Author

Yi-Chun Akchen

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Preprint Aug 2026

Do You Have My Size In Stock? Assortment and Inventory Optimization Under the Consider-Fit-Then-Choose Choice Model

In apparel retail and other applications, when a customer's preferred size is unavailable, demand may shift to nearby sizes. This substitution creates new assortment and inventory optimization challenges by coupling product availability and demand across sizes. We introduce the consider-fit-then-choose (CFTC) model to...

Yi-Chun Akchen, K. Çakiroğlu, Felipe Caro et al. · 0 citations

Preprint Sep 2026

Dynamic Service Recommendation with Congestion-Dependent Joining: Near-Optimal and Constant-Factor Approximation Algorithms

Modern service platforms often provide customers with real-time congestion information, such as anticipated waiting times, before they decide whether to use a service. This creates an intertemporal tradeoff in service recommendation: directing a customer to a service may generate immediate value, but the resulting cong...

Yi-Chun Akchen, Sena Asli Bozkurt, Chen Lin · 0 citations