International Journal of Applied Science and Engineering
Published by Chaoyang University of Technology

Hsin-Chieh Wua,1, Toly Chenb, Cheng-Lung Leea, Ying-Lien Leea

Department of Industrial Engineering and Management, Chaoyang University of Technology,  Taichung, Taiwan, R.O.C.
Department of Industrial Engineering and System Management, Feng Chia University, Taichung, Taiwan, R.O.C.


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The purpose of this study was to assess the less-tangible benefits of an ergonomics project performed in a 300-mm wafer fabrication in Taiwan. The studied project was aimed at reducing the risk factors of musculoskeletal disorders (MSDs) faced by the wafer-handling workers. Firstly, the MSDs checklist was used to identify risk factors for the workers. The ergonomic intervention was then conducted. Subsequently, the willingness-to-pay (WTP) survey of the contingent valuation method was performed to quantify less-tangible benefits. The responded WTP results were analyzed to estimate the return on investment of this project, which was 43.6% and large enough to conclude that this project was cost-effectiveness. The marked decreases in the risk-factor found rate and the self-reported MSD rate in the post-intervention period proved that the intervention was effective in reducing the MSD problems. This paper is shown to be a good example to justify the worth of an ergonomics project.

Keywords: Cost effectiveness; musculoskeletal disorders; less-tangible benefit.

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  1. [1] Beevis, D. 2003. Ergonomics–costs and benefits revisited. Applied Ergonomics, 34: 491-496.

  2. [2] Hendrick, H.W. 2003. Determining the cost-benefits of ergonomics projects and factors that lead to their success. Applied Ergonomics, 34: 419-427.

  3. [3] Carson, R.T. 1991. Constructed Markets, in: Braden, J.B., Kolstad, C.D. (Eds.), “Measuring the Demand for Environmental Quality”. Elsevier/North-Holland, Amsterdam.

  4. [4] Cummings, R.G., Brookshire, D.S., and Schulze, W.D. 1986. “Valuing Environmental Goods”, Rowman and Allenheld, New Jersey.

  5. [5] Mitchell, R.C., and Carson, R.T. 1989. “Using survey to value public goods: the contingent valuation method”. in: Resources for the Future, Jone Hopkins University Press, Washington, DC.

  6. [6] Eckerlund, I., Johannesson, M., Johansson,P-O., Tambour, M., and Zethraeus, N. 1995. Value for money? A contingent valuation study of the optimal size of the Swedish health care budget. Health Policy, 34: 135-143.

  7. [7] Hanley, N., Ryan, M., and Wright, R. 2003. Estimating the monetary value of health care: lessons from environmental economic. Health Economics, 12: 3-16.

  8. [8] Choi, K.S., Lee, K.J., and Lee, B.W. 2001. Determining the value of reduction in radiation risk using the contingent valuation method. Annals of Nuclear Energy, 28: 1431-1445.

  9. [9] Wu, H.C., Chen, H.C., and Chen, T. 2006. Establishing a cost-effectiveness assessment model for safety projects. WSEAS Transactions on Systems, 5, 6: 1490-1495.

  10. [10] Occupational Safety and Health Administration (OSHA), 1995. “Draft: Instructions for completing the risk factor checklist”. pp24-32.

  11. [11] Chhokar, R., Engst, C., Miller, A., Robinson, D., Tate, R. B., and Yassi, A. 2005. The three-year economic benefits of a ceiling lift intervention aimed to reduce healthcare worker injuries. Applied Ergonomics, 36: 223-229.

  12. [12] Lewis, R. J., Krawiec, M., Confer, E., Agopsowicz, D., and Crandall, E. 2002. Musculoskeletal disorder worker compensation costs and injuries before and after an office ergonomics program. International Journal of Industrial Ergonomics, 29: 95-99.

  13. [13] Earle-Richardson, G., Jenkins, P., Fulmer, S., Mason, C., Burdick, P., and May, J. 2005. An ergonomic intervention to reduce back strain among apple harvest workers in New York State. Applied Ergonomics, 36: 327-334.

  14. [14] Leighton, D. 2000. Work-based musculoskeletal problems: initiatives to improve health. Ergonomics, 43: 1781- 1788

  15. [15] Melhorn, J. M. 1999. The impact of workplace screening on the occurrence of cumulative trauma disorders and workers’ compensation claims. Journal of Occupational and Environmental Medicine, 41: 84-92.


Accepted: 2010-12-13
Available Online: 2010-12-01

Cite this article:

Wu, H.-C., Chen, T., Lee, C.-L., Lee, Y.-L. 2010. Assessing Less-tangible benefits of an ergonomic project. International Journal of Applied Science and Engineering, 8, 167–178.

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