i.e., population, residents, industry, public facilities, education, transport and historical monument). Most EIS did not follow the regulation suggested by Ministry of Environment, and only current circumstances were briefly described. Indifference of in-depth analysis of socioeconomic environmental items would influence the process of social and environment impact negatively in the midst of construction of National Projects such as Outer Circle Seoul Highways, Saemankeum Reclamation Projects, etc. This abrupt halt of construction was mostly based on a lack of public hearing or public participation. Socio-economic items are also very much lacking in quantitative method and strengthening socio-economic environmental items is needed via checklist or matrix that brings decision-makers better ideas objectively.

• KDI Journal of Economic Policy
• /
• 제43권4호
• /
• pp.23-44
• /
• 2021

This research attempts to provide an in-depth analysis of the public perceptions of inter-Korean economic cooperation. KDI survey data with a sample size of 1,000 were subjected to empirical analyses. By means of ordered logit estimations, we derive the following results. First, there is a significant effect of age on economic cooperation perceptions, where younger generations tend to be more negative. Second, the group who has positive view on the economic cooperation tends to prefer large-scale, domestic-entity-funded cooperation projects, whereas the group who has negative view tends to prefer small-scale projects and projects funded by international organizations. According to these results, prioritizing trade with the involvement of international organizations is likely to be an effective measure to alleviate potential political constraints and to achieve sustainable long-run economic cooperation systems when pursuing the economic cooperation.

• 한국유기농업학회지
• /
• 제23권4호
• /
• pp.615-641
• /
• 2015

This study analyzes an economic efficiencies of apples, pears, and grapes farming. We evaluate an annual economic overall efficiency (OE), allocative efficiency (AE), technology efficiency (TE), pure technology efficiency (PTE), and scale efficiency (SE) using data envelopment analysis (DEA). We also measure returns to scale of farms, and the change of technical efficiency of frontier farms. Lastly we estimate the effects of some explanatory variables on allocative, pure technical, and scale efficiencies.

• 한국유기농업학회지
• /
• 제25권4호
• /
• pp.679-697
• /
• 2017

This study analyzes an economic efficiency of environmental friendly farm and conventional farm using the data envelopment analysis (DEA). We compare the economic efficiency of Environmental Friendly farm and Conventional farm. We also analyze the effects of some explanatory variables on allocative efficiency (AE), pure technology efficiency (PTE) and scale efficiency (SE). In the case of strawberries farm, environmental friendly farm has higher overall efficiency (OE) than conventional farm. But tomatoes farm has higher overall efficiency (OE) than conventional farm. And We measure returns to scale of farms. Most strawberries and tomatoes farms showed Increasing to Scale (IRS).

• 한국신재생에너지학회:학술대회논문집
• /
• 한국신재생에너지학회 2011년도 춘계학술대회 초록집
• /
• pp.139.2-139.2
• /
• 2011

Compared with a traditional power system of electricity providers, distributed power systems consist of power suppliers which are small and demand-oriented. Each small power supplier tends to utilizes renewable energy sources such as solar and wind power. It is because that home renewable energy systems do not need a large scale infrastructure which is required for traditional power plants. In this work we study an economic feasibility of such a renewable energy source. We describe how renewable power generation works and what it brings in terms of economic benefits. Also, we analyze limitations by the current policy and their possible solutions.

• 벤처창업연구
• /
• 제16권5호
• /
• pp.1-14
• /
• 2021

전 세계적으로 혁신과 창업기업의 스케일업이 중요한 국가적 과제로 부각되고 있다. 과거 경기침체 극복을 위해 'Start-tup America', 'Start-up Chile', 'Start-up Britain' 등 스타트업 중심의 정책 패러다임을 확산시켰다. 최근 창업선진국을 중심으로 경기회복이 가시화되면서, 스타트업 중심의 정책 패러다임이 'Scale-up America', Scale-up UK', 'Scale-up Denmark' 등 스케일업 중심의 정책 패러다임으로 전환하고 있는 추세이다. 창업기업은 스타트업 단계를 넘어서 스케일업 단계로 진입해야 국가적으로 양질의 일자리가 늘어나고 경제성장으로 나아갈 수 있다. 그러므로 창업기업을 강한 중견기업으로 성장시켜 지속적으로 생존할 수 있는 발판을 마련해주어야 한다. 이에 따라 본 연구는 창업기업이 스케일업 기업으로 성장할 수 있도록 성장의 선행변수인 성장 열망에 영향을 미치는 요인들을 심층적으로 고찰하고 국가의 경제발전단계 간, 기업가 간의 차이를 실증적으로 규명함으로써 국가차원에서 창업기업이 스케일업 할 수 있는 방안을 제시하는데 목적이 있다. 본 연구는 글로벌기업가정신모니터(GEM)의 일반성인조사 3.5년 미만의 초기 기업가들을 대상으로 하였으며, 국가경제발전단계를 혁신주도형, 효율주도형, 요소주도형 경제로 구분하여 R 3.5.0프로그램을 사용하여 국가경제발전단계 간 비교를 위해 다층모형분석을 통해 연구가설을 검증하였다. 가설검증 결과는 다음과 같다. 창업기업의 혁신지향성과 성장 열망의 영향관계에 있어 국가경제발전 간, 기업가 간 차이가 있는 것으로 나타났다. 국가의 경제가 발전할수록 기업가의 혁신활동이 더 두드러지게 나타난다. 또한 창업기업은 기업가의 영향을 많이 받기 때문에, 동일한 환경 내에서 기업가가 얼마나 혁신 지향적인가에 따라 열망의 정도에 차이가 있다고 할 수 있다. 창업기업의 혁신지향성과 성장 열망의 영향관계에 있어 실패에 대한 두려움은 국가경제발전 간, 기업가 간 차이가 있는 것으로 나타났다. 기업가 및 창업에 대한 실패에 대한 두려움은 국가경제발전 단계별로 차이가 있으며, 이러한 국가적 측면에서 실패에 대한 인식은 창업활동에 영향을 미치는 중요한 요인 중 하나이다. 이러한 연구결과를 통해 규명된 창업기업이 스케일업 기업으로 성장하는데 있어 성장열망에 영향을 미치는 검증된 요인을 국가경제발전단계에 따라 적합한 스케일업 생태계를 조성하는데 활용할 수 있을 것으로 기대한다.

• Ocean and Polar Research
• /
• 제28권1호
• /
• pp.25-35
• /
• 2006

Fisheries buyback programs have been implemented from 1994 in Korea, and its scale is estimated to have a value of 930 billion won, which is compounded for eight years since 1994. The paper evaluates the programs' economic and financial viability, and predicts efficient ways about how much and how long to reduce fisheries vessels so as to pursue a target biomass at MSY, For the specific purpose of the paper, aggregate fisheries stock dynamics and catch functions are specified and estimated by yearly catch and fishing effort data from 1970 to 2001, using ASPIC model and Schaefer's logistic production model. Results show that the fisheries stock in Korea has steadily declined since 1970, and that Korean fisheries overexploitation has steadily increased. Using cost-benefit analysis method, the buyback program holds the economic and financial feasibility even if the scale of buyback programs is not sufficient to avoid the downward trend in fisheries stock and harvest. The potential investment scale is predicted in several alternative scenarios using the sensitivity analysis method. The results recommend the annual reduction of 46%, 12% or 20% for the next one year, five years or three years, respectively so that the target biomass at MSY may be reached in 25 years.