• Primary research interests
• Published papers
• Forthcoming papers
• Working papers and theses
• Invited book chapters
• White papers
• Presentations at academic conferences
• Invited presentations at colleges and universities
• Other invited presentations
• Research grants

• Supply Chain Management (primarily models for designing and operating supply chains under the threat of disruptions)
• Applied optimization
• Logistics (facility location, vehicle routing)
• Heuristics (genetic algorithms, tabu search)

1. Ross, A. M., Y. Rong, and L. V. Snyder.  Supply disruptions with time-dependent parameters.  Computers and Operations Research 35(11), 3504-3529, 2008.  (Download pdf file.)
2. Snyder, L. V., M. S. Daskin, and C.–P. Teo.  The stochastic location model with risk pooling.  European Journal of Operational Research 179(3), 1221-1238, 2007.  (Download pdf file.)
3. Hartman, J. H., S. C. Liedka, and L. V. Snyder.  The impact of US tax depreciation law on asset location and ownership decisions.  Computers and Operations Research 34(12), 3560-3568, 2007.  (Download pdf file.)
4. Snyder, L. V.  Facility location under uncertainty: A review.  IIE Transactions 38(7), 537-554, 2006.  (Download pdf file.  Download summary table.)
5. Snyder, L. V., and M. S. Daskin.  Stochastic p-robust location problems.  IIE Transactions 38(11), 971-985, 2006.  (Download pdf file. Download data sets.)
6. Snyder, L. V. and M. S. Daskin.  A random-key genetic algorithm for the generalized traveling salesman problem.  European Journal of Operational Research 174(1), 38-53, 2006.  (Download pdf file. Download data sets.)
7. Snyder, L. V. and Z.-J. M. Shen.  Supply chain management under the threat of disruptions. The Bridge (National Academy of Engineering), 36(4), 39-45, Winter 2006. (Click here for HTML version.)
8. Snyder, L. V. and M. S. Daskin.  Reliability models for facility location: The expected failure cost case.  Transportation Science 39(3), 400-416, 2005.  (Download pdf file.  Download data sets.)
9. Simchi-Levi, D., L. Snyder, and M. Watson. Strategies for uncertain times, Supply Chain Management Review 6(1), 11–12, 2002.  (Download pdf file.)

Forthcoming Papers

1. Qi, L., Z.-J. M. Shen, and L. V. Snyder.  A continuous-review inventory model with disruptions at both supplier and retailer. Forthcoming in Production and Operations Management. (Download pdf file.) Revised 12/07. 

Working Papers and Theses

1. Rong, Ying, L. V. Snyder, and Y. Sun.  Inventory sharing under decentralized preventive transshipments.  Submitted for publication.  (Download from SSRN.) Revised 10/08.
2. Snyder, L. V. A tight approximation for a continuous-review inventory model with supplier disruptions.  Submitted for publication. (Lehigh University Dept. of ISE Technical Report #05T-005.  Download pdf file.) Revised 9/08.
3. Rong, Ying, L. V. Snyder, and Z.-J. M. Shen.  Bullwhip and reverse bullwhip effects under the rationing game.  Submitted for publication.  (Download from SSRN.) 8/08.
4. Schmitt, Amanda J., L. V. Snyder, and Z.-J. M. Shen.  Centralization versus decentralization: Risk pooling, risk diversification, and supply uncertainty in a one-warehouse multiple-retailer system.  Submitted for publication.  (Download from SSRN.) 5/08.
5. Qi, L., Z.-J. M. Shen, and L. V. Snyder.  The effect of supply disruptions on supply chain network design. Submitted for publication. (Download pdf file.) 3/08. 
6. Schmitt, Amanda J., L. V. Snyder, and Z.-J. M. Shen.  Inventory systems with stochastic demand and supply: Properties and approximations.  Submitted for publication.  (Download from SSRN.) 1/08.
7. Schmitt, A. and L. V. Snyder.  Infinite-horizon models for inventory control under yield uncertainty and disruptions.  Submitted for publication.  (Download from SSRN.) 10/07.
8. Tomlin, B.T. and L. V. Snyder.  On the value of a threat advisory system for managing supply chain disruptions.  Submitted for publication.  (Download pdf file.) Revised 4/07.
9. Rong, Y., Z.-J. M. Shen, and L. V. Snyder.  The impact of ordering behavior on order-quantity variability: A study of forward and reverse bullwhip effects.  Submitted for publication.  (Download pdf file.) Revised 2/07.
10. L. V. Snyder and Z.-J. M. Shen.  Supply and demand uncertainty in multi-echelon supply chains.  Submitted for publication.  (Download pdf, dvi, or ps file.) 9/06.
11. Snyder, L. V.   Supply chain robustness and reliability: Models and algorithms. Ph.D. dissertation, Northwestern University, Department of Industrial Engineering and Management Sciences, 2003.  (Download pdf file.)
12. Snyder, L. V.  Combinatorial rigidity and the path decomposition of isostatic graphs, B.A. honors thesis, Amherst College, Department of Mathematics and Computer Science, 1996. (Thesis advisors: Ruth Haas and Norton Starr.)

1. L. V. Snyder and Z.-J. M. Shen.  Supply chain management under the threat of disruptions.  In "Frontiers of Engineering: Reports on Leading-Edge Engineering from the 2006 Symposium," Washington, DC: National Academies Press, 139-147, 2007. 
2. L. V. Snyder and M. S. Daskin.  Models for reliable supply chain network design.  In "Critical Infrastructure: Reliability and Vulnerability," A. T. Murray and T. H. Grubesic (eds.), Chapter 13, pp. 257-289, Berlin: Springer-Verlag, 2007.  (Download pdf file.)
3. L. V. Snyder, Scaparra, M. P., Daskin, M. S., and R. L. Church.  Planning for disruptions in supply chain networks.  In "TutORials in Operations Research," Johnson, M. P., B. Norman, and N. Secomandi (eds.), Chap. 9, Baltimore: INFORMS, 234-257, 2006.  (Download pdf file.)
4. Daskin, M. S., L. V. Snyder, and R. T. Berger.  Facility location in supply chain design.  In "Logistics Systems: Design and Operation," A. Langevin and D. Riopel (eds.), Chap. 2, New York: Springer, 39-66, 2005.  (Northwestern University Working Paper #03-010.  Download pdf file.)

1. Snyder, L. V., Z.-J. M. Shen, and J. L. Sutherland (2006). Supply chain management considerations under the threat of disruptions. Center for Value Chain Research white paper #0603, Lehigh University. (Download pdf file.)

1. Rong, Y., L. V. Snyder, and Y. Sun. Inventory sharing and preventive transshipments with local decision making. INFORMS, Seattle, WA, November 2007. Invited presentation.
2. Schmitt, A. J., L. V. Snyder, and Z. J. M. Shen. Risk-averse policies in a one-warehouse multiple-retailer system with demand and supply uncertainty. INFORMS, Seattle, WA, November 2007. Invited presentation.
3. Bulut, Z. and L. V. Snyder. A heuristic for the Clark-Scarf algorithm. INFORMS, Seattle, WA, 2007. Interactive session.
4. Schmitt, A. J., L. V. Snyder, and Z. J. M. Shen. Risk diversification in a one-warehouse multiple-retailer system with supply disruptions. INFORMS International, Puerto Rico, July 2007. Invited presentation.
5. Snyder, L. V., Y. Rong, and Z. J. M. Shen. The impact of ordering behavior on order-quantity variability: A study of forward and reverse bullwhip effects. Multi-Echelon Conference (MSOM), Beijing, China, June 2007.
6. Jeon, H.-M. and L. V. Snyder. Capacitated location-inventory models with supply disruptions. IIE, Nashville, TN, May 2007. Invited presentation.
7. Snyder, L. V. and Z. J. M. Shen. Supply and demand uncertainty in multi-echelon supply chains. INFORMS, Pittsburgh, PA, November 2006. Invited presentation. (Download pdf file.)
8. Snyder, L. V., Y. Rong, and Z. J. M. Shen. Supply uncertainty and the reverse bullwhip effect. INFORMS, Pittsburgh, PA, November 2006. Invited presentation.
9. Snyder, L. V., M. P. Scaparra, M. S. Daskin, and R. L. Church. Planning for disruptions in supply chain networks. Tutorial, INFORMS, Pittsburgh, PA, November 2006. Invited tutorial.
10. Schmitt, A. and L. V. Snyder.  Infinite-horizon models for inventory control under yield uncertainty and disruptions. INFORMS, Pittsburgh, PA, November 2006. Invited session chair.
11. Rong, Y., A. M. Ross, and L. V. Snyder.  The benefit of time-dependent ordering policies under cyclic supply disruptions. INFORMS, Pittsburgh, PA, November 2006.   Contributed presentation.
12. L. V. Snyder.  Supply chain management under the threat of disruptions. U.S. Frontiers of Engineering (USFOE) symposium, National Academy of Engineering, Detroit, MI, September 2006.
13. Jeon, H.-M., L. V. Snyder, and Z. J. M. Shen.  A location-inventory model with disruptions.  IIE, Orlando, FL, May 2006. 
14. Qi, L., Z. J. M. Shen, and L. V. Snyder.   The effect of supply uncertainty on supply chain design decisions.  IIE, Orlando, FL, May 2006. 
15. Snyder, L. V. and Z. J. M. Shen.  Disruptions in multi-echelon supply chains: A simulation study.  INFORMS, San Francisco, CA, November 2005.  Invited session chair.
16. Tomlin, B. T. and L. V. Snyder.  On the value of advanced information in managing supply-chain disruption risks.  INFORMS, San Francisco, CA, November 2005.  Invited session chair.
17. Snyder, L. V. and B. T. Tomlin.  Inventory management with advanced warning of disruptions.  MSOM, Evanston, IL, June 2005.
18. Snyder, L. V. and H.-M. Jeon.  Joint location–inventory optimization with unreliable facilities.  ISOLDE X, Seville, Spain, June 2005.  Invited presentation.
19. Snyder, L. V. and N. Ş. Ülker.  A model for locating capacitated, unreliable facilities.  IIE, Atlanta, GA, May 2005.  Invited session chair.
20. Snyder, L. V.  A tight approximation for an inventory model with an unreliable supplier.  INFORMS, Denver, CO, October 2004.  Invited presentation.
21. Snyder, L. V.  Location–inventory modeling with unreliable suppliers.  INFORMS, Denver, CO, October 2004.  Invited presentation.
22. Snyder, L. V.  A tight approximation for a continuous-review inventory model with supplier disruptions.  MSOM, Eindhoven, The Netherlands, July 2004.
23. Snyder, L. V. and M. S. Daskin.  Multi-commodity location/inventory modeling.  IIE, Houston, May 2004.  Invited presentation.
24. Snyder, L. V. and M. S. Daskin.  p-Robust facility location problems.  Regional Science Association Conference, Philadelphia, PA, November 2003.  Invited presentation.
25. Snyder, L. V. and M. S. Daskin.  Reliability models for facility location.  INFORMS, Atlanta, GA, November 2003.  Invited presentation.
26. Snyder, L. V. and M. S. Daskin.  A p-robust location/inventory model.  INFORMS, San Jose, CA, November 2002.  Invited presentation.
27. Snyder, L. V. and M. S. Daskin.  A reliability-based P-median model.  INFORMS, San Jose, CA, November 2002.  Invited presentation.
28. M. S. Daskin, Snyder, L. V., and C.–P. Teo.  A multi-scenario approach to integrated inventory–location modeling.  IFORS, Edinburgh, Scotland, July 2002.  Invited presentation.
29. Snyder, L. V., M. S. Daskin, and C.–P. Teo.  A multi-scenario approach to robust integrated inventory–location modeling.  ISOLDE IX, New Brunswick, Canada, June 2002.  Invited presentation.
30. Snyder, L. V. and M. S. Daskin.  The newsvendor problem with demand-estimating IT systems.  INFORMS, Miami Beach, FL, November 2001. 
31. Snyder, L. V. and M. S. Daskin.  The partial assignment P-median problem: A multi-objective approach.  INFORMS International, Maui, HI, June 2001.  Invited presentation.
32. Snyder, L. V. and M. S. Daskin.  The partial covering P-median problem.  Regional Science Association Conference, Chicago, IL, November 2000.  Invited presentation.
33. Snyder, L. V. and M. S. Daskin.  The partial covering P-median problem.  INFORMS, San Antonio, TX, November 2000.  Invited presentation.
34. Snyder, L. V. and M. S. Daskin.  A random-key genetic algorithm for the generalized traveling salesman problem.  INFORMS, San Antonio, TX, November 2000.

Invited Presentations at Universities and Colleges
(name of presenter appears first)

1. Snyder, L. V.  Supply disruptions and the reverse bullwhip effect.  IE Department, Penn State University, February 2008.
2. Snyder, L. V.  Supply disruptions and the reverse bullwhip effect.  ISE Department, Rutgers University, October 2007.
3. Snyder, L. V. and J. D. Dischinger  Resiliency in a global value chain.  CVCR Symposium on Value Chain Adaptability, Lehigh University, Bethlehem, PA, May 2006.
4. Snyder, L. V. and B. T. Tomlin  Inventory management with advanced warning of disruptions.  Tippie Seminar Series in Transportation, University of Iowa, February 2006.
5. Snyder, L. V.  Coping with disruptions in supply chain and logistics networks.  Kent Business School, University of Kent, Canterbury, England, October 2005.
6. Snyder, L. V.  Designing and operating supply chains in the presence of supply disruptions.  SUNY at Buffalo, Buffalo, NY, October 2004.
7. Daskin, M. S., C. R. Coullard, L. V. Snyder, L. Ozsen, and Z. M. Shen.  Reliability and robustness in integrated location-inventory modeling.  Joint Seminar Series of the Kellogg School of Management and McCormick School of Engineering & Applied Sciences, Northwestern University, December 2003.
8. Snyder, L. V.  Reliability models for facility location.  Applied Decision Modeling Seminar Series, Carnegie Mellon University and the University of Pittsburgh, Pittsburgh, PA, March 2003.
9. Snyder, L. V.  Operations research for math majors: How to use your math or computer science degree in the real world.  Amherst College Mathematics Seminar Series, Amherst, MA, October 2002.

Other Invited Presentations

1. Snyder, L. V.  Panelist, Forum on Medical and Public Health Preparedness for Catastrophic Events.  Institute of Medicine (National Academies), Washington, DC, January 2008.
2. Snyder, L. V.  Multi-echelon inventory management.  OR Roundtable, Air Products and Chemicals, Allentown, PA, June 2006.
3. Snyder, L. V.  Cooperative supply chain management.  Agere Supply Chain Day, Agere Systems, Allentown, PA, July 2005.

Research Grants

1. Purchasing and inventory management in disrupted supply chains: The reverse bullwhip effect.  NSF grant #DMI-0726822.  August 2007--July 2010. With Zuo-Jun Max Shen (Berkeley).
2. Modeling and mitigating supply chain vulnerabilities.  NSF grant #DMI-0522725.  September 2005--August 2008.
3. Resiliency and robustness for the chemical and industrial gases industries.  Air Products and Chemicals.  August 2007--July 2008. 
4. Resiliency and robustness for the chemical and industrial gases industries.  PITA (Pennsylvania Infrastructure and Technology Alliance).  FY2008.
5. Computational models and algorithms for enterprise-wide optimization of process industries.  PITA (Pennsylvania Infrastructure and Technology Alliance).  FY2008.
6. Network optimization software and algorithms for a confectionary supply chain.  Just Born, Inc.  July 2007--June 2008. 
7. Network optimization software and algorithms for a confectionary supply chain.  PITA (Pennsylvania Infrastructure and Technology Alliance).  FY2008.
8. Strategies for coping with supply chain disruptions.  IBM Integrated Supply Chain.  August 2005--July 2006.  With George R. Wilson.
9. Managing capacity and inventory in the high-tech manufacturing industry.  Agere Systems.  August 2005--July 2006.
10. Managing capacity and inventory in the high-tech manufacturing industry.  PITA (Pennsylvania Infrastructure and Technology Alliance).  FY2006.
11. The reverse bullwhip in disrupted supply chains.  Lehigh University Faculty Research Grant.  FY2005-2006.