Abstract
Management of the firm implementing revenue management has many decisions to make regarding the details of the implementation. In this article we examine seven different decisions surrounding the implementation of aggressive ‘revenue management’ pricing in the context of a firm facing a single period stochastic pricing and stocking problem. We demonstrate through use of an example, that some of the decisions have a large financial impact, while other options that require considerable computational work to implement may provide little financial impact.
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Acknowledgements
We gratefully acknowledge financial support from the Natural Sciences and Engineering Council of Canada and the Richard Ivey School of Business.
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Appendix A
Appendix A
The optimum prices for the N-price problem include the deterministic optimum prices for the first N−1 intervals
Consider the case of potentially N different prices during the sales period under additive forecast errors. The firm initially sets a price p 1 and at the end of the first review period sets a price p 2, which may be the same as p 1, (but does not reorder product) and at the second price review point sets a price p 3 and so on for N potentially different prices during the sales period.
We assume:
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No reordering of product and no holding cost during the period.
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Demand for review period (i) when price p i is set is independent with pdf f i (q i ∣p i ).
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The probability of the firm stocking out before the last price review point is essentially zero.
For notational convenience, we define the random variable Q k =∑ k q i =∑ k E(q i )+∑ k ξ i and I k as the inventory starting the kth interval where I k =I−Q k−1>0. We denote the sum of the first k error terms (∑ k ξ i ) as X k and the pdf of Q k as (.).
Under these conditions, the expected contribution is
p N is determined at the final price setting point when inventory (I N ) is known. The necessary condition for a maximum of (A1) w.r.t. p N is given by (2A) with I=I N =I−Q N−1:
We note from (A2) that the value of p N (=p * N ) that maximizes (A2) is a function of the optimum starting inventory (I *) and actual demand for periods 1, 2, …, N−1.
The firm chooses I and p i , (i=1, 2, …, N−1) to maximize (A1). The necessary condition for a maximum w.r.t. I is that
Noting Q N−1=E(Q N−1)+X N−1, we write
as G[X N−1, I] and have
since
Now
But ∂p N /∂I is independent of ξ N , hence
However, from (A2) the necessary condition for the maximum w.r.t. p N this becomes
And the necessary condition (A3) becomes
Rearranging
The l.h.s of (A5) is the conditional probability of no stockout given Q N−1 {or } multiplied by the probability of Q N−1 and integrated over all values of Q N−1. It is, therefore, the expected probability of no stockout. We denote this term by F N (I N ) where F N (·) is the cdf of demand in period N.
Necessary condition (A5) then becomes
The necessary condition for a maximum of (A1) w.r.t. p i i=1, 2, …(N−1) is that
Leading to the necessary condition
Noting ∂p N /∂ i does not depend on the error terms ξ N and X N−1 (A7) becomes
Making use of condition (A2), this becomes
Using condition (A2) gives
Note that and so (A8) is identical to the necessary condition for deterministic contribution maximization
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Bell, P., Zhang, M. Management decision-making in the single period optimum pricing problem. J Oper Res Soc 57, 377–388 (2006). https://doi.org/10.1057/palgrave.jors.2601993
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DOI: https://doi.org/10.1057/palgrave.jors.2601993