Calculating hourly cost rates in project-based industries – part 2; cost management

Jan Emblemsvag, Gary Cokins


Hourly cost rates are crucial project costing due to the substantial proportion of labor cost in projects. Yet, there is little published about calculating hourly cost rates, and it is a contentious topic in corporations. Therefore, an approach is provided in this paper that will improve the calculation of hourly cost rates. It is based on a novel approach to Activity-Based Costing (ABC) and a revised version of the CAM-I Capacity Model which is adopted to project-based industries. Both an example and a case are provided to allow detailed discussions.


Capacity management; Earned Value; Activity-Based Costing; subcontracting; shipbuilding; construction; fabrication


Cokins, G., A. Stratton and J. Helbling (1992). An ABC Manager's Primer. New York, McGraw-Hill.p.

Cokins, G. (1996). Activity-Based Cost Management - Making it Work. Boston, MA, McGraw-Hill.p.

Cokins, G. (2001). Activity-Based Cost Management: An Executive's Guide. Hoboken, NJ, Wiley.p. 386.

Cooper, R. (1989). "The Rise of Activity-Based Costing - Part Three: How Many Cost Drivers Do You Need, and How Do You Select Them." Journal of Cost Management for the Manufacturing Industry(Winter):pp. 34 - 46.

Eden, Y. and B. Ronen (1991). "The Hourly Rate: Myth and Reality." Industrial Management 33(September/October):pp. 28-30.

Edwards, J. A., Ed. (1998). Handbook of Cost Management. Boston, MA, Warren, Gorham & Lamont.p.

Emblemsvåg, J. (2003). Life-Cycle Costing: Using Activity-Based Costing and Monte Carlo Methods to Manage Future Costs and Risks. Hoboken, NJ, John Wiley & Sons.p. 320.

Emblemsvåg, J. (2004). "Activity-Based Costing and Economic Profit - Why, What and How." Cost Management 18(July/August):pp. 38-46.

Emblemsvåg, J. (2014a). "Lean project planning: Using lean principles in project planning." International Journal of Construction Project Management 6(2):pp. 185-207.

Emblemsvåg, J. (2014b). "Lean project planning in Shipbuilding." Journal of Ship Production and Design 30(2):pp. 79-88.

Emblemsvåg, J. and G. Cokins (2020). “Calculating hourly cost rates in project-based industries – part 1; capacity modeling.” The Journal of Modern Pproject Management 8(1): X-Y.

Fleming, Q. W. and J. M. Koppelman (2005). Earned Value Project Management. Newtown Square, PA, Project Management Institute.p. 232.

Flyvbjerg, B., N. Bruzelius and W. Rothengatter (2012). Megaprojects and risk: An Anatomy of Ambition. Cambridge, Cambridge University Press.p. 207.

Fox, R. (1986). "Cost Accounting: Asset or Liability." Journal of Accounting and EDP(Winter):pp. 31 - 37.

Goldratt, E. M. (1983). Cost Accounting Number One Enemy of Productivity. Proceeding of APICS Conference.

Johnson, H. T. and R. S. Kaplan (1987). Relevance Lost: The Rise and Fall of Management Accounting. Boston, MA, Harvard Business School Press.p. 269.

Johnson, H. T. (1992). "It's Time to Stop Overselling Activity-Based Concepts." Management Accounting(September):pp. 26-35.

Kaplan, R. S. (1984). "Yesterday's Accounting Undermines Production." Harvard Business Review(July/August):pp. 95 - 101.

Kaplan, R. S. and R. Cooper (1999). Cost & Effect: Using Integrated Cost Systems to Drive Profitability and Performance. Boston, MA, Harvard Business School Press,.p. 357.

Kaplan, R. S. and S. R. Anderson (2007). Time-Driven Activity-Based Costing: A Simpler and More Powerful Path to Higher Profits. Boston, MA, Harvard Business Review Press.p. 288.

Kim, Y.-W. and G. Ballard (2001). Activity-based costing and its application to lean construction. 9th annual conference of the International Group for Lean Construction, National University of Singapore, August, 2001. Singapore:pp.

Koskela, L. (1992). Application of the New Production Philosophy to Construction. Standford, CA, Stanford University, Center for Integrated Facility Engineering.p. 75.

Kummer, M. (2017). Calculation of the Labor Consumption Rate for Shuttering Works whilst Considering Uncertainties. Resilient Structures and Sustainable Construction - The Ninth International Structural Engineering and Construction Conference (ISEC-9). E. Pellicer, J. M. Adamet al. Valencia, Spain, International Structural Engineering and Construction (ISEC) Press:pp.

McIllhattan, R. (1987). "The Path to Total Cost Management." Journal of Cost Management of the Manufacturing Industry(Summer):pp. 5 - 10.

McNair, C. J. and R. Vangermeersch (1998). Total Capacity Management: Optimizing at the Operational, Tactical, and Strategic Levels. Boca Raton, FL, St. Lucie Press.p. 352.

Morrow, M. and G. Ashworth (1994). "An Evolving Framework for Activity-Based Approaches." Management Accounting (UK)(February):pp. 32 - 36.

O'Guin, M. (1990). "Focus The Factory With Activity-Based Costing." Management Accounting 72(February):pp. 36-41.

PMI (2008). A Guide to the Project Management Body Of Knowledge (PMBOK Guide). Newtown Square, PA, Project Management Institute.p. 467.

Powner, D. A. (2008). OMB And Agencies Need to Improve Planning, Management, and Oversight of Projects Totaling Billions of Dollars. Washington DC, United States Government Accountability Office (GAO).p. 50.

Raz, T. and D. Elnathan (1999). "Activity based costing for projects." International Journal of Project Management 17(1):pp. 61-67.

Turney, P. B. B. (1991). Common Cents: The ABC Performance Breakthrough - How To Succeed With Activity-Based Costing. Hillboro, OR, Cost Technology.p. 322.

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