The Top-Dog Index: a new measurement for the demand consistency of the size distribution in pre-pack orders for a fashion discounter with many small branches
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We propose the new Top-Dog-Index, a measure for the branch-dependent historic deviation of the supply data of apparel sizes from the sales data of a fashion discounter. Our approach individually measures for each branch the scarcest and the amplest sizes, aggregated over all products. This measurement can iteratively be used to adapt the size distributions in the pre-pack orders for the future. A real-world blind study shows the potential of this distribution free heuristic optimization approach: The gross yield measured in percent of gross value was almost one percentage point higher in the test-group branches than in the control-group branches.
KeywordsRevenue management Size optimization Demand forecasting Top-Dog-Index Field study Parallel blind testing
Mathematics Subject ClassificationPrimary: 90B05 Secondary: 90B90
This research was supported by the Bayerische Forschungsstiftung, Project DISPO—A Decision Support for the Integrated Size and Price Optimization. The authors thank Lutz Schade and Tobias Metze as well as an anonymous referee for valuable comments on an earlier version of the manuscript.
- Chan, L. M. A., Max Shen, Z. J., Simchi-Levi, D., & Swann, J. L. (2006). Coordination of pricing and inventory decisions: A survey and classification. In D. Simchi-Levi, S. D. Wu, Z. J. Max Shen (Eds.), Handbook of quantitative supply chain analysis: Modeling in the e-business era, Chap. 14 (pp. 335–392). Dordrecht: Kluwer.Google Scholar
- Garro, A. (2011). A new product forecasting and distribution optimization: A case study at Zara PhD thesis, MIT, Massachusetts, USA, 194 pp.Google Scholar
- Kießling, M., Kurz, S., & Rambau, J. (2012). The integrated size and price optimization problem. Numerical Algebra, Control and Optimization, 2(4), 669–693.Google Scholar
- Vulcano, G., van Ryzin, G., & Ratcliff, R. (2012). Estimating primary demand for substitutable products from sales transaction data. Operations Research, 38(6), 7373–7379.Google Scholar
- Yu, Y., Choi, T.-M., & Hui, C.-L. (2011). An intelligent fast sales forecasting model for fashion products. Expert Systems with Applications, 60(2), 313–334.Google Scholar
- Zhou, J., & Xu, Q. (2008). Analysis of system dynamics model in garment supply chain. Journal of Textile Research, 29(12), 122–125.Google Scholar