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Research Interests

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Methodology

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Decisions under Uncertainty and Distributionally Robust Optimization

Data-Driven Optimization

Game Theory

 

Applications

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Healthcare and Humanitarian Operations

Supply Chain Management

Innovative Business Models

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Published Papers

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  • Gao, S. Y., He, Y., Zhang, R., Zheng, Z., Lam, S. W., and Tan, E., 2025. Optimizing Initial Screening for Colorectal Cancer Detection with Adherence Behavior. Management Science,  71(9), 7516–7536. [Link]

    • Pierskalla Best Paper Award Finalist, 2025.

    • ​POMS HK Best Student Paper Competition, 1st Place, 2022.

  • Lu, L., Fang, X., Gao, S.Y., Kazaz, B., 2024. Converting Counterfeiters in Emerging Markets to Authorized Suppliers: A New Anti-Counterfeiting Measure. Production and Operations Management, 34(9), 2910–2930. [Link]

  • Zhu, T., Yeo, N., Gao, S. Y., and Loke, G., 2023. Inventory-Responsive Donor-Management Policy: A Tandem Queueing Network Model.  Manufacturing & Service Operations Management, , 25(4), 1585–1602. [Link]

  • Cheng, G., Gao, S. Y., Yuan, Y., Zhang, C., and Zheng, Z., 2022. On the Test Accuracy and Effective Control of the COVID-19 Pandemic: A Case Study in Singapore. INFORMS Journal on Applied Analytics, 52(6), pp.524-538. [Link]

  • Gao, S.Y., Simchi-Levi, D., Teo, C.P., Yan, Z., 2019. Disruption Risk Mitigation in Supply Chains - The Risk Exposure Index Revisited. Operations Research. [Link]

  • Yan, Z., Gao, S.Y., and Teo, C.P., 2018. On the Design of Sparse but Efficient Structures in Operations. Management Science, 64(7), 3421–3445. [Link]​​

  • Gao, S.Y., Lim, W.S. and Tang, C., 2017. Entry of Copycats of Luxury Brands. Marketing Science, 36(2), pp.272-289. [Link]

  • Gao, S.Y., Lim, W.S. and Ye, Z., 2023. Optimal Channel Strategy of Luxury Brands in the Presence of Online Marketplace and Copycats. European Journal of Operational Research, 308(2), pp.709-721. [Link]

  • Gao, S.Y., Lim, W.S. and Tang, C., 2017. The Impact of the Potential Entry of Copycats: Entry Conditions, Consumer Welfare, and Social Welfare. Decision Sciences, 48(4), 594–624.[Link]

  • Gao, S.Y., Sun, J., and Wu, S. Y., 2016. A Semi-Infinite Programming Approach to Two-stage Stochastic Linear Programs with High-order Moment Constraints. Optimization Letters, 12, 1237–1247. [Link]

  • Gao, S.Y., Kong, L. and Sun, J., 2014. Robust Two-stage Stochastic Linear Programs with Moment Constraints. Optimization, 63(6), pp.829-837. [Link]

Working Papers

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  • Gao, S. Y., Teo, C. P., and Zheng, H., Homeland Security Games: The Value of Flexible Redeployment. Major Revision in Operations Research.

  • Wang, Z., Bi, S., Gao, S. Y., and Lyu, G., Capacity Configuration for Emergency Supply Chains: A Time-to-Survive Perspective. Major Revision at Manufacturing & Service Operations Management.

  • Lu, L., Boyabatli, O., Gao, S. Y., Flexible vs. Dedicated Technology Choice in the Presence of Multiproduct Subscription Programs. Reject and Resubmit at Management Science. 

  • Wang, X., Zhu, Y., Gao, S. Y., Zheng, Z., and Lam, S. W., Designing Information Sharing for Cancer Screening Promotion: Evidence from a Randomized Controlled Trial. Major Revision at Production and Operations Management.

  • Sun, L., Gao, S. Y., Teo, C. P., Wang, C., Kataria, R., Optimizing Liability Limits Under Rare Payouts. Reject and Resubmit at Operations Research. 

  • Liu, Y., Gao, S. Y., Zheng, Z., and Zhang, L., A Lifting-and-Splitting Framework for Risk-Averse Distributionally Robust Multi-Item Newsvendor Problems. Under Review. 

  • Liu, Y., Gao, S. Y., and Zheng, Z., Data-Driven Markov Decision Processes with Heterogeneous Groups: Regret Guarantees and Fairness Improvement via Robust Optimization. Under Preparation. 

  • Zeng, Y., and Gao, S. Y., Distributional Inverse Optimization. Under Preparation. 

  • Gao, S. Y., Hu, K., Liang, Y., Teo, C. P., and Zhu, Y., Rethinking Appointment Scheduling: Addressing Counselor Burnout and Improving Patient Outcomes. Under Preparation. 

  • Bandi, C., Gao, S. Y., Moorthy, R., Tan, B. K., and Teo, C. P. Optimal Scheduling and Policy Design of Two-Dose Vaccination Rollout. Under Preparation. 

    • Previously circulated under the title “Vaccine Appointment Scheduling: The Second Dose Challenge.”​

  • Gao, S. Y., He, Y., Li, De., Ma, B., Yeo, N., and Zheng., Z., On the Adherence of Colorectal Cancer Screening Policies – A Survey Study in Singapore. Under Preparation.

  • Gao, S. Y., Tang, X., and Yuan, Y., Max-Min Bilinear Completely Positive Programs: A Semidefinite Relaxation with Tightness Guarantees. Under Preparation.

  • Gao, S.  Y., and Teo, C. P.,  Data-Driven Robust Incomplete Information Games and Bounded Rationality.  Under Preparation.

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