Setting the Study Period

  • Rosalie T. Ruegg
  • Harold E. Marshall


The study period defines the time over which costs and benefits are considered in a decision. Setting it correctly is critical to obtaining a valid solution. In this section we state the criterion for setting it, identify factors which determine its length, give examples of setting study periods under a variety of circumstances, discuss the need for replacements and residuals, and, in summary, provide a set of guidelines.


Time Horizon Cash Flow Wood Flooring Individual Investor Project Life 
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  1. Ruegg, Rosalie T. 1989. Benefits, costs, and time perspectives. Paper presented at the policy forum, Making Housing More Affordable through Energy Efficiency, 4–6 October 1989, in Washington, DC.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Rosalie T. Ruegg
  • Harold E. Marshall

There are no affiliations available

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