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Variance vs. Standard Deviation: Variability Reduction Through Operations Reversal


  • Roman Kapuscinski

    (Business School, University of Michigan, Ann Arbor, Michigan 48109)

  • Sridhar Tayur

    (Graduate School of Industrial Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-3890)


We show that if the analysis of the model of Lee and Tang used standard deviation rather than variance, some nonintuitive predictions of their analysis would be eliminated.

Suggested Citation

  • Roman Kapuscinski & Sridhar Tayur, 1999. "Variance vs. Standard Deviation: Variability Reduction Through Operations Reversal," Management Science, INFORMS, vol. 45(5), pages 765-767, May.
  • Handle: RePEc:inm:ormnsc:v:45:y:1999:i:5:p:765-767

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    References listed on IDEAS

    1. Hau L. Lee & Christopher S. Tang, 1998. "Variability Reduction Through Operations Reversal," Management Science, INFORMS, vol. 44(2), pages 162-172, February.
    2. Guillermo Gallego, 1998. "New Bounds and Heuristics for (Q, r) Policies," Management Science, INFORMS, vol. 44(2), pages 219-233, February.
    3. Richard Ehrhardt, 1979. "The Power Approximation for Computing (s, S) Inventory Policies," Management Science, INFORMS, vol. 25(8), pages 777-786, August.
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    Cited by:

    1. Yossi Aviv & Awi Federgruen, 2001. "Capacitated Multi-Item Inventory Systems with Random and Seasonally Fluctuating Demands: Implications for Postponement Strategies," Management Science, INFORMS, vol. 47(4), pages 512-531, April.
    2. Nikhil Jain & Anand Paul, 2001. "A Generalized Model of Operations Reversal for Fashion Goods," Management Science, INFORMS, vol. 47(4), pages 595-600, April.
    3. Brun, Alessandro & Capra, Eugenio & Miragliotta, Giovanni, 2009. "VRP revisited: The impact of behavioural costs in balancing standardisation and variety," International Journal of Production Economics, Elsevier, vol. 117(1), pages 16-29, January.
    4. Cheung, Ki Ling & Song, Jing-Sheng & Zhang, Yue, 2017. "Cost reduction through operations reversal," European Journal of Operational Research, Elsevier, vol. 259(1), pages 100-112.
    5. Alfaro, José A. & Corbett, Charles J., 2000. "The value of SKU rationalization: the pooling effect under suboptimal inventory policies," DEE - Working Papers. Business Economics. WB 9917, Universidad Carlos III de Madrid. Departamento de Economía de la Empresa.


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