• Title/Summary/Keyword: productivity

Search Result 10,649, Processing Time 0.043 seconds

The Study on the Analysis of Factors Decreasing Construction Labor-Productivity Using AHP Method (AHP기법을 이용한 건설노동생산성 저하요인 분석에 관한 연구)

  • Pyo Young-Min;Bae Soo-Yong;Ryu Hyoung-Han;Lee Sang-Beom
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2005.05a
    • /
    • pp.141-147
    • /
    • 2005
  • Usually, processing whole project or a part of frame work delays due to acceleration, changing orders, management, characters of project. overtime, worker crowding, early occupation in the field of construction. Through a whole project, these factors cause decreasing construction labor-productivity which is the most dependent in business of construction. These kind of decreasing of construction labor-productivity cause many negative effects, just as extension of time, increasing cost in project of construction. Regardless of characters of construction or decreasing labor-productivity, extension of time is a incident which needs acceleration, also it cause a high possibility of claim and dispute. The productivity has just a broad meaning in business of construction. That's why it's difficult to apply in the field of construction. Especially, factors increasing or decreasing labor-productivity is defined by analysis of working as qualitative and outlined evaluation. However, study of the each factor decreasing construction labor-productivity analysis has not researched, because of difficulty of systematic measurement and management. The existed studies about management of productivity are just focused on estimation of productivity, not on evaluation of productivity. It was true that I couldn't examine clearly about the analysis of how much important per each the factor which have influence on labor-productivity because of the characteristic as qualitative that the labor productivity have On this study, i tried to get the factors decreasing of labor- productivity with gathering opinions of panels of expert's studies about the factors decreasing of labor-productivity on project of construction through Delphi method and i evaluated the result factors as quantitatively and subjectively about importance of factors decreasing construction labor-productivity Analysis, using AHP Method by Saaty. Also, using Delphi and AHP method, 1 suggest substantiated method qualitative factors are measured by quantitative criteria.

  • PDF

A Fundamental Study on International Comparison of Labor Productivity in Construction Industry (건설업 노동생산성의 국제비교에 관한 기초 연구)

  • Park, Hwan-Pyo
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2018.05a
    • /
    • pp.310-311
    • /
    • 2018
  • This study compared the labor productivity of the construction industry to the manufacturing and service industries. In addition, It analyzed the construction labor productivity gap of the G7 countries based on data from the Korean Productivity Center. A comparative analysis of construction labor productivity between manufacturing and service industries, based on statistics from the National Statistical Office, revealed a relatively low level and trend of continued decline. In addition, a comparative analysis of the productivity of construction workers in the major G7 countries found that the difference in productivity is very large, with an average of 65.3 %. Therefore, domestic construction companies and the government should prepare Improvement measures to improve productivity by investing in technology development to increase labor productivity and improving the production system of the construction industry.

  • PDF

Union Effects on Productivity : Literature Survey (노동조합의 생산성효과(I))

  • 남상섭
    • The Journal of Information Technology
    • /
    • v.2 no.1
    • /
    • pp.15-34
    • /
    • 1999
  • The purpose of this paper is to survey existing literature and empirical studies about the effect of unions on productivity and productivity growth in US and British. Evidence regarding union effects on productivity is incomplete in the studies surveyed in this paper. Unions have a positive effect on productivity in US, but the most of studies in British show that unions have a negative effect. But the direction and magnitude of union effects on productivity growth cannot be predicted from economic theory. It may be that there is no unitary relationship between unions and productivity growth. The comprehensive conclusion about the effects of unions on productivity growth cannot be drawn from the studies surveyed in this paper. The question of whether unions have a positive effect or negative effect on productivity and productivity growth is an empirical issue.

  • PDF

A Scientific Approach for the Design and Service Productivity (디자인과 서비스생산성에 대한 과학적 접근)

  • Kim, Hyun-Soo
    • Journal of Information Technology Services
    • /
    • v.7 no.4
    • /
    • pp.269-285
    • /
    • 2008
  • Design productivity can't be easily measured since there are so many different design productivity factors but such a few meaningful design product units. It's very difficult to evaluate the performance of design activities. Performance measures are not defined easily and are not measured correctly in many cases. So, in this paper the value added productivity is used to measure and analyze design productivity. Some issues are analysed to assess real productivity level of Korean service industry. And then we propose a few ways to Improve design productivity including the use of scientific approach at design processes and the change of the industry structure. It seems that the higher the level of IT(Information Technology) usage at a design industry is, the higher the design productivity is. Further research will be needed to investigate scientific approaches to increase design productivity.

The Theoretical Comparison of Malmquist and Luenberg Productivity Indices & Empirical Analysis (Malmquist 생산성지수와 Luenberger 생산성지수의 이론적 관계와 실증적 분석)

  • Park, Hyun Suk;Yang, Dong Hyun
    • Health Policy and Management
    • /
    • v.25 no.2
    • /
    • pp.118-128
    • /
    • 2015
  • Background: We measured productivity changes of regional public hospitals using both global Malmquist productivity index-based on global production possibility set over all the periods-and the traditional Malmquist productivity index and analyzed the factors of productivity change. Methods: The data used in this study is two annual inputs and two annual outputs of 32 regional public hospitals in Korea from 2005 to 2009 and the results such as distances and Malmquist productivity index and global Malmquist productivity index are obtained by an R program written for this study. Results: The results can be summarized as follows. Firstly, technical efficiencies of regional public hospitals are affected largely by scale efficiency than pure technical efficiency. Second, productivity progressed and technological change has more significant influence on productivity advance over the period between 2005 and 2009. Third, the circularity problem of the traditional Malmquist index is confirmed, and so the global Malmquist index without this problem are valid for the analysis. Conclusion: Though this study also has some limitations with the data of regional public hospitals with a short time span, it is the first study of hospitals using global Malmquist productivity index and later it can be expanded to private hospitals and longer time periods.

Labor Productivity Model for Reinforced Concrete Construction Projects

  • Ho Myun Jang;Kyong Hoon Kim;Sang Hyeon Kim;Kyung Hwan Kim;Jae Jun Kim
    • International conference on construction engineering and project management
    • /
    • 2009.05a
    • /
    • pp.983-989
    • /
    • 2009
  • This study aims to systematically identify direct and indirect factors that influence labor productivity and to build a model that mathematically quantifies them so as to efficiently manage and increase labor productivity in the construction work. This study was performed based on the productivity model for workers in reinforced concrete construction projects, because it aims to establish a general construction labor productivity model that reflects many factors that influence labor productivity. Using statistical analysis, we found that the components that significantly influence productivity were the worker component, the work characteristic component, the work technique component, the work management component, the equipment & materials component, and the work guide component, while the work delay components did not significantly influence productivity. In addition, a priority analysis was performed based on the components that showed statistically significant effects. The results of the analysis indicated that the influence of work management component and the work technique component is more than that of the worker component and the work characteristic component. The construction labor productivity model that was formulated in this study could be used for the determining the standard productivity during the initial planning stage, so the best strategy for increasing labor productivity could be formulated.

  • PDF

The Status of Productivity & Quality level and the Productivity Improvement in Korean Manufacturing Industry (우리 제조업의 생산성 및 품질수준현황과 그 향상)

  • 신용백
    • Journal of the Korean Professional Engineers Association
    • /
    • v.32 no.6
    • /
    • pp.28-34
    • /
    • 1999
  • The trouble of business management of the manufacturing industrial companies in korea are constituted by that average 26∼29% of production management in the worst trouble of business management from 1973 to 1997. A movement for higher productivity and quality is very important of the basis for industry society prosperity. Continuous productivity improvement have a right understanding of a conception of productivity and its effect that are removed an act before the trouble of higher productivity enforcement. The higher productivity is used by way of a welfare society.

  • PDF

A Study on Simulation for Combined Productivity Analysis at Container Terminal (컨테이너터미널의 결합생산성 분석을 위한 시뮬레이션 연구)

  • 최용석;하태영
    • Proceedings of the Korea Society for Simulation Conference
    • /
    • 2004.05a
    • /
    • pp.63-68
    • /
    • 2004
  • The objective of this paper is to analyze the combined productivity at container terminal. We present a mode3 for combined productivity that perform the container transportation between apron and yard. Usually, the efficiency of container terminal is evaluated by productivity of container cranes at apron, but there are other equipment such as transport vehicles and yard cranes. Therefore, a method that can estimate the combined productivity of equipment of container terminal is required. We performed various simulation experiment and analyzed combined productivity to estimate the required number of equipment.

  • PDF

Aggregate Productivity Growth in Korean Manufacturing: The Role of Young Plants

  • KIM, MINHO
    • KDI Journal of Economic Policy
    • /
    • v.39 no.4
    • /
    • pp.1-23
    • /
    • 2017
  • I measure aggregate productivity growth in manufacturing between 1995 and 2013 as defined by Petrin and Levinsohn (2012). I decompose aggregate productivity growth into technical efficiency improvements, resource reallocations, and net entry effects. I find that aggregate productivity growth slows down after 2004 and that the rapid drop in technical efficiency growth contributed most to the decline. In this paper, I focus on the role of young plants with regard to productivity growth of Korean manufacturing. I show that young plants account for nearly half of APG (48%), while their value-added share is 14 percent on average between 1995 and 2013. I find that productivity growth at young plants has been declining for the last ten years. The lower growth of continuing young plants contributes to this trend. These results stress the important role of young plants in aggregate productivity growth and imply that understanding the dynamics of young plants is necessary to form effective start-up policies.

A Comparative Study on Productivity of the Single PPM Quality Certification Company by using the Bootstrapped Malmquist Productivity Indices (부트스트랩 맘퀴스트 생산성지수를 이용한 Single PPM 인증기업의 생산성 비교 연구)

  • Song, Gwang-Seok;Yoo, Han-Joo
    • Proceedings of the Korean Society for Quality Management Conference
    • /
    • 2010.04a
    • /
    • pp.33-48
    • /
    • 2010
  • The purpose of this study is to empirically analyze the productivity change of the 10 Single PPM Certification Company in the 3 Industry(Electronics, Motor-Parts, Machines). In this study, Productivity change over the time in Korean small and medium sized firms in the 3 industries by the bootstrapped Malmquist Productivity Index(MPI). The traditional Malmquist Productivity Index(MPI) and Data Envelopment they could lead to wrong evaluations of the efficiency and productivity scores. In this paper, DEA and a MPI are combined with a bootstrap method in order to provide statistical inferences that analyze the performance of the Single PPM Certification Company. The data cover the period between 2004 and 2007. The result of this paper reveals : 1) The electronic industries(Motor-Parts, Machines). 2) average productivity Progress of the 7DMU(Electronics), 1DMU(Motor-Parts) and none(Machines).

  • PDF