• Title/Summary/Keyword: Productivity index

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The Comparative Study of the relationship between Technology Valuation Index and performance in Ventures (기술평가지표와 기업성과의 관계비교분석 -초기중소벤처와 성장중소벤처-)

  • Yang Dong-Woo
    • Journal of Korea Technology Innovation Society
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    • v.8 no.3
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    • pp.1175-1198
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    • 2005
  • The objective of the study is to verify the relationship between technology valuation indexes and corporate's performance in ventures by business operating periods. The result of the study is expected to be useful in loan evaluation, investment decision, internal management decision making and business improvement. The results of study is as follows. First, in early stage ventures, we find that three major valuation index(technology feasibility, economic efficiency, productivity) are significant ex-ante variables which are discriminating between firms' going concern and firms' failure. Second, in growth stage ventures, we find that three major valuation index(business feasibility, general marketability, technology marketability) are significant ex-ante variables which are discriminating between firms' going concern and firms' failure. Third, in early stage ventures, we find that at least thirty-eight minor valuation index elements are significant ex-ante variables which are discriminating between firms' going concern and firms' failure and in growth stage ventures, thirty-one minor valuation index elements are significant in various analysis' results.

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Estimation for Changes of Net Primary Productivity and Potential Natural Vegetation in the Korean Peninsula by the Global Warming (地球 溫暖化에 따른 韓半島의 純一次生産力과 潛在自然植生의 變化 推定)

  • Kim, Jeong-Un;Kil, Bong-Seop
    • The Korean Journal of Ecology
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    • v.19 no.1
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    • pp.1-7
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    • 1996
  • The net primary productivity and potential natural vegetation in the Korean peninsula in the 21st century were estimated by the Miami model and thermal climate, respectively, based on 148 meteorological data sets. In the 21st century, the distribution range of the net primary produtivity in the Korean peninsula was estimated as 1,050 g $DM{\cdot}m^{-2}{\cdot}yr^{-1}~2,050g\;DM\cdot m^-2\cdot yr^{-1}.\; These\; values\; increased\; by\; 200g\; DM\cdot m^{-2}\cdot yr^{-1}\;on\;northern\;part\;and\;400g\; DM\cdot m^{-2}\cdot yr^{-1}$ on southern part compared with that of the present century. The potential natural vegetation in the Korean peninsula in the 21st century will change into the followings:coniferous forest on Mt. Paektu area, deciduous broadleaf forest on northern part, and evergreen broadleaf forset on southern part.

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Development Strategy of Production Management Systems in Korean firms (한국제조업(韓國製造業)의 생산관리(生産管理) 체제(體制)의 발전전략(發展戰略))

  • An, Mun-Yeong;Lee, Geun-Hui
    • Journal of Korean Society for Quality Management
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    • v.19 no.1
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    • pp.170-187
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    • 1991
  • Investments in factory automation do not guarantee productivity enhancement. Much unknown losses may exist in all aspects of production resources such as in material, manpower, machine, etc. Total productivity in korean firms has decreased in recent years. Labor and capital productivity index fall to 0.82 point and 0.73 point, respectively. Investment in FA has Increased rapidly. Tangible fixed assets per capita increased 64% during the past Three years. But, this high-technology oriented systems such as NC, robotics, CAD/CAM, FMS, etc. are often out of keeping with the old production process control, and thus do not result in satisfactory performance. This review paper concerned with these problems and suggests some future directions for production control and development strategy of korean firm's.

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Development of Site Index Equations and Assessment of Productive Areas Based on Environmental Factors for Major Coniferous Tree Species (환경요인에 의한 주요 침엽수종의 지위지수 추정식 개발과 적지 평가)

  • Lee, Yong Seok;Sung, Joo Han;Chun, Jung Hwa;Shin, Man Yong
    • Journal of Korean Society of Forest Science
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    • v.101 no.3
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    • pp.395-404
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    • 2012
  • This study was conducted to develop site index equations and to estimate productive areas for major coniferous species in Korea such as Pinus densiflora Sieb. et. Zucc, Pinus densiflora for. erect, Larix leptolepis and Pinus koraiensis using environmental factors. Using the large data set from both a digital forest site map and a climatic map, a total of 43 environmental factors including 15 climatic variables were regressed on site index by tree species to develop site index equations. Six environmental factors by species were selected as independent variables in the final site index equations. The result showed that the coefficients of determination for site index equations by species were ranged from 0.36 to 0.56, which seem to be relatively low but good enough for the estimation of forest stand productivity. The site index equations developed in this study were also verified by three evaluation statistics such as the estimation bias of model, precision of model, and mean square error of measurement. According to the evaluation statistics, it was found that the site index equations by species fitted well to the test data sets with relatively low bias and variation. As a result, it was concluded that the site index equations by species were well capable of estimating site quality. Based on the site index equations, the productive areas by species for all forest areas were estimated by applying GIS technique to the digital forest site map and climate map. In addition, the distribution of productive areas by species was illustrated by using GIS technique.

A Productivity Analysis of Service Sector of the Southeast Region of Korea (한국 동남권 지역의 서비스산업 생산성 분석)

  • Park, Chang-Suh
    • Journal of the Economic Geographical Society of Korea
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    • v.9 no.2
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    • pp.181-196
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    • 2006
  • This study analyzed the inter-regional productivity performance of Southeast region of Korea, namely, Busan, Daegu, Ulsan, Gyeongbuk, and Gyeongnam for 16 service sectors, which are categorized by two groups, knowledge based service (5 sectors) and non-knowledge based one (11 sectors) for the period of 1997-2004. This study applied the method of Malmquist productivity change index(MPI) to the estimation of spatial productivity. According to the estimation results, firstly, the MPI of service sector has been deteriorated by annually 0.1% on average. However, when we divided the period into 1997-2000 and 2001-2004, the productivity performances of the second period was better than that of the first period, which are the same trend in knowledge based and non-knowledge based service sectors. Secondly, comparing productivity performances by region and sector during the whole period, Daegu has seven sectors which are relatively comparative advantage. and Ulsan and Busan have six and five sectors, respectively, which are relatively comparative advantage.

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Assessment of Productivity and Foodservice Management Practices in Elementary School Foodservices Located in Seoul and KangNung (서울.강릉지역 초등학교 급식소의 급식생산성 분석)

  • 김은경;김은미;강명희;홍완수
    • Korean journal of food and cookery science
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    • v.14 no.1
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    • pp.76-83
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    • 1998
  • The purpose of this study was to evaluate the foodservice management practices and productivity in elementary schools in order to provide basic information for an efficient food service management. This approach was achieved using a variety quantitative and qualitative information including general foodservice management, managerial and operational factors, and the productivity in elementary school foodservice systems. The labor productivity in 28 school foodservice system was assessed and related to a number of influencing variables within the system. The productivity measurement was based upon the total meal equivalents as a ratio of the total direct and non-direct labor hours required to prepare these meals. Twenty-eight elementary schools located in Seoul and Kangnung were surveyed to get data for the variables. Questionnaire and a survey form were mailed. Statistical methods used in this study were descriptive analysis, $\chi$$^2$-test, 1-test and one-way ANOVA analysis. Elementary schools in Seoul were all located in urban areas, whereas elementary schools in Kangnung were in urban areas (40.0%), provincial areas (40.0%) and in isolated areas (20.0%). Total average number of meals including children and staff was 928.2${\pm}$ 650.0 with a yery significant difference (p<0.001) between Seoul and Kangnung. The average cost of school meal in Seoul and Kangnung were 1191.0 won and 1526.2 won, respectively. The result of Pearson Correlation analysis indicated that labor cost per meal, 1-week meal equivalents and meal equivalents per labor were significantly correlated with the productivity.

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The Effects of Creative Climate on the Regional Economic Growth and the Total Factor Productivity of Korean Finns -A Panel Study of Electric and Electronic Finns of the Industrial Complex- (창의성 여건이 지역경제 성장과 기업 생산성에 미치는 영향 연구 - 한국산업공단내 전기.전자기업을 중심으로 -)

  • Gheem, In-Choll;Han, Jae-Myung
    • International Commerce and Information Review
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    • v.12 no.4
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    • pp.67-109
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    • 2010
  • The theory of creative class has shown that the creative people are the key factor of success in regional economic growth. The creative people strengthen the economic competitiveness which is crucial to attract, cultivate and mobilize the resources of that region. In order to examine the theory of creative class for regional economic growth and firm productivity in Korea, this study uses the panel data of 492 Korean firms of the industrial complex producing electic and electronic manufactured goods. They are grouped into 10 industrial complexes among 16 metropolitan areas. Our findings demonstrate that creative class and 3Ts are related to the ratio of creative population density and the regional economic growth. Specifically the creative core class is of more significance to the regional economic growth than the creative professional class or the creative artist class. In our findings the panel analysis of random effects model shows that the talent index of 3Ts as well as the regional climates arc related to the individual firm's total factor productivity. This also reflects a conglomeration of the other regional climates statistically. On the other hand, the research and development expenditure of individual firms shows positive influence for each second consecutive year for the total factor productivity. Sales volume also contributes to the total factor productivity. In conclusion, we recommend that it is important to upgrade the level of creative climates by attracting the creative minds and R&D investment of the enterprises for regional economic growth and firm's total factor productivity.

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Analysis of Efficiency and Productivity for Major Korean Seaports using PCA-DEA model (PCA-DEA 모델을 이용한 국내 주요항만의 효율성과 생산성 분석에 관한 연구)

  • Pham, Thi Quynh Mai;Kim, Hwayoung
    • Journal of Korea Port Economic Association
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    • v.38 no.2
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    • pp.123-138
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    • 2022
  • Korea has been huge investments in its port system, annually upgrading its infrastructure to turn the ports into Asian hub port. However, while Busan port is ranked fifth globally for container throughput, Other Korean ports are ranked much lower. This article applies Data Envelopment Analysis (DEA) and Malmquist Productivity Index (MPI) to evaluate selected major Korean seaports' operational efficiency and productivity from 2010 to 2018. It further integrates Principal Component Analysis (PCA) into DEA, with the PCA-DEA combined model strengthening the basic DEA results, as the discriminatory power weakens when the variable number exceeds the number of Decision Making Units(DMU). Meanwhile, MPI is applied to measure the seaports' productivity over the years. The analyses generate efficiency and productivity rankings for Korean seaports. The results show that except for Gwangyang and Ulsan port, none of the selected seaports is currently efficient enough in their operations. The study also indicates that technological progress has led to impactful changes in the productivity of Korean seaports.

Unveiling the Potential: Exploring NIRv Peak as an Accurate Estimator of Crop Yield at the County Level (군·시도 수준에서의 작물 수확량 추정: 옥수수와 콩에 대한 근적외선 반사율 지수(NIRv) 최댓값의 잠재력 해석)

  • Daewon Kim;Ryoungseob Kwon
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.25 no.3
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    • pp.182-196
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    • 2023
  • Accurate and timely estimation of crop yields is crucial for various purposes, including global food security planning and agricultural policy development. Remote sensing techniques, particularly using vegetation indices (VIs), have show n promise in monitoring and predicting crop conditions. However, traditional VIs such as the normalized difference vegetation index (NDVI) and enhanced vegetation index (EVI) have limitations in capturing rapid changes in vegetation photosynthesis and may not accurately represent crop productivity. An alternative vegetation index, the near-infrared reflectance of vegetation (NIRv), has been proposed as a better predictor of crop yield due to its strong correlation with gross primary productivity (GPP) and its ability to untangle confounding effects in canopies. In this study, we investigated the potential of NIRv in estimating crop yield, specifically for corn and soybean crops in major crop-producing regions in 14 states of the United States. Our results demonstrated a significant correlation between the peak value of NIRv and crop yield/area for both corn and soybean. The correlation w as slightly stronger for soybean than for corn. Moreover, most of the target states exhibited a notable relationship between NIRv peak and yield, with consistent slopes across different states. Furthermore, we observed a distinct pattern in the yearly data, where most values were closely clustered together. However, the year 2012 stood out as an outlier in several states, suggesting unique crop conditions during that period. Based on the established relationships between NIRv peak and yield, we predicted crop yield data for 2022 and evaluated the accuracy of the predictions using the Root Mean Square Percentage Error (RMSPE). Our findings indicate the potential of NIRv peak in estimating crop yield at the county level, with varying accuracy across different counties.

Productivity, Efficiency and Restructuring in Korean Life Insurance Industry (한국생명보험산업의 생산성, 효율성과 구조조정)

  • Kim, Jae-Pil;Jung, Kun-Oh;Lee, Young-Soo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.7 no.6
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    • pp.1337-1347
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    • 2006
  • From the 1990s, Korean Life insurance industry has been experienced an profound impact from various exterior factors. In this study, productivity change in Korean Life insurance industry was measured by the Malmquist productivity change index. Analysis was made based on the balanced panel data from 1990 to 2003 collected from 8 lift insurance firms and 1993 to 1997 from 20 firms. The results show that survived firms' productivity change was higher than other firms.

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