• Industrial Engineering and Management Systems
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• 제15권4호
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• pp.403-431
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• 2016

The objective of this study is to integrate the business, maintenance and production processes of a manufacturing system by incorporating errors. First, the required functions are estimated according to the historical data. The system activities are simulated by Visual SLAM software and the required outputs are obtained. Several outputs including lead times in different dimensions, total cost and production rates are computed through simulation. Finally, data envelopment analysis (DEA) is utilized in order to select the best option between the defined scenarios due to the multi-criteria feature of the problem. This is the first study in which the lead times, cost and production rates are simultaneously considered in the integrated system imposed of business, maintenance and production processes by incorporating errors. In the current study, the major bottlenecks of the system being studied are identified and suggested different strategies to improve the system and make the best decision.

• International Journal of Advanced Culture Technology
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• 제9권3호
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• pp.34-45
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• 2021

On February 18, 2019, the Chinese government officially released the Outline of the Development Plan for the Guangdong-Hong Kong-Macao Greater Bay Area, which will lead the country in a new round of reform and opening-up. The Greater Bay Area will become a dynamic world-class city cluster, an international scientific and technological innovation center with global influence, an important support for the development of the "One Belt And One Road", a demonstration area for in-depth cooperation between the mainland and Hong Kong and Macao, and a high-quality living area for living, working and traveling. Non-Pearl River Delta(Non-PRD) cities in Guangdong Province are adjacent to the Guangdong-Hong Kong-Macao Greater Bay Area, so it is of practical significance to promote the high-quality development of urban tourism from an international perspective. Based on the panel data released in Guangdong Yearbook 2019, this paper uses the envelopment data analysis (DEA) method to explore ways to promote the high-quality tourism development of Non-PRD cities in Guangdong Province based on the perspective of international development.

• 수산경영론집
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• 제40권1호
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• pp.1-26
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• 2009

The aquaculture management considers the maintenance of households lifehood more than profit maximization. As aquaculture industry has developed enterprise farms appeared, and the small and the large scale farms coexist. The features of coexistence could be summarized as followings. First of all, the large scale farms show the higher net profit while the small scale farms show the higher profit per 1ha and the earning rate. Secondly, in the case of over 2ha, the earning rate is stable in spite of the scale expansion. Moreover, in processing method, dried seaweed occupy the biggest proportion in the small scale farms while the raw seaweed occupy the biggest proportion in the large scale farms. Lastly, the scale of farms becomes larger, the participation rate of household labor rises. This thesis analyses the efficiency of Korean seaweed farms in the way of DEA model and suggests the improvements for the efficiency management. The mean technical, pure technical and scale efficiencies were measured to be 0.88, 0.96 and 0.91, respectively. Among the 20 farms included in the analysis, 10 were technically efficient and 12 were scale efficient. In conclusion, it is shown that the aquaculture farms has been becoming the form of coexistence. This appearance results in the effort for reducing the cost in the small scale farms and in profit maximization in the large scale farms. On the other hand, middle scale farms is inefficient compared with the small or large scale farms. Therefore, in order to achieve the efficiency, it is necessary to accomplish economy of scale by extending farm size or to cut expenses by reducing farm area. In other word, the efforts for achieving the efficiency is required in a different direction in spite of the same scale.

• 한국식품영양학회지
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• 제22권1호
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• pp.132-140
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• 2009

This study was performed to examine the manpower structure of foodservice operations, evaluate the management efficiency of each operation, and propose efficiency improvement guidelines for inefficient operations. For this purpose, a total of 224 B&I foodservice operations managed by an 'A' contract-managed foodservice company were chosen as the study sample. The efficiency scores were obtained through Data Envelopment Analysis(DEA) using the CCR model. The efficiency scores ranged from 63.56 to 100 and the average score was 82.47. The average efficiency score of Group 'C'(factory, more than 1,000 meals per day) was the highest among 6 groups. The results of further operations analysis in group 'C' showed that the labor cost percentage was significantly lower(p<0.001) and sales per man-hour significantly higher(p<0.001) in efficient operations compared to inefficient operations within group 'C'. Finally, efficiency improvement guidelines were suggested for the most inefficient operations in group 'C'.

• Ocean and Polar Research
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• 제32권4호
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• pp.387-396
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• 2010

This paper estimates changes in the total factor productivity and technical efficiency change index and the technical change index using the Malmquist productivity index (MPI) in fishery-processed wholesale products over the time period spanning 2006-2008. The model considers a number of employees and operating costs as input factors, and sales and EBIT (earnings before tax and interest) as output factors. The results demonstrate that, between 2006 and 2007, there has generally been no technical progress, although a small improvement in productivity was detected in the sales scale of 10 billion won-50 billion won. Between 2007 and 2008, there was technical progress in the majority of DMU, except within the range of 20 million won-10 billion won. Wilcoxon's rank-sum test, however, demonstrates no statistically significant differences in productivity between the two periods.

• 품질경영학회지
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• 제50권1호
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• pp.139-151
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• 2022

Purpose: This study aims to delve into the empirical implications in management efficiency by analyzing the relation between management efficiency and debt ratio in public institutions. Methods: Based on 165 public institutions published in public business information system from 2016 to 2020, Data Envelopment Analysis(DEA) for estimating management efficiency was performed. This study analyzed the relationship between management efficiency and debt ratio using multi-regression analysis. It also examines how the relationship varies depending on the type of public institution. Results: The results of this study are as follows; We find that there is no significant relation between management efficiency and debt ratio. However, we find that this relationship can be different depending on the type of public institution. Management efficiency is negatively associated with debt ratio for quasi-market type public institutions. This negative relation tends to mitigate for market type public institutions, which suggests that management efficiency may convey differential implications depending on the type of business environment represented by the type of institution. Conclusion: The overall results suggest that the government needs to due caution in establishing a policy plan to reduce debt by increasing management efficiency, taking the specific business environment, particularly with regard the type of institution.

• 국제지역연구
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• 제22권2호
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• pp.61-91
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• 2018

본 연구는 신용보증제도가 효과성 높은 중소기업지원 수단의 하나로서, 그 성과를 업무성격이 다른 국내 공공기관들과 비교하는 것보다 매우 유사한 형태로 운영되고 있는 일본, 대만 신용보증기관과의 글로벌 효율성 비교가 훨씬 유용할 수 있다는 측면에서 3개국 70개 기관의 2016년도 효율성을 DEA모형과 초효율성 모형을 통해 분석하였다. 분석결과, 우리나라 신용보증기관들의 효율성이 일본에 비해 다소 높은 것으로 나타났으며, 효율적으로 운영되고 있는 DMU의 숫자도 비교적 적정한 것으로 분석되었다. 초효율성점수는 히로시마, 대만SMEG, 부산, 지바, 시즈오카, 울산, 기보 순으로 나타났다. 또한, 대부분의 신용보증기관들은 규모수익상태가 체증규모수익상태에 있는 것으로 분석되어 적정수준의 투입 증가전략을 추진하는 것이 효율적일 수 있는 것으로 판단된다. 또한, 우리나라와 일본간 효율성 격차는 통계적으로도 유의한 차이를 보였다. 정책적 시사점으로는 첫째, 일본 신용보증제도의 동향에 대한 주기적 분석이 필요하며, 둘째, 신용보증규모가 국가경제 및 중소기업정책에 미치는 영향을 파악하여야 하고, 셋째, 효율성 결정요인에 관한 분석이 필요하며, 넷째, 비효율의 원인을 고려하여 효율성 개선전략의 방향성을 정립하여야 하고, 다섯째, 다각적인 측면에서 효율성 측정이 이루어질 필요가 있음을 제시하였다.

• 한국산학기술학회논문지
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• 제21권8호
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• pp.512-520
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• 2020

본 연구의 목적은 지방의료원의 상대적 운영효율성과 영향요인을 측정하고 비효율적인 지방의료원에 대해 효율성 제고를 위한 벤치마킹 포인트를 제시하는데 있다. 조사대상은 2014년부터 2018년까지 최근 5년간 국내 34개 지방의료원을 대상으로 내부자원과 경영실적 자료를 수집 활용하였다. 조사대상 기간 중간인 2015년에 개원한 진안군의료원은 제외하고 최종 33개 지방의료원을 조사하였다. 분석방법으로 일반적 특성과 투입·산출 변수는 빈도분석과 기술통계량 분석을, 운영효율성 지수 측정 및 상대비교를 위해 자료포락분석을 실시하였다. 연구결과, 효율병원은 11개소로 33.3%, 비효율병원은 22개소로 66.7%를 보였다. 비효율병원 22개소 중에서 규모의 확대가 필요한 IRS(규모수익체증)는 13개 소, 규모의 축소 또는 재조정이 필요한 DRS(규모수익체감)는 9개소로 나타났다. 본 연구의 의의는 상대적 효율성과 영향요인 분석을 통해 지방의료원의 성장과 지속가능 경영 및 공공성 확대를 위해 효율성 제고에 도움을 줄 수 있는 구체적인 대안이나 방향성을 제시하였다는 점이다.

• 한국콘텐츠학회논문지
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• 제12권9호
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• pp.340-347
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• 2012

게임 소프트웨어 및 서비스 산업에 관한 연구가 학술적 정책적으로 의미있는 이유는 우리나라 문화산업의 핵심분야로 자리잡고 있기 때문이다. 그러나 치열한 경쟁력으로 인해 최근의 성장추세는 둔화되고 있다. 즉, 단기적인 수익창출에만 중점을 두었던 기업경영으로 인해 성장의 한계에 달했다는 평가이다. 이에 따라 효율적이고 혁신적인 기업경영의 도입과 중장기적 관점의 상품개발 및 R&D 전략수립의 필요성이 강조되고 있다. 이러한 문제의식에 따라 본 연구는 게임 소프트웨어 및 서비스 산업에 속하는 20개 기업의 경영효율성을 측정하기 위해 자료포락분석(DEA)을 실시하였다. 투입변수는 종업원수, 총자산, 투자자산이며, 산출변수는 총매출액과 기업가치로 하였다. 분석 결과는 다음과 같다. 첫째, 효율성에 격차가 있었다. 8개 기업이 비효율적이었다. 둘째, 비효율적인 기업의 경우 종업원수와 투자자산의 비중이 과다한 기업이 6개로 나타났다. 셋째, 규모수익불변인 DMU는 4개이며, 규모수확체증 5개 DMU는 투입요소의 규모를 늘려 효율성을 증가시켜야 하며, 그리고 규모수확체감 11개 DMU는 기업은 투입요소의 효율성 향상 방안을 수립해야 할 것으로 나타났다.

• 농촌지도와개발
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• 제9권2호
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• pp.263-277
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• 2002

The objective of this study was to compare the farm efficiency of members of cooperative firms with that of non-members in Korea. Data were collected from 27 farms members of three cooperatives and 13 non-member farms, based on the managerial achievements of 1999. For the analysis, the data were divided into three different farming types: type I and II of member farms and non-member farms. Economic analysis were implemented using DEA(Data Envelopment Analysis). Major findings was as follows. Total average technology efficiency was 0.782, which implies that there still remains 21.8% of improvement possibility. Among the three types, type I showed the highest technology efficiency of 0.9055, while type II and non-member farms showed 0.7670 and 0.7171, respectively. This means that these farms have relatively high potential improved. Also, comparing technology efficiency by dividing into pure technology and scale efficiency, all type of the farms exhibit a higher pure technology efficiency compared to scale efficiency. Therefore, to improve current technology efficiency, farms need to focus more on pure technology efficiency improvement. Meanwhile, profit analysis based on farm size indicate that most of the farms demonstrated the increasing-return-to-scale, which means it is necessary to extend the farm size to improve technical efficiency. Type I member farms achieve higher profit and efficiency than other two types and relatively higher producer prices through introducing cooperative sorting, grading and packing. Also, these labor saving technologies increased farm size.