Technical Note—An Adjustment to the Norman-White Approach to Approximating Dynamic Programs

Evan L. Porteus
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Evan L. Porteus: Stanford University, Stanford, California

Operations Research, 1979, vol. 27, issue 6, 1203-1208

Abstract: This note considers an adjustment to the Norman-White approach of approximating stochastic dynamic problems by using expectations. The expectations are used only in approximating the transition mechanism. The original expected returns are left intact. The adjustment also involves eliminating the policy improvement step proposed by Norman and White. The approach appears to work surprising well on the examples considered. It may turn out to be a competitive practical approach to approximating solutions to the ( s , S ) inventory model.

Date: 1979
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