About

I am an Assistant Professor in the Department of Industrial Engineering at Bilkent University.

My research sits at the interface of optimization and economic theory, with a focus on robust and distributionally robust mechanism design, auction theory, bilateral trade, and prophet inequalities. I am particularly interested in problems where agents have private information and the designer must act under uncertainty about the underlying distribution of types.

I received my Ph.D. in Industrial Engineering from Bilkent University, under the supervision of Prof. Mustafa Ç. Pınar and Prof. Nuh Aygün Dalkıran. During my doctoral studies I was a visiting researcher at the University of Pennsylvania, hosted by Prof. Rakesh Vohra. Prior to joining Bilkent, I was a postdoctoral researcher at the Chair of Decision Sciences & Systems, Technical University of Munich, working with Prof. Martin Bichler.

Publications

• 2025
  Distributionally Robust Optimal Allocation with Costly Verification

  H. İ. Bayrak, Ç. Koçyiğit, D. Kuhn, M. Ç. Pınar

  Operations Research, January 2025
• 2022
  Nonexclusive Competition for a Freelancer under Adverse Selection

  H. İ. Bayrak, N. A. Dalkıran

  Journal of Mathematical Economics 103 (2022), 102773
• 2019
  Bilateral Trade with Risk Averse Intermediary using Linear Network Optimization

  H. İ. Bayrak, K. Kargar, M. Ç. Pınar

  Networks 74.4 (2019), 325–332
• 2018
  Robust Bilateral Trade with Discrete Types

  K. Kargar, H. İ. Bayrak, M. Ç. Pınar

  EURO Journal on Computational Optimization 6.4 (2018), 367–393
• 2018
  Robust Auction Design Under Multiple Priors by Linear and Integer Programming

  Ç. Koçyiğit, H. İ. Bayrak, M. Ç. Pınar

  Annals of Operations Research 260.1–2 (2018), 233–253
• 2017
  Optimal Allocation with Costly Inspection and Discrete Types under Ambiguity

  H. İ. Bayrak, K. Güler, M. Ç. Pınar

  Optimization Methods and Software 32.4 (2017), 699–718
• 2016
  Generalized Second Price Auction is Optimal for Discrete Types

  H. İ. Bayrak, M. Ç. Pınar

  Economics Letters 141 (2016), 35–38

Working Papers

• Distributionally Robust Mechanism Design with Deferred Inspection
  H. İ. Bayrak, M. Bichler
  Major revision at Operations Research · SAGT 2026 · arXiv
• Robust Clearing and Pricing of Electricity Markets
  H. İ. Bayrak, M. Bichler, T. Dobos
  Submitted to Operations Research, June 2026
• Prophet Inequalities via Linear Programming
  H. İ. Bayrak, R. Vohra, M. Ç. Pınar
  Submitted to Operations Research, June 2026

Teaching

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