• Title/Summary/Keyword: regional model

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Comparative Study of Regional-scale Ecological Risk Assessment used in Developed Countries (지역단위 생태위해성평가 선진국사례 분석)

  • Shin, Yu-Jin;Lee, Woo-Mi;An, Youn-Joo
    • Environmental Analysis Health and Toxicology
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    • v.25 no.2
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    • pp.169-177
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    • 2010
  • Ecological risk assessment (ERA) has been used to establish environmental quality standards or evaluate ecological risk in site-specific areas. The scope of ERA was expanded based on regions, and the concept of regional-scale ecological risk assessment was recently introduced in developed countries. In the present study, regional ERA approaches of relative risk model (RRM), contaminants in aquatic and terrestrial ecosystems (CATS) model, and procedure for ecological tired assessment of risks (PETAR) in advanced countries were extensively investigated. Regional ERA was compared with traditional ERA process. Stressors, receptor and response in traditional ERA were replaced with sources of stressors, habitats, and ecological impacts, respectively in regional ERA. This study introduces the concept and assessment process of regional ERA, and provides a wide perspective how the relative ERA could be applied in Korean ecosystem.

An Analysis of Korean Regional Agricultural and Agri-Manufacturing Clusters Using Multi-Regional Input-Output Model (우리나라의 권역별 농산업 클러스터 분석: 6개 권역간 산업연관모형희 적용)

  • Yoon, Min-Kyoung;Choi, Myoung-Sub;Kim, Eui-June
    • Journal of Korean Society of Rural Planning
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    • v.16 no.1
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    • pp.9-20
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    • 2010
  • The aim of this paper is to identify Korean agricultural and agri-manufacturing cluster using a multi-regional input-output model. This paper derives a representative set of five agricultural and agri-manufacturing clusters in Korea in terms of spatial and industrial interdependency. The results show that agriculture and agri-manufacturing clusters agglomerated in Seoul Metropolitan Area and Chungcheong Area are linked both production and manufacture functions, whereas Gangwon Area is more focused on production and Jeolla Area is more concentrated on manufacture.

Analysis of Factors Affecting the Smoking Rates Gap between Regions and Evaluation of Relative Efficiency of Smoking Cessation Projects (지역 간 흡연율 격차 영향요인 분석 및 금연사업 상대적 효율성 평가: Clustering Analysis와 Data Envelopment Analysis를 활용하여)

  • Kim, Heenyun;Lee, Da Ho;Jeong, Ji Yun;Gu, Yeo Jeong;Jeong, Hyoung Sun
    • Health Policy and Management
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    • v.30 no.2
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    • pp.199-210
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    • 2020
  • Background: Based on the importance of ceasing smoking programs to control the regional disparity of smoking behavior in Korea, this study aims to reveal the variation of smoke rate and determinants of it for 229 provinces. An evaluation of the relative efficiency of the cease smoking program under the consideration of regional characteristics was followed. Methods: The main sources of data are the Korean Statistical Information Service and a national survey on the expenditure of public health centers. Multivariate regression is performed to figure the determinants of regional variation of smoking rate. Based on the result of the regression model, clustering analysis was conducted to group 229 regions by their characteristics. Three clusters were generated. Using data envelopment analysis (DEA), relative efficiency scores are calculated. Results from the pooled model which put 229 provinces in one model to score relative efficiency were compared with the cluster-separated model of each cluster. Results: First, the maximum variation of the smoking rate was 16.9%p. Second, sex ration, the proportion of the elder, and high risk drinking alcohol behavior have a significant role in the regional variation of smoking. Third, the population and proportion of the elder are the main variables for clustering. Fourth, dissimilarity on the results of relative efficiency was found between the pooled model and cluster-separated model, especially for cluster 2. Conclusion: This study figured regional variation of smoking rate and its determinants on the regional level. Unconformity of the DEA results between different models implies the issues on regional features when the regional evaluation performed especially on the programs of public health centers.

Determinants and Regional Patterns of Parent-child Coresidence among Older Korean Parents, 1985-2005 (노부모-자녀 동거의 결정요인과 지역간 차이, 1985-2005)

  • Kim, Mi-Young;Lee, Seong-Woo
    • Journal of Korean Society of Rural Planning
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    • v.15 no.4
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    • pp.89-107
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    • 2009
  • The main objective of the present study is to find out which factors affect coresidence between older Korean parents and their adult children and to examine the regional patterns of the phenomenon. The 1980, 1995 and 2005 Korea census data are used to investigate the determinants of two types of parent-child coresidence. The two types are coresidence with married adult children and one with unmarried adult children. The study takes advantage of the multilevel mltinomial logit model, allowing the model to capture regional differences. Findings from the study are: (1) Korean parents' coresidence with their married adult children and one with their unmarried adult children are distinctive in their determinants; (2) variables related to wealth or economic status are positively related with possibilities of both types of coresidence; and (3) considerable regional differences in the possibility of coresidence do exist among regions in Korea.

Analysis of the Efficiency of the Regional Public Hospitals using DEA-AR/AHP Combined Model (DEA-AR/AHP 결합모형을 이용한 지방의료원의 효율성 분석)

  • Yang, Dong-Hyun
    • Health Policy and Management
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    • v.20 no.4
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    • pp.74-96
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    • 2010
  • The purpose of this empirical study is to evaluate efficiency of the regional public hospitals, using DEA(Data Envelopment Analysis). to do this, we design a DEA-AR/AHP Hybrid model to evaluate efficiency of 34 Regional Public Hospitals. the proposed model is developed by adding Acceptance Region(AR). using analytical hierarchy process(AHP). this model is compared with those of typical DEA models. Financial data used in this study were obtained from Database of the Korea Association Regional Public Hospital and analyzed using DEA model. As a result of analysis, This study found that the DEA-AR/AHP Hybrid model was superior to those typical DEA models in determining the priority among efficient hospitals. the result of this study can provide helpful information to evaluate the efficiency of public hospitals for efficient operational management, to develop more precise measurement for the priority of the efficient hospitals.

A Study on Dynamic Models for Ports and Regional Economy (항만과 지역경제간의 동태적 모델에 관한 연구)

  • 오세용;여기태;이철영
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2000.11a
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    • pp.15-23
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    • 2000
  • If a system such as a port and regional economy has a large boundary and complexity, the system's substance is considered as a black box, forecast accuracy will be very low. Futhermore various components in a port and regional economy exert significant influence on each other. To copy with these problem the form of structure models were introduced by using SD model. This study has the issue of simplifying the regional economic effects of the port as contributing to raising the regional income. The regional economic effects of port have various indirect ones except for this. So, SD(System Dynamics) was presented, and applied to simulate port and regional economy.

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A Study on Dynamic Models for Ports and Regional Economy (항만과 지역경제간의 동태적 모델에 관한 연구)

  • 오세웅;여기태;이철영
    • Journal of Korean Port Research
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    • v.14 no.4
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    • pp.387-394
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    • 2000
  • If a system such a port and regional economy has a large boundary and complexity, the system's substance is considered as a black box, forecast accuracy will be very low. Futhermore various components in a port and regional economy exert significant influence on each other. To copy with these problem the from of structure models were introduced by using SD model. This study has the issue of simplifying the regional economic effects of the port as contributing to raising the regional income. The regional economic effects of port have various indirect ones except for this. So, SD(System Dynamics) was presented, and applied to simulate port and regional economy.

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Transport Spillover Effect on Airport Networks and Its Impact on Regional Economy (운송 파급효과가 항공네트워크와 지역경제에 미치는 영향)

  • Xinchen Wang;Po-Lin Lai
    • Korea Trade Review
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    • v.47 no.4
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    • pp.35-52
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    • 2022
  • Air transport is at the core of global economic growth. There is a close relationship between the flow of regional elements and the growth of the regional economy. It is easy to misestimate the impact of airports on the regional economy without considering spatial spillover effects. This study attempted to establish an asymmetric economic geographical weight matrix by applying the Spatial Durbin Model with cargo volume and passenger numbers as indicators. The influence of spillover effects on the regional economy, including direct spillover effects and indirect spillover effects are studied. The results revealed that passenger numbers and cargo volume have significant positive spillover effects on the regional economy. The driving effect of the airport on the regional economy was considered from a wider space scope. This study contributes to the scientific evaluation of the aviation economy.

Determinants of the Digital Divide using Hierarchical Generalized Linear Model (위계선형모형을 이용한 개인의 정보화 격차 결정요인)

  • Kim, Mi-Young;Choe, Young-Chan
    • Journal of Korean Society of Rural Planning
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    • v.14 no.3
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    • pp.63-73
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    • 2008
  • The purpose of this study is to analyze the determinants of the digital divide at individual level and regional level in Korea, considering interaction between individual and the regional variables. Following results are obtained. First, individual level digital devide in the 16 different regions has been found in terms of Internet use, implying the needs for further analysis on impact of the regional factor in individual Internet use. Second, the result finds the impact of level-l individual variables, "gender, age, education, income and jobs" on digital divide, significantly at level 10% level. Third, the regional variables influencing the individual digital divide were not found at state level. However, regional factors might affect digital devide at county level. Study suggest some plans to reduce digital divide. First, the digital devide at individual level should be remedied by focusing on neglected class of people. Second, we need to approach the digital divide by analyzing in more detail, reflecting interactions of the regional variables and individual variables. Third, we should come up with a policy for mending the digital divide at regional level.

Analysis of Determinants of Regional Unemployment Rate Using Dynamic Spatial Panel Model (동적공간패널모형을 이용한 지역 실업률 결정요인 분석)

  • Kim, So-Youn;Ryu, Su-Yeol
    • Asia-Pacific Journal of Business
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    • v.13 no.1
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    • pp.277-288
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    • 2022
  • Purpose - This study analyzed the determinants of local unemployment rate in Korea using panel data from 16 metropolitan cities and provinces from 2000 to 2018. Design/methodology/approach - We use a dynamic spatial panel model that considers characteristics of the regional unemployment rate such as the common factors effect, spatial dependence, and serial correlations. Findings - The local unemployment rate is affected by the past and present values of the national unemployment rate. And it is significantly affected by the past local unemployment rate and the past neighboring unemployment rate because spatial dependence and serial correlations are clearly present. In addition, when the industrial structure diversity and labor productivity were high, the regional unemployment rate decreased, and when the education level was high, the regional unemployment rate increased. Research implications or Originality - In order to reduce regional unemployment rate, it is necessary to plan and establish regional customized industrial structure policies under the stance of diversification rather than specializing the regional industrial structure and accompany improvement of the quality of education with the number of years of education. In addition, the redistribution of labor from low labor productivity sectors to high labor productivity sectors through technology development will help to reduce the local unemployment rate.