• Title/Summary/Keyword: 투입산출모형

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A Study on the Management Efficiency of 'Da U' Sesame Farms in Yangpyeong County (양평군 다유들깨 농가의 경영 효율성 분석)

  • Piao, Shi-Yong;Kim, Sang-Man;Sun, Yu-Cong;Jin, Xuan-You;Lee, Jin;Lee, Jong-In
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.1
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    • pp.504-511
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    • 2020
  • This paper studies the operational efficiency of the new sesame variety "da u" farmed by the Rural Development Administration. In the survey area--Gyeonggi-do Province, where sesame cultivation was the most intensive. Thirty farmers were surveyed by rural enterprises in the Yangpyeng area where 'da u' was planted. The efficiency of the operation was analyzed by studying the data of 30 farmers. In order to analyze the operational efficiency of the farmers, this survey used the DEA model for analysis in order to determine the technical efficiency of farmers. The result shows that the DEA technical efficiencies of most farmers are efficient, and only 6 farmers are inefficient. The reason for the inefficiency is the high cost of input factors. To analyze the determinants of efficiency through the Tobit model, reducing the pesticides and general fertilizers led to increased technical efficiency. This is inefficient use of pesticides and general fertilizers relative to the output factor, and efficient methods should reduce the cost issues.

Identifying Potential Industrial Symbiosis through GIS Based Resource Circulation Information (GIS 기반 자원순환정보 구축을 통한 잠재적 산업공생관계 파악 연구)

  • Chung, Hyun-Wook;Park, Sun-Hyung;Kim, Jung-Hoon;Lee, Sang-Yoon;Park, Hung-Suck;Kwon, Chang-Ki
    • Journal of the Korean Association of Geographic Information Studies
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    • v.13 no.3
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    • pp.74-90
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    • 2010
  • The objectives of this paper are to introduce the GIS based resource circulation information, and to identify additional(or potential) industrial symbiosis based on existing industrial symbiosis and linkage-pair of industry by material. The resource circulation information contains information of the reuse of materials, water, and energy for all manufacturing companies in Ulsan Metropolitan City. The information can further be classified into the three steps -- input information(raw materials), flow information (products), and output information (by-products). The survey data from 3,768 industries and institutions in Ulsan Metropolitan area were collected and built into the GIS to analyze the mechanism of the industrial symbiosis. The results of this study strongly suggest that there are some additional industrial symbioses using by-products(materials, steam, waste water) and further efforts should be given to make them more effective. We expect that the methodology of building the resource circulation information of this study can be helpful to other local governments that try to build similar system.

The Differential Effects of Transformational Leadership and Organizational Justice on Work Engagement : the Mediating Role of Psychological Contract Breach (변혁적 리더십 및 조직 공정성이 직무열의에 미치는 차별적 영향 : 심리적 계약위반의 매개효과)

  • Baec, Chae-Yoon;Shin, Je-Goo
    • The Journal of the Korea Contents Association
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    • v.17 no.1
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    • pp.299-336
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    • 2017
  • The purpose of this study is to identify the differential effects of transformational leadership and organizational justice on psychological contract breach and work engagement, and to suggest practical implications. To this purpose, this study theoretically references equity theory which recognizes the relationship between organizational input and output, social exchange theory which explains the exchange relationship between members and organization, and job demand-resource (JD-R) model that combines job demands and job resources. A empirical study was conducted on 277 employees at 18 companies of diverse industries including manufacturing, distribution, and finance, and to eliminate the common method bias problem, the dependent variable was measured using peer evaluation. The results of this study showed that: 1) both transformational leadership and organizational justice had a significant positive effect on work engagement and significant negative effect on psychological contract breach; and 2) psychological contract breach played a partial mediating role in the relationship between transformational leadership and work engagement as well as between organizational justice and work engagement. Therefore, this study suggests that, as organizational justice has stronger influence on work engagement and psychological contract breach than transformational leadership, organizations should not only train its leaders but also guarantee fairness.

Data Envelopment Analysis for Evaluating Construction R&D Efficiency (건설R&D사업의 효율성평가를 위한 DEA 연구)

  • Park, Sang-Hyuk;Han, Seung-Heon;Kim, Dae-Hwan
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2007.11a
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    • pp.255-260
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    • 2007
  • The construction industry has been recognized as lagging behind other industries in the area of research and development (R&D) due primarily to the lack of R&D funds. To overcome this situation, the Korea Ministry of Construction and Transportation has a plan to expand its investments on the construction R&D up to 1.72 billion US dollars over the next 3 years. Despite this effort, it is still challenging to conduct the quantitative measurement on the efficiency of construction R&D projects, which can be utilized as the objective basis in the reasonable selection of a promising R&D team or in the consequential evaluation of a R&D performance. This study aims to conduct the efficiency analysis on the construction R&D projects to provide the basis for evaluating the performance of research and development. Toward this end, this study performs an efficiency analysis, which reflects all of the input and output data into/from the construction R&D by utilizing the Data Envelopment Analysis (DEA). The proposed methodology can be utilized to make a better decision on the priority of the R&D investments and present a sound basis to suggest the areas to be improved so as to reduce the inefficiency of R&D projects.

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Study on Innovation Measurement of National R&D Investments for Nanotechnology Using Data Envelopment Analysis (자료포락분석을 통한 국가 나노기술 연구개발투자 결과의 혁신성 분석 연구)

  • Lim, Jung Sun;Hahn, Hyuk;Won, Dong-Kyu;Kim, Sanggook
    • Journal of Korea Technology Innovation Society
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    • v.22 no.2
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    • pp.207-219
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    • 2019
  • The international trends in activities of government R&D performance measurement is evolving into evidence-based approach to support the verification of objective policy implementation. The European Commission has been implementing KETs (Key Enabling Technologies) policy that incubates nanotech based emerging technologies to support the fourth industrial revolution/revitalization of high-tech manufacturing, and resulting innovations are quantified by KETs Observatory project. The European Commission also built Innovation Radar system that monitors potentially innovative projects within FP7 and Horizon2020 by data analysis. The United States is also upgrading its Federal RePORTER system to quantitatively monitor federal R&D investments with outcomes (including nanotechnology). In the field of Korean nanotechnology, basic statistical data by analyzing NTIS (National Science & Technology Information Service) information is applied in policy field. Developing innovation measurement methodology beyond basic statistical analysis is an international policy issue, and a long-term R&D investment area of a government. The objective of this model study is to quantify the innovation potential of nano R&D investments conducted by Korea government, using input-output based efficiency measurement model and NTIS (National Science & Technology Information Service) that is comprehensive data portal for national R&D investments/outcomes including nanotechnology.

Factors related to Meaning of Life of patients with Hemodialysis (혈액투석 환자의 생의 의미에 영향을 미치는 요인)

  • Lee, Sun Ra;Park, Yoonjin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.1
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    • pp.743-750
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    • 2021
  • Purpose: The purpose of this study was to analyze factors affecting the meaning of life in patients on hemodialysis. Methods: The sample consisted of 176 adults diagnosed with chronic kidney disease at hospitals in Seoul and Gyeonggi-do who had been receiving hemodialysis for more than three months. The patients volunteered to participate in the study. Data collection instruments used were the Meaning in Life (ML) scale, Resilience scale, Beck Depression Inventory-II (BDI-II) and Fatigue scale questionnaire. The SAS9.2 version was used for descriptive analysis, independent t-test, one-way ANOVA, Pearson's correlation coefficients and stepwise multiple regression. Results: The mean total item score on the meaning of life scale was 133.68 (total score:180), which was low. There was a significant relationship between the ML scale and resilience, depression, and fatigue. Stepwise multiple regression analysis showed that resilience, religion, depression, and fatigue were predictors of the meaning of life. Conclusion: These results indicate a need to develop nursing interventions to increase resilience and reduce depression and fatigue to promote the meaning of life in patients on hemodialysis.

Evaluating Teacher Policy of Park Geun-hye Government (박근혜정부의 교원정책 평가)

  • Shin, Hyun-Seok;Yonn, Ji Hee
    • (The)Korea Educational Review
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    • v.23 no.4
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    • pp.101-133
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    • 2017
  • This Study aims to evaluate teacher policy in the Park Administration and to suggest tasks based on the results. To attain the aim, it describes overall teacher policy process in Park Administration and evaluates teacher policy based on the criteria which was driven from the CIPP model. The conclusions are summarized as follows. First, the environmental suitability of the situation assessment was met in general. The reason for this was that the teacher policy of the Park Geun-hye government was introduced reflecting changes in the environment and demands of policy stakeholders. The validity and feasibility of the policy objective of the input evaluation were not satisfied. There were deficiencies in the objectives of the policy measures. The objectives of the measures were not linked to the policy objectives. The budget necessary for policy enforcement were not secured. In future policy design, efforts should be made to examine whether the policy goals are valid, to secure resources necessary for policy implementation and to increase the feasibility of policies. The procedural rationality of the process evaluation and the suitability of the means were not met. Discussion with the interest group was omitted, it was not clear whether the implementation of the policy was linked to the policy goal. In the future, it will be necessary to focus on procedures such as communication and collaboration with stakeholders, to make immediate revisions in case of problems. The effectiveness and satisfaction of the output evaluation were low. Because the validity of the policy objectives, the suitability of the means, and procedural rationality were not satisfied. In the future, it will be necessary to systematically design policies and communicate with stakeholders in the execution process to prevent policy failures and actively.

Management performance analysis using the DEA model of the food waste recycling facility (음식물류 폐기물 자원화 시설 DEA모형을 활용한 경영성과 분석)

  • Jeoung, IlSeon;Kim, Youngkyun
    • Journal of Korea Society of Industrial Information Systems
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    • v.27 no.4
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    • pp.105-114
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    • 2022
  • As the national income level is improving, housing urbanization and economic speed are progressing rapidly, household waste and food waste are rapidly increasing. The "Waste Management Act" (founded in 1991) introduced the volume-based household waste system in 1995, and even after implementation, the odor of food waste and the prompt disposal process continue to be a social problem.For this reason, the food waste recycling business is attracting attention. In this paper, regarding the role of resource recycling such as feed, compost, and other resources of food waste, this thesis aims to reduce the inefficiency of the recycling process. Data Envelopment Analysis (DEA) of the relationship between inputs and outputs of 33 facilities nationwide, excluding facility data (insufficient) among 394, (238 public, and 156 private ones), as of the end of 2020, which is running a domestic resource recycling project This study was conducted to investigate the important role in the relative management performance of food waste recycling facilities.It was hypothesized that the influence of business history, facility capacity, capital, and machinery of a company running a food waste recycling business on sales was tested.

Comparing the Industrial Characteristics of Smart City in Korea and Spain (한국과 스페인의 스마트시티 산업 특성 비교)

  • Jo, Sung Su;Lee, Sang Ho
    • Journal of the Korean Regional Science Association
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    • v.38 no.3
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    • pp.19-39
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    • 2022
  • The aim of this study is to compare and analyze structural characteristics of smart city industry focused on Korea and Spain. Structural characteristics of industries were compared focusing on share, penetration, impact path and network clustering of smart industries. Research data used input-output tables established by Korea and Spain in 1995 and 2015, and industries were reclassified into 8 and 25 industries. The analysis model is the Smart SPIN Model. The key finding as follows: It was analyzed that there are differences in the structure and characteristics of the smart city industry between Korea and Spain. Firstly, It is analyzed that Korea has a larger share and penetration rate of IT manufacturing than Spain. On the other hands, Spain has a higher share and penetration rate in the IT service and knowledge service sectors than Korea. Secondly, Korea had many production paths for the IT service and the knowledge service. On the other hands, Spain included more production paths in the IT manufacturing sector. Thirdly, as a result of network analysis, Korea's smart industry has a characteristic that it is difficult to develop independently because it is dependent on traditional industries. In Spain, most of the smart industries were included in one industrial cluster, and it was analyzed to have an independent form. In conclusion, It was found that Korea has the industrial characteristics of a smart city based on IT manufacturing. Spain has the characteristics of smart city industry based on IT service and knowledge service. The results of this study are expected to provide basic data on the direction of smart city promotion and the establishment of smart city policies in Korea.

Research on Water-Energy-Food Comprehensive Utilization Efficiency in China (중국의 물-에너지-식량 종합 이용 효율성을 평가 연구)

  • LU, YULIN;HE, YAN
    • Journal of Digital Policy
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    • v.1 no.2
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    • pp.9-15
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    • 2022
  • The World Economic Forum has included Water-Energy-Food among the three major risk groups in the world, and Water-Energy-Food is related to the development strategies of countries and the lives of their citizens. This study calculates the combined Water-Energy-Food use efficiency in China for 2011-2020 based on the SBM-Malmquist index. The results show that the overall combined Water-Energy-Food efficiency in China is low, but shows an upward trend. There is a clear variability in the combined Water-Energy-Food utilization efficiency in China, with an overall geographic distribution pattern of East > Middle > West. Only Beijing and Shanghai have reached the real above effective nationwide, and all other provinces have inefficiency between input and output. The Malmquist index of integrated Water-Energy-Food utilization efficiency is 1.136, with an up ward trend, and technical efficiency and technological progress lead the improvement of integrated Water-Energy-Food utilization efficiency in China at the sametime. The Water-Energy-Food issue should be raised to a strategic level as soon as possible, and policy support should be provided for its development. Each region should establish a cross-regional coordinating body to formulate targeted measures according to the province's food production and water distribution, so as to promote economic transformation from sloppy development to green development as soon as possible.