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Inventories, Stock-Outs, and Production Smoothing

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  • Andrew B. Abel

Abstract

If stock-outs are ignored and if demand shocks are additive, then optimal behavior requires that the marginal cost of production (MC) be equated with the expected marginal revenue of increasing expected sales by one unit (EMR). However,with more general demand shocks (and still ignoring stock-outs), the excess of MC over EMP has the same signas the covariance of the slope of the demand curve and the marginal valuation of inventory. The equality of EMR and MC is also broken by taking account of stock-outs, even if demand shocks are additive. If there is a production lag, then taking account of stock-outs implies that optimal behavior will be characterized by production smoothing even if the cost of production is linear. Two alternative definitions of production smoothing are presented and optimal behavior in the presence of stock-outs displays each type of smoothing.

Suggested Citation

  • Andrew B. Abel, 1985. "Inventories, Stock-Outs, and Production Smoothing," NBER Working Papers 1563, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:1563
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