When is model complexity too much? Illustrating the benefits of simple models with Hughes' salvo equations

Thomas W. Lucas and John E. McGunnigle

Naval Research Logistics (NRL), 2003, vol. 50, issue 3, 197-217

Abstract: The simulations that many defense analysts rely upon in their studies continue to grow in size and complexity. This paper contrasts the guidance that the authors have received—from some of the giants of military operations research—with the current practice. In particular, the analytic utility of Hughes' simple salvo equations is compared with that of the complex Joint Warfighting System (JWARS), with respect to JWARS' key performance parameters. The comparison suggests that a family of analytic tools supports the best analyses. It follows that smaller, more agile, and transparent models, such as Hughes' salvo equations, are underutilized in defense analyses. We believe that these models should receive more attention, use, and funding. To illustrate this point, this paper uses two very simple models (by modern standards) to rapidly generate insights on the value of information relative to force strength. © 2003 Wiley Periodicals, Inc. Naval Research Logistics, 2003

Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:wly:navres:v:50:y:2003:i:3:p:197-217

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