Game theoretic analysis of the substitutable product inventory problem with random demands.

*(English)*Zbl 0638.90031Summary: This article uses game theoretic concepts to analyze the inventory problem with two substitutable products having random demands. It is assumed that the two decision makers (players) who make ordering decisions know the substitution rates and the demand densities for both products. Since each player’s decision affects the other’s single-period expected profit, game theory is used to find the order quantities when the players use a Nash strategy (i.e., they act rationally). We prove the existence and uniqueness of the Nash solution. It is also shown that when one of the players acts irrationally for the sole purpose of inflicting maximum damage on the other, the maximin strategy for the latter reduces to using the solution for the classical single-period inventory problem. We also discuss the cooperative game and prove that the players always gain if they cooperate and maximize a joint objective function.

Reviewer: Reviewer (Berlin)

##### MSC:

90B05 | Inventory, storage, reservoirs |

91A40 | Other game-theoretic models |

91A05 | 2-person games |

91A10 | Noncooperative games |

91A12 | Cooperative games |

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\textit{M. Parlar}, Nav. Res. Logist. 35, No. 3, 397--409 (1988; Zbl 0638.90031)

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