Research

Papers

[1]  Hyun-soo Ahn, Izak Duenyas, and Rachel Zhang. Optimal stochastic scheduling of a two-stage tandem queue with parallel servers. Advances in Applied Probability, 31, 1095-1117, 1999.

[2] Hyun-soo Ahn, Izak Duenyas, and Mark Lewis. Optimal control of a two-stage tandem queueing system with flexible servers. Probability in the engineering and informational sciences, 16, 453-369, 2002.

[3] Ilan Adler., Hyun-soo Ahn, Richard Karp, and Sheldon Ross. Coalescing times for IID random variables with applications to population biology. Random Structures and Algorithms, Vol 23, Issue 2, 155-166, 2003.

[4]  Hyun-soo Ahn, Izak Duenyas, and Rachel Zhang. Optimal control of a flexible server. Advances in Applied Probability. Advances in Applied Probability, 36, 139-170, 2004.

[5]  Hyun-soo Ahn and R. Righter. Multi-actor Markov decision processes, Journal of Applied Probability, Vol. 42, 15-26, 2005.

[6]  Hyun-soo Ahn and Philip Kaminsky. Production and distribution policy in a two stage stochastic push-pull supply chain. IIE Transactions, Vol. 37, Issue 7, 609-621, 2005.

[7]  Hong-Bae Jun, Hyun-Soo Ahn, and Hyo W. Suh. On identifying and estimating the cycle time of product development process, IEEE Transactions on Engineering Management, Vol. 52, 336-349, 2005. -- Honorable mention for 2005 IEEE-TEM  Best Paper Award.

[8] David Kaufman, Hyun-soo Ahn, and Mark E. Lewis.  On the introduction of agile, temporary workers into a tandem queueing system.  Queueing Systems, Vol. 51, 173-186. 2005.

[9] Hyun-soo Ahn, Rhonda Righter, and J. G. Shanthikumar. Staffing decisions for heterogeneous workers with turnover, Mathematical Methods of Operations Research, Vol. 62-3, 499-514. 2005

[10] Ilan Adler., Hyun-soo Ahn, Richard Karp, and Sheldon Ross. A probabilistic model for the survivability of cells. Journal of Applied Probability, Vol. 42, 919-931. 2005

[11]  Hyun-Soo Ahn, M. Mayorga, and J. G. Shanthikumar. Optimal production and capacity policy in a make-to-stock System with multi-class demand. Probability in Engineering and Informational Sciences, Vol. 20., 609-634, 2006

[12] Hyun-soo Ahn and R. Righter. Dynamic load balancing with flexible workers, Advances in Applied Probability, Vol. 38, 621-642, 2006.

[13]  Hyun-soo Ahn , Mehmet Gumus, and Philip Kaminsky. Pricing and manufacturing decisions when demand is a function of prices in multiple periods. Operations Research,  Vol 55, 1039-1057, 2007. (A version with the e-companion appendix is available here)

[14]  Jung-hyun Kim, Hyun-soo Ahn, Rhonda Righter. Optimal production policies with multistage stochastic demand leadtimes. Probability in the Engineering and Informational Sciences,   Vol 23, 515-543, 2009.

[15]  Hyun-soo Ahn , Mehmet Gumus, and Philip Kaminsky. Inventory, Discounts, and the Timing Effects. M&SOM,   Vol 11-4, 613-629, 2009.

[16]  Katia Frank, Hyun-soo Ahn, Rachel Zhang. Inventory policies for a make-to-order system with a perishable component and fixed ordering cost. Naval Research Logistics,   Vol 56. 127-141. 2009.

[17]  Hyun-soo Ahn. Understanding and Managing Variability. Wiley Encyclopedia of Operations Research and Management Science. 2011.

[18]  Jung-Hyun Kim, Hyun-soo Ahn, Rhonda Righter. Managing queues with Heterogeneous Servers. Journal of Applied Probability,   Vol 48, pp. 435-452, 2011.

[19]  Chia-wei Kuo, Hyun-soo Ahn, Goker Aydin. Dynamic pricing of limited inventories when customers negotiate. Operations Research,   Vol 59, pp. 882-897, 2011.

[20]  Maria Mayorga, Hyun-soo Ahn. Joint management of capacity and inventory in make-to-stock production systems. European Journal of Operational Research,   Vol 212 (2), pp. 312-324, 2011.

[21]  Chia-wei Kuo, Hyun-soo Ahn, Goker Aydin. Pricing Policy in a Supply Chain: Negotiation or Posted Pricing.  To appear POMS.

[22]  Hyun-Soo Ahn and Mark E. Lewis. Flexible Server Allocation and Customer Routing Policies for Two Parallel Queues when Service Rates are not Additive. To appear Operations Research.

[23]  Hakjin Hwang, Hyun-soo Ahn, Philip Kaminsky. Basis Paths and a Polynomial Algorithm for the Multi-Stage Production-Capacitated Lot-Sizing Problem.  To appear Operations Research.

[24]  Anyan Qi, Hyun-soo Ahn, Amitabh Sinha. Investing in a Shared Supplier in a Competitive Market. Under review.

[25]  Man Yu, Hyun-soo Ahn, Roman Kapuscinski. Advance Selling with Asymmetric Information. Under review.

[26]  Yan Yin, Hyun-soo Ahn, Damian Beil. The Role of Cost Modeling in Competitive Bid Procurement. Under review.

[27] Eren Cetinkaya, Hyun-soo Ahn, Izak Duenyas.   Benefits of Collaboration in Capacity Investment and Allocation. Under review.