• 한국유기농업학회지
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• 제9권4호
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• pp.27-54
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• 2001

This paper aims to provide a basic framework to make a regional plan for the environment-friendly agriculture. To prepare the regional plan is mandated by the Environment-friendly Agriculture Promotion Act of 1998. Here is proposed the input/output analysis framework, which includes the shifts of fertilizers, herbicides, pesticides, and livestock manures Basically, the discharged amount of polluted elements means the difference between the amount of the elements entered into the crop and livestock sectors and the amount of the elements absorbed or used by the crop and/or livestock. A few suggestions are offered for better regional environment-friendly agricultural plan. The foremost important thing is to establish a data collection system. The \"Green Accounting System\" is suggested. It is also crucial to create a standard guideline or manual which Provides detailed procedures to follow in making the plan by the local planners. More fundamentally, many experts on the regional planning will be demanded in the near future. Some compound model which links, for instance, the forestry, the livestock sector, and the crop sector, needs to be devised. Finally, it is argued here that more elaborated model will work as an integrated environmental improvement plan which embraces living environment as well as agricultural environment.vironment.

• 한국수자원학회논문집
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• 제33권5호
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• pp.647-658
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• 2000

본 연구에서는 공급측면 산업연관분석모형을 사용하여 물공급지장이 끼치는 산업의 전방효과를 분석하고자 하였다. 여기서 분석된 공급지장비용은 수도사업의 신뢰도 결정에 사용될수 있으며 물의 공급부족이 발생할 경우 물의 효율적 배분을 위한 정책적 기초를 제공할 수 있다. 따라서 산업연관분석을 이용하여 수도부문이 차지하는 국민경제적 위치를 확인하고 공급지장으로 인한 산업간 직·간접 피해를 분석하였다. 또한 가뭄시 중요한 공급우선 순위 결정을 위한 공급지장지수를 제안하였다. 한편 가뭄의 발생은 지역적인 특성을 가지고 있어서 전국산업연관표를 이용한 지역수준의 공급지장비용이 과대 도는 과소평가될 여지가 있다. 따라서 경남지역산업연관표를 통해 산정한 공급지장비용을 전국산업관표와 비교·분석하였다.

• 열린충남
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• 통권39호
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• pp.126-143
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• 2007

This study evaluates the economic impacts of regional festivals and cultural events by utilizing regional input-output models of Seosan and Chungnam, which are derived by using a location-quotient approach. Tourism industry has modest forward and backward linkages with other industries, but its impacts on regional income and employment are much larger than other industries including manufacturing industry. Strong impacts on income and employment seem to provide rational for promoting tourism industry in Seosan and Chungnam. The Seosan Migratory Bird Festival increased city outputs approximately by 3929 million Won, increased employment by 56 people, and increased total income of the province by 774 million Won. All of the economic impacts were mostly concentrated in service related industries,

• 한국경영과학회지
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• 제37권1호
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• pp.29-43
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• 2012

We design a DEA-AR model using multiple regression analysis with new methods which limit weights. When there are multiple input and single output variables, our model can be used, and the weights of input variables use the regression coefficient and coefficient of determination. To verify the effectiveness of the new model, we evaluate the efficiency of the Regional Corporations in Korea. Accordance with statistical analysis, it proved that there is no difference between the efficiency value of the DEA-AR using AHP and our DEA-AR model. Our model can be applied to a lot of research by substituting DEA-AR model relying on AHP in the future.

• The Journal of Asian Finance, Economics and Business
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• 제10권2호
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• pp.183-193
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• 2023

This paper proposes and examines the economic impact of infrastructure improvement on the San-En-Nanshin region in the Chubu area of Japan. We develop a single transportation computable general equilibrium (CGE) model for each subregion within the San-En-Nanshin region. The explicit modeling of the transportation infrastructure is defined based on interregional commuting flows and business trips, considering the spatial structure of the San-En-Nanshin economy. A CGE model is integrated with an interregional transportation network model to enhance the framework's potential for understanding the infrastructure's role in regional development. To evaluate the economic impact of transportation improvement, we analyze the interrelationship between travel time savings and regional output and income. The economic impact analysis under the CGE framework reveals how transportation facilities and systems affect firm and household behavior and therefore induce changes in the production and consumption of commodities and transportation services. The proposed theoretical model was tested by using data from the 2005 IO tables of each subregion and the 2006 transport flow dataset issued by the Ministry of Land, Infrastructure, Transport, and Tourism in Japan. As a result, the paper confirms the positive effect of transportation investment on the total output and income of the studied region. Specifically, we found that while economic benefits typically appear in urban areas, rural areas can still potentially benefit from transportation improvement projects.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2023년도 학술발표회
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• pp.26-26
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• 2023

General circulation models (GCMs) are widely used in hydrological prediction, however their coarse grids make them unsuitable for regional analysis, therefore a downscaling method is required to utilize them in hydrological assessment. As one of the downscaling methods, convolutional neural network (CNN)-based downscaling has been proposed in recent years. The aim of this study is to generate the process of dynamic downscaling using CNNs by applying GCM output as input and RCM output as label data output. Prediction accuracy is compared between different input datasets, and model structures. Several input datasets with key atmospheric variables such as precipitation, temperature, and humidity were tested with two different formats; one is two-dimensional data and the other one is three-dimensional data. And in the model structure, the hyperparameters were tested to check the effect on model accuracy. The results of the experiments on the input dataset showed that the accuracy was higher for the input dataset without precipitation than with precipitation. The results of the experiments on the model structure showed that substantially increasing the number of convolutions resulted in higher accuracy, however increasing the size of the receptive field did not necessarily lead to higher accuracy. Though further investigation is required for the application, this paper can contribute to the development of efficient downscaling method with CNNs.

• 동아시아경상학회지
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• 제9권1호
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• pp.41-51
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• 2021

Purpose - The purpose of this study is to propose strategies of improving efficiency of 20 listed port companies in China based on analysis of their input-output indexes from 2014 to 2018. Research design, data, and methodology - In this paper, the relevant input-output indicators of 20 listed port companies in China from 2014 to 2018 were adopted. Data derived from the company annual reports announced by Shanghai stock exchange and Shenzhen stock exchange. Comprehensive efficiency and pure technical efficiency were measured from output perspective by DEA and Malmquist index, and efficiency changes and regional efficiency were analyzed. Result - The results showed that the efficiency value of 20 listed port companies in China fluctuated and increased during 2014-2018, regional efficiency was unbalanced, and change of MPI was influenced by internal factors and external factors. Listed port companies affected by internal and external factors needed to make appropriate response to internal and external factors. Conclusion - The research conclusion can provide important reference information about management and planning for port companies in China and related areas. However, this paper is limited to the availability of data. So the improvement scheme for listed companies in inefficient regional ports needs further study, such as using AHP method.

• 농촌계획
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• 제14권2호
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• pp.13-23
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• 2008

In this paper, we estimated the economic impacts of Korea-EU FTA on the agricultural sector in GyeongGi-Do. In particular, we estimated the economic impacts of agricultural production decrease resulting from Korea-EU FTA for 31 sub-regions in GyeongGi-Do by 15 industrial sectors. We employ a regional economic impact model combining a regional input-output model with a spatial allocation model. We found that the size of inter-industrial impacts are quite different across regions. Our results suggest the importance of agricultural and industrial policy considering the impacts of industrial sectors at the regional level.

• 한국항만경제학회지
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• 제24권4호
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• pp.349-361
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• 2008

국내 항만 간 수출입 물동량 처리실적은 지속적으로 변화하고 있다. 수출에서는 부산항의 비중이 크고 빠르게 감소함과 더불어 국내 여타 항만들의 비중이 증가하고 있으며, 수입에서는 인천항의 비중이 빠르게 높아지고 있다. 이에 본고는 DEA모형을 이용하여 도출한 국내 항만의 수출효율성과 수입효율성을 종속변수로 하여 패널분석을 한다. 또한 패널 분석의 단점을 보완하기 위하여 효율성 척도를 종속변수로 하여 이분산 토빗모형을 적용한다. 먼저 모형을 설정하고 모형의 안정성을 담보한 후 패널분석을 실시하여 고정계수모형과 확률계수모형에 관계없이 항만수출비중은 음의 부호로 유의하나 항만수입비중은 유의하지 않다는 것과 지역수출비중은 음의 부호로 유의하나 지역수입비중은 효율성과 유의한 관계를 갖지 않는다는 것을 보인다. 규모더미변수를 투입하여 부산항을 제외한 광양항, 평택항, 인천항, 울산항과 같은 대규모 항만의 효율성이 목포항과 군산항과 같은 소규모 항만의 효율성보다 높지 않다는 것도 밝힌다. 이분산성을 고려한 type II 토빗모형을 적용하여 지역의 수출은 효율성에 부정적 영향을 미치는데 비해 지역항만의 수출은 긍정적 영향을 미치며, 지역내총생산은 수출효율성에 별다른 영향을 미치지 않는다는 것을 보인다. 이러한 결과를 통해 배후단지 조성과 항만의 효율성이 동의어가 아니라는 것도 보인다.

• 농촌지도와개발
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• 제21권3호
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• pp.155-179
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• 2014

산업연관분석은 현재 관광산업의 경제적 파급효과를 분석하는 데 널리 사용되고 있다. 이 연구는 소득과 고용의 측면에서 지역개발에 영향을 미치는 농촌관광마을 육성사업의 경제적 파급효과를 분석하는 데 그 목적이 있다. 이를 위하여 한국은행(2011)에서 작성한 산업연관표(2009)를 이용하여 농촌관광의 생산, 소득, 고용, 부가가치 승수를 도출하였다. 산업연관모형에 의한 경제적 파급효과 분석결과, 2011년 농촌관광개발로 인한 직간접 및 유발 생산파급액은 1조 3,872억 원, 소득파급액은 2,872억 원, 부가가치파급액은 2,754억 원, 고용자는 41,127명에 이르는 것으로 나타났다. 특히 음식점업의 생산과 고용승수는 타 산업에 비하여 높은 반면, 소득 및 부가가치승수는 타 산업에 비하여 낮은 것으로 나타났다. 이러한 결과는 음식점업이 노동집약적인 산업으로 고용창출효과가 높은 산업이라는 것을 시사해주고 있다.