Jack C. Hayya

Jack C. Hayya

Jack C. Hayya is professor emeritus of management science at the Pennsylvania State University.

Education

*B.S., Civil Enginering, University of Illinois at Champaign-Urbana, 1952
*M.S., Management, California State University, Northridge, 1961 [Hayya, Jack C. 1966. A study on the appropriate use of PERT in procurement contracts. Thesis (Ph. D.)--University of California, Los Angeles, 1966. OCLC 18820012]
*Ph.D., Business Administration, University of California, Los Angeles, 1966 [Hayya, Jack C. 1961. An analysis and evaluation of the United States and Soviet defense organizations. Thesis (M.S.)--San Fernando Valley State College, 1961. OCLC 9589374] [cite web
url=http://php2.smeal.psu.edu/smeal/dirbio/displayBio.php?t_user_id=jch
title=Bio of Jack Hayya
accessdate=2008-07-15
publisher=Penn State - Smeal College of Business
quote=Jack C. Hayya is Professor emeritus (since 1 July 1998) of Management Science at Penn State University and winner of that university's 1996 Graduate Faculty Teaching Award. He is a Fellow of Decision Sciences Institute (since 1990), was chair of its Publications Committee (1991-92); and vice-resident at-large (1992-94).
]

Personal

Jacob Hayya was born in Iraq, about 1929.

In 1947cite web
url=https://netfiles.uiuc.edu/ro/www/CosmopolitanClubattheUniversityofIllinois/connections/nlspr05/nlspr05d.html
title= Reminiscences of the Cosmo House
accessdate=2008-07-15
last=Hayya |first=Jack
year=2005
month=May
work=Cosmo Connections
publisher=University of Illinois (Champaign-Urbana)
quote=I came to the Cosmopolitan Fraternity
] , the government of Iraq sent him to study engineering in the United States. During his undergraduate years he lived in the Cosmopolitan fraternity house at the University of Illinois at Urbana-Champaign, mostly with other foreign students. He was an engineer on some large public works projects before returning to academia.

He lives in State College, Pennsylvania with his wife, Susan Hayya.

References

* [http://www.personal.psu.edu/faculty/j/c/jch/resume1.htm Faculty homepage]

Publications (partial list)

*He, Xin James, Kim, Jeon G., Hayya, Jack C. The cost of lead-time variability: The case of the exponential distribution.
*Ramasesh, Ranga V., Fu, Haizhen, Fong, Duncan K. H., Hayya, Jack C. Lot streaming in multistage production systems.
*Hong, Jae-Dong, Hayya, Jack C. Just-In-Time purchasing: Single or multiple sourcing?.
*Jack Hayya, Roger Pfaffenberger. Student Workbook for Use with Statistical Methods for Business and Economics. Paperback. June 1987. McGraw-Hill Education. ISBN 9780256036657. LC 0256036659.----
*William L. Ferrara and Jack C. Hayya, "Toward Probabilistic Profit Budgets," "Management Accounting" (October 1970), pp. 23-28.
*William L. Ferrara, Jack C. Hayya, and David A. Nachman, "Normalcy of Profits in the Jaedicke-Robichek Model," "Accounting Review" April 1972), pp. 299-307.
*Jack C. Hayya and William L. Ferrara, "On Normal Approximations of the Frequency Functions of Standard Forms where the Main Variables are Normally Distributed," "Management Science", Vol. 19, 2, (October 1972), pp. 173-186.
*Nicolas Gressis, Jack Hayya, and George Philippatos, "Multiperiod Portfolio Selection Via the Geometric Mean," "The Financial Review" (1974), pp. 46-63.
*Jack Hayya, Ronald Copeland, and Hung Chan, "On Extensions of Probabilistic Profit Budgets," "Decision Sciences", Vol. 6, No. 1 (January 1975), pp. 106-119.
*Jack Hayya, Donald Armstrong, an Nicolas Gressis, "A Note on the Ratio of Two Normally Distributed Variables," "Management Science", Vol. 21, No. 11 (July 1975), pp. 1338-1341.
*Jack Hayya, William Ferrara, and Erwin Saniga, "On Extending the Applicability of Probabilistic Management Planning and Control Models: A Comment," "The Accounting Review (October 1975), pp. 826-831.
*Oscar J. Holzmann, Ronald W. Copeland, and Jack Hayya, "Income Measures of Conglomerate Performance," "The Quarterly Review of Business and Economics", Vol. 15, No. 3 (Winter 1975), pp. 67-78.
*Hung Chan and Jack Hayya, "Spectral Analysis in Business Forecasting," "Decision Sciences", Vol. 7, No. 1 (January 1976), pp. 137-151.
*Nicolas Gressis, George Philippatos, and Jack Hayya, "Multiperiod Portfolio Analysis and the Inefficiency of the Market Portfolio," "Journal of Finance", Vol. 31, No. 4 (September 1976), pp. 1115-1126.
*Eli Sani and Jack Hayya, "A Note on the Distribution of Residuals in the Sharpe Diagonal Model," "Journal of Business Research", Vol. 4, No. 4 (November 1976), pp. 358-369.
*Hung Chan, Jack Hayya, and Keith Ord, "A Note on Trend Removal Methods: The Case of Polynomial Regression Versus Variate Differencing," "Econometrica", Vol. 45, No. 3 (April 1977), pp. 737-744.
*Erwin Saniga and Jack Hayya, "Simple Goodness-of-Fit Tests for Symmetric Stable Distributions," "Journal of Financial and Quantitative Analysis", (June 1977), pp. 276-289.
*Hung Chan and Jack Hayya, "Spectral Analysis in Business Forecasting: The Weiner-Kolmogorov Method," "Decision Sciences", Vol. 9, No. 4 (October 1978), pp. 700-711.
*Robert S. Sullivan and Jack C. Hayya, "Alternatives to PERT for Stochastic Network Analysis," "Project Management Quarterly", Vol IX, No. 4 (December 1978), pp. 13-18.
*Erwin Saniga, Nicolas Gressis, and Jack Hayya, "The Effects of Sample Size and Correlation on the Accuracy of the EV Efficiency riterion," "Journal of Financial and Quantitative Analysis" (September 1979), Vol. XIV, No. 3, pp. 615-627.
*Robert S. Sullivan and Jack C. Hayya, "A Comparison of the Bounding Distributions (MBD) and Monte Carlo Simulation for Analyzing Stochastic Acyclic Networks," "Operations Research", Vol. 28, No. 3, Part I (May-June 1980), pp. 614-617.
*Jack C. Hayya, Erwin M. Saniga, and Ronny Schaul, "Uncertainty in Price Indices," "RAIRO-Operations Research", Vol. 16, No. 1 (February 1982), pp. 33-43.
*Robert S. Sullivan, Jack C. Hayya, and Ronny A. Schaul, "Efficiency of the Antithetic Variate Method for Simulating Stochastic Networks," "Management Science", Vol. 28, No. 5 (May 1982), pp. 563-572.
*John J. Kanet and Jack C. Hayya, "Priority Dispatching with Operation Due Dates in a Job Shop," "Journal of Operations Management", Vol. 2, No. 3 (May 1982), pp. 167-175.
*Uttarayan Bagchi, Jack C. Hayya, and J. Keith Ord, "The Hermite Distribution as a Model of Demand During Lead Time," "Decision Sciences", Vol. 14, No. 4 (Fall 1983), pp. 447-466.
*Uttarayan Bagchi and Jack C. Hayya, "Demand During Lead Time for Normal Unit Demand and Erlang Lead Time," "The Journal of the Operational Research Society", Vol. 35, No. 2 (1984), pp. 131-135.
*Uttarayan Bagchi, Jack C. Hayya, and J. Keith Ord, "Modeling Demand During Lead Time," "Decision Sciences", Vol. 15, No. 2 (Spring 1984), pp. 157-176.
*Uttarayan Bagchi, Jack C. Hayya, and Chao-Hsien Chu, "The Effect of Lead-Time Variability: The Case of Independent Demand," "Journal of Operations Management", Vol. 6, No. 2 (February 1986), pp. 259-277.
*Jack C. Hayya, David P. Christy, and Andrew Pan, "Reducing Inventory Uncertainty: A Reorder Point System with Two Vendors," "Production and Inventory Management", Vol. 28, No. 2 (1987), pp. 43-48.
*Chu, C.-H. and J. C. Hayya, "Buffering Decisions Under MRP Environment: A Review," "OMEGA", Vol. 16, No. 4, 1988, pp. 325-331.
*Hong, J. D., R. R. Sandrapaty, and J. C. Hayya, "On Production Policies for a Linearly Increasing Demand and Finite, Uniform Production Rate," "Computers and Industrial Engineering", Vol. 18, No. 2 (1990), pp. 119-127.
*Hong, J. D. and J. C. Hayya, "On an (s, Q) Production Policy for an Integrated Inventory Model for a Single Product with Linearly Increasing Demand," "The Journal of the Operational Research Society", Vol. 41, No. 10, (1990) pp. 931-942.
*Pan, A. C., R. V. Ramasesh, J. C. Hayya, and J. K. Ord, "Multiple Sourcing: The Determination of Lead Times," "Operations Research Letters", Vol. 10, No. 1 (1991), pp. 1-7.
*Ramasesh, R. V., J. K. Ord, J. C. Hayya, and A. C. Pan, "Sole versus Dual Sourcing in Stochastic Lead-Time (s, Q) Inventory Models," "Management Science", Vol. 37, No. 4 (1991), pp. 428-443.
*Chu, C. H. and J. C. Hayya, "A Fuzzy Clustering Approach To Manufacturing Cell Formation," "International Journal of Production Research", Vol. 29, No. 7, 1991, pp. 1475-1487.
*Hong, J. D. and J. C. Hayya, "An Optimal Algorithm for Integrating Raw Materials Inventory in a Single-Product Manufacturing System," "European Journal of Operational Research", Vol. 59, 1992, pp. 313-318.
*Hong. J. D., J. C. Hayya, and S. L. Kim, "JIT Purchasing and Setup Reduction in an Integrated Inventory Model," "International Journal of Production Research", Vol. 30, No. 2, 1992, pp. 255-266.
*Kim, S. L., J. C. Hayya, and J. D. Hong, "Setup Reduction in the Economic Production Quantity Model," "Decision Sciences", Vol. 23, No. 2, 1992, pp. 500-508.
*Hong, J. D. and J. C. Hayya, "An (s, Q) Policy with Setup Reduction in a Single-Stage Batch Manufacturing System," "Computers and Operations Research", Vol. 19, No. 1, 1992, pp. 9-19.
*Hong, J. D. and J. C. Hayya, "Just -in-Time Purchasing: Single or Multiple Sourcing?," "International Journal of Production Economics", Vol. 27, 1992, pp. 175-181.
*Ramasesh, R.V. , J.K. Ord, and J.C. Hayya, "Dual Sourcing with Nonidentical Suppliers," "Naval Research Logistics", 40(2): 279-288 (1993).
*Hong, J.D. and J.C. Hayya, "Dynamic Lot Sizing with Setup Reduction," "Computers and Industrial Engineering", 24(2): 209-218 (1993).
*Hong, J. D., T. M. Cavalier, and J. C. Hayya, "On the (t, s) Policy in an Integrated Production/Inventory Model with Time-Proportional Demand," "European Journal of Operational Research", 69: 154-165 (1993)
*Hong, J.D., S.H. Xu, and J.C. Hayya, "Process quality improvement and setup reduction in dynamic lot-sizing," "International Journal of Production Research", 31(11): 2693- 2708 (1993).
*Kim, S.L., J.C. Hayya, and J.D. Hong, "Setup Reduction and Machine Utilization." "Production and Operations Management", 4(1): 76-90 (1995).
*Hayya, J.C., S.H. Xu, R.V. Ramasesh, and X.X. He, " Order Crossover in Inventory Systems," "Stochastic Models", Vol. 11(2), 1995, pp. 279-309.
*Hong, J.D. and J.C. Hayya, "Joint Investment in Quality Improvement and Setup Reduction." "Computers and Operations Research", Vol. 2, No. 6, pp. 567-574, 1995.
*Hong, J.D., S.L. Kim, and J.C. Hayya, "Dynamic setup reduction in production lot sizing with nonconstant demand," "European Journal of Operational Research", Vol. 90, 1996, pp. 182-196.
*Hong, J.D. and J.C. Hayya, "WIP Inventories in the Simultaneous Determination of Optimal Production and Purchase Lot Sizes," "Production Planning and Control", Vol. 8, 1997, No. 4, 321- 331.
*He, X.X., S.H. Xu, J.K. Ord, and J.C. Hayya, "An Inventory Model with Order Crossover," "Operations Research", Vol. 46 (supp. no. 3), May-June 1998, S112-S119.
*Zeng, Amy Z. and Jack C. Hayya, "The performance of two popular service measures on management effectiveness in inventory control," "International Journal of Production Economics", Vol. 58, 1999, pp. 147-158.
*Hong, J.D. and J.C. Hayya, "On integrated production-replenishment policies in single-stage manufacturing," "Computers & Operations Research", Vol. 26, 1999, pp. 505-523.
*Ramasesh, Ranga V., Haizhen Fu, Duncan K.H. Fong, and Jack C. Hayya, "On Lot Streaming," "International Journal of Production Economics", Vol. 66 (2000) 199-211.
*Geunes, Joseph P., Ranga V. Ramasesh, and Jack C. Hayya, "Adapting the newsvendor model for infinite-horizon inventory systems," "International Journal of Production Economics", Vol. 72, 2001, pp. 237-250.
*Xin (James) He and Jack C. Hayya, "The impact of just-in-time production on food quality," "Total Quality Management Journal", Vol 13(2), 2002, 651-670.
*Jack C. Hayya, Dean C. Chatfield (VPI), Xin (James) He (Fairfield), Chao-Hsien Chu, “Supply Chain Information Technology Metrics,” "International Journal of Operations & Quantitative Management", Vol. 9(1), March 2003, 33-48.
*Li, Zhaolin, Susan H. Xu, and Jack Hayya , “A periodic review inventory model with supply interruption,” "Probability in the Engineering and Informational Sciences", Vol. 18, 2004, pp. 33-53.
*Kim, J., D. Sun, X. He (Fairfield), and J. Hayya, “The (s, Q) Inventory Model with Erlang Lead Time and Deterministic Demand” in "Naval Research Logistics", Vol. 51, 2004.
*Chatfield, D.C., J.G. Kim, T.P. Harrison, and J.C. Hayya, “The Bullwhip Effect - Impact of Stochastic Lead Times, Information Quality, and Information Sharing: a Simulation Study,” in "Production and Operations Management", Vol. 13, No. 4,Winter 2004, pp. 340-353.
*He, X. (Fairfield), Kim, and Hayya, “The cost of finite lead-time variability in inventory analysis,” in to "International Journal of Production Economics", Volume 97, Issue 2, Pages 130-142 (18 August 2005).
*J. Kim, D. Chatfield (VPI), T. Harrison, and J. Hayya, “Quantifying the Bullwhip Effect in a Supply Chain with Stochastic Lead Time,” "European Journal of Operational Research" (forthcoming 2005).
*Chatfield, D.C., T.P. Harrison, and J.C. Hayya, “SISCO: an object-oriented supply chain simulation tool utilizing Java and XML” in "Decision Support Systems" (forthcoming 2005).
*Chatfield, D. (VPI), T. P. Harrison, and J. C. Hayya, “An XML-centered approach to creating object-oriented supply chain simulation models” in "International Journal of Simulation and Process Modelling" (IJSPM ) – forthcoming 2005.
*Hayya, J.C., Kim, J. G., S. Disney, T. Harrison, D. C. Chatfield, “Estimation procedures in supply chain inventory management: an overview” "International Journal of Production Research" (forthcoming 2005).
*Robert S. Sullivan and Jack C. Hayya, "Stochastic Network Analysis," in David I. Cleland and William R. King (editors), "Project Management Handbook", New York: Van Nostrand Reinhold Company (1983), pp. 340-363.
*Jack Hayya, William Ferrara, and Erwin Saniga, "On the Appropriate Size of Sample in c 2 Tests: A Reply to Lau and Kottas," "The Accounting Review" (January 1978), pp. 252-259.
*Ronald Copeland, James Davis, and Jack Hayya, "Preliminary Sample Variability and Audit Sample Sizes," "Proceedings of the American Accounting Association's Mid-Atlantic Regional Meeting" (April 10-12, 1973) pp. 163-173.
*K. Hung Chan and Jack C. Hayya, "On Heteroscedasticity When the Regressand Can Take on Only Few Values," "Proceedings of the Business and Economic Section of the American Statistical Association" (1973), Washington, DC: The American Statistical Association, pp. 298-304.
*Lawrence Rose, Malcolm Gotterer, and Jack Hayya, "A Simulation Model for Dynamic File Management," "Proceedings Winter Simulation Conference" (January 1974), pp. 251-247.
*Daniel Toy and Jack Hayya, "On the Appropriate Use of Regression in Marketing Experiments," "Proceedings 1974 Meeting NE American Institute for Decision Sciences" (Defosses, editor), pp. 74- 76.
*Jack Hayya, Roger Pfaffenberger, and Hung Chan, "On Some Considerations in Discrete Regressions," "Proceedings of the Business and Economic Statistics Section of the American Statistical Association" (1974), Washington, DC: The American Statistical Association, pp. 401-406.
*Jack Hayya and Hung Chan, "Forecasting Techniques and How to Apply Them," 1974 "APICS Conference Proceedings", Washington, DC: American Production and Inventory Control Society, pp. 146-147.
*Jack Hayya, Danny Wong, and Hung Chan, "On The Application of Forecasting Techniques to Annual Sales Data," "Proceedings and Abstracts, Western Regional Meeting, American Institute of Decision Sciences" (March 20-21, 1975) pp. 102-104.
*Robert Sullivan and Jack Hayya, "The Logistics of Disaster Relief," 1975 Proceedings, "Midwest Decision Sciences Conference", pp. 16-20.
*Jack Hayya, "On the Pitfalls of Using the Generalized Least Squares in the Analysis of Questionnaire Data," "1975 NE Decision Sciences Proceedings", pp. 260-262.
*Hung Chan and Jack Hayya, "Business Forecasting: The Spectral Approach," "1975 NE Decision Sciences Proceedings", pp. 193-196.
*Erwin Saniga, Roger Pfaffenberger, and Jack Hayya, "Estimation and Goodness-of-Fit Tests for Symmetric Stable Distributions," "Proceedings of the Business and Economic Statistics Section of the American Statistical Association" (1975), Washington, DC: The American Statistical Association, pp. 530 534.
*Jack Hayya, Daniel Toy, and Ronny Schaul, "On the Appropriate Sample Size in Regression," "1976 SE Decision Sciences Proceedings", pp. 115-117.
*Jack Hayya, Robert Sullivan, and Hung Chan, "An Assessment of Technological Forecasting for Regional Planning," "1976 SE Decision Sciences Proceedings", pp. 90-92.
*William Joyce and Jack Hayya, "On Two Related Problems in Regression: Sample Size and the Comparison of R2i," 1976 Western Decision Sciences Proceedings, pp. 1-5.
*K. Hung Chan and Jack C. Hayya, "An Assessment of the Wiener-Kolmogorov Forecasting Filter," "Proceedings of the Business and Economic Statistics Section of the American Statistical Association" (1976), Washington, DC: The American Statistical Association, pp. 240 243.
*Ronny A. Schaul and Jack Hayya, "An Imputation Procedure for Determining Missing Factor Levels in Analysis of Variance," "Proceedings of the Social Statistics Section of the American Statistical Association" (1976), Washington, DC: The American Statistical Association.
*K. H. Chan and Jack C. Hayya, "On the Normalcy of Financial Accounting Ratios: An Empirical Study," "1976 Decision Sciences Proceedings" (Howard C. Schneider, Editor), p. 320.
*Robert S. Sullivan, Jack C. Hayya, and George B. Kleindorfer, "Long Range Forecasting Using a Combined State Variable and Stochastic Network Model," "1976 Decision Sciences Proceedings" (edited by Howard C. Schneider), p. 365.
*Jack C. Hayya, "Confidence Bands for Price Indices," "Proceedings of the Business and Economic Statistics Section of the American Statistical Association" (1977), Washington, DC: The American Statistical Association.
*Robert S. Sullivan and Jack C. Hayya, "Stochastic PERT Network Analysis," "1977 Decision Sciences Proceedings" (Stolen and Conway, editors), p. 602.
*K. H. Chan, D. S. Wong, and J. C. Hayya, "Comparative Forecasting Techniques Using Annual Sales Data," "1977 Decision Sciences Proceedings" (Stolen and Conway, Editors), p. 536.
*Jack Hayya, K. Hung Chan, and Nicolas Gressis, "Applications of the Coefficient of Variation in Business: Statistical Inference," "Proceedings and Abstracts, 1978 Western Decision Sciences" (Wood and Coney, Editors), pp. 307-309.
*Yossie Schevel and Jack C. Hayya, "Assessing the Damage Caused by Air Pollution: A Case Study--The Long Island Expressway," "1978 Proceedings of the Northeast Regional Conference, the American Institute of Decision Sciences", pp. 23-25.
*Philip Y. Huang and Jack C. Hayya, "On Discriminant Analysis and Discrete Regression," "Proceedings of the Business and Economic Statistics Section of the American Statistical Association" (1978 Washington, DC: The American Statistical Association, pp. 625-630.
*Arunabha Sen, Jack Hayya, and William Sauer, "On the Use of Cost-Benefit Analysis in a Gerontological Management Information Systems," "1978 Decision Sciences Proceedings" (Ebert, Monroe, and Roering, editors), p. 304.
*Philip Y. Huang and Jack C. Hayya "A Comparison Between Discriminant Analysis and Discrete Regression: The 0-1 Case," "1978 Decision Sciences Proceedings" (Ebert, Monroe, and Roering, Editors), p. 246.
*Jack J. Kanet and Jack C. Hayya, "The Effects of Setting Operation Due Dates on Job Shop Performance," "AIDS 1979 New Orleans 11th Annual Convention" (Joe F. Hair, Editor), pp. 416-418.
*Jack C. Hayya, John E. Tyworth, and Paul W. Cross, "Forecast of the Second Destination Transportation for the Air Force: A Case Study," "Proceedings of 1980 SE Decision Sciences" (Oscar F. Fowler and Mary Sue Younger, editors), pp. 20-22.
*Jack C. Hayya, Paul W. Gross, and Michael J. Cleary, "Setting Reorder Levels with Stochastic Leadtime and Demand," "Proceedings of 1980 Midwest Decision Sciences" (Peter J. Athanasopoulos and Edward A. Nicholson, Editors), pp. 4-7.
*Jack C. Hayya, Erwin M. Saniga, and Ronny A. Schaul, "Uncertainty in Price Indices," "Decision Sciences 1980 Proceedings" (James C. Hershauer, Editor), Vol. 2, p. 41.
*Robert S. Sullivan and Jack C. Hayya, "Control Variate Simulation of Stochastic Project Networks," "Decision Sciences 1980 Proceedings" (James C. Hershauer, editor), Vol. 2, p. 354.
*Jack C. Hayya, Michael J. Cleary, and Ronny A. Schaul, "Approaches to Treating Lead Time in Establishing Inventory Service Levels," "Tenth Western Decision Sciences 1981 Proceedings" (Michael D. Guests and Terry Nels Lee, editors), pp. 267-270.
*Uttarayan Bagchi, Jack C. Hayya, and J. Keith Ord, "On the Distribution of Demand During Lead Time" (Abstract only), "Decision Sciences 1982 Proceedings" (Gregory P. White, editor), Vol. 2, p. 416.
*ttarayan Bagchi, J. Keith Ord, and Jack C. Hayya, "Distribution of Demand During Lead Time: Approximations and Aids to Decision Making," "Proceedings of the Business and Economic Statistical Section of the American Statistical Association" (1983), Washington, DC: The American Statistical Association, pp. 698-703.
*J. Keith Ord and Jack C. Hayya, "Compound Distributions of Fast-Moving Items and Their Approximations," (Abstract only), "Decision Sciences 1983 Proceedings", p. 921. (On microfiche.)
*Uttarayan Bagchi, Jack C. Hayya, and Chao-Hsien Chu, "Toward a Solution of the Problem of Lead-Time Variability," "Decision Sciences 1984 Proceedings", pp. 388-389. (On microfiche.)
*Chao-Hsien Chu, Jack C. Hayya, and Samuel G. Davis, "Safety Stock Problems in MRP Systems: A Review and Prospects,"AIDS 1984 Proceedings", pp. 543-534.
*Jack C. Hayya, Chian Jen Perng, David P. Christy, and Andrew Pan, "A Study of Order Splitting and Order Crossovers," "DSI 1985 Proceedings", pp. 956-958.
*Jack C. Hayya, David P. Christy, Andrew Pan, and Harry Goldman, "Order Splitting: The (s,Q) Systems," "1986 Northeast DSI Conference", pp. 125-127.
*David T. Wilson and Jack C. Hayya, "Implications of Just-In-Time (JIT) Purchasing Philosophy to Intercompany Bonding," "Proceedings of the 3rd International Marketing and Purchasing Group Research Seminar", Lyon, France (September 3-5, 1986), 22 pp.
*Jack C. Hayya, J. Keith Ord, and Andrew Pan, "On Lot-Splitting with Two Vendors: The Deterministic (s,Q) Inventory System with and without Planned Shortages," "Proceedings of the 1986 Annual Meeting of the Decision Sciences Institute (DSI)", Hawaii (Sang M. Lee, Lester Digman, and Mare J. Schniederians, Editors), pp. 1103-1105.
*Shiou-Chen Shang, Hirofumo Matsuo, Robert S. Sullivan, and Jack C. Hayya, "Operations Management, Computer-Integrated Manufacturing, and Artificial Intelligence," "Proceedings 18th Annual Conference, Southwest DSI", Houston (March 10-14, 1987) (Timothy Cronin, editor), p. 130.
*R. V. Ramasesh, J. K. Ord, and J. C. Hayya, "Comparison Between Sole- and Dual-Sourcing Stochastic Lead Time Inventory Models: Analysis of a Simplified Base Case," "Proceedings of the 1988 Annual Meeting, Decision Sciences Institute", Las Vegas, November 21-23 (Ernest C. Houck, editor), pp. 912-914.
*S. L. Kim and Jack C. Hayya, "Setup Cost Reduction Model," "Proceedings of the 1988 Annual Meeting, Decision Sciences Institute", Las Vegas, November 21-23 (Ernest C. Houck, editor), pp. 1120-1122.
*R. V. Ramasesh, J. K. Ord, and J. C. Hayya, "Order Splitting in Stochastic Inventory Systems with exponential Distributed Lead Times," "Proceedings and Abstracts DSI Eighteenth Annual Meeting, Western Region Conference", Monterey, California, March 22-24, 1989 (John Rogers, editor), pp. 199-201.
*S. L. Kim and Jack Hayya, "Setup Reduction and the Increase in Production Capacity," "1989 Annual Decision Sciences Institute Proceedings", New Orleans, LA, November, 20-22, 1989, pp. 855-857.
*B. J. Choi and Jack Hayya, "A Scheduling Algorithm to Minimize Job Completion Times in a Flow Shop," "1989 Annual Decision Sciences Institute Proceedings", New Orleans, LA, November, 20-22, 1989, pp. 1033-1035.
*X. X. He and Jack C. Hayya, "Selection of the Biasing Parameter in Ridge Regression," "1989 Proceedings of the Business and Economic Statistics Section, American Statistical Association", Washington, D.C., August 6-10, 1989, pp. 310-315.
*Hong, J.D. and J.C. Hayya, "The Deterministic Order Splitting Model with Ordering Cost as a Function of the Number of Split Orders," "Proceedings of the 1990 Decision Sciences Institute", (Betty Whitten and James Gilbert, editors), San Diego, CA, November 17-21, 1990, pp. 834-836.
*Kim, J. C. and J. C. Hayya, "Continuous Review Policies for a Two-Echelon Inventory Problem with Stochastic Demand," "Proceedings 1990 Annual Meeting, Decision Sciences Institute" (Betty Whitten and James Gilbert, editors)," November 17-21, 1990, San Diego, CA, pp. 894-896.
*Choi, B. J. and J. C. Hayya, "A Quick Least-Squares Heuristic or the Flowshop Problem, "Proceedings 1990 Annual Meeting, "Decision Sciences Institute", (Betty Whitten and James Gilbert, editors)," November 17-21, 1990, San Diego, CA, pp. 1570-1572.
*Kim, J. and J. C. Hayya, "Order Splitting with Erlang Lead Times," "Proceedings 1990 Annual Meeting, Decision Sciences Institute", (Betty Whitten and James Gilbert, editors), November 17-21, 1990, San Diego, CA, pp. 837-839.
*Hong, J. D. , J. C. Hayya, and V. A. Mekler, "Effect of Service Levels on the Reorder Points in an (si, Q) System under Stochastic Lead Time and Time-Dependent Demand," "Proceedings of the First International Conference, Decision Sciences Institute", Brussels, Belgium, June 24-26, 1991, pp. 208-211.
*Kim J., J. C. Hayya, and J. K. Ord, "Bounds of the Tolerable Increase in Ordering Cost in Stochastic Order Splitting Models," "Proceedings 1991 DSI Conference" (Steve Melnyk, editor), Bal Harbor, FL, November 24-27, 1991, pp. 1279-1281.
*Hong, J.D. and J.C. Hayya, "Zero Inventories (ZI): The Combined Effect of Setup Reduction and the Simultaneous Increase in Carrying Cost," "Proceedings of the 1992 Southeast Decision Sciences Institute Conference", Savannah, GA, Feb. 19-21, 1992, pp. 327-330.
*He, X.X. and J.C. Hayya, "Order Crossover: An Overview," "Proceedings of the Twenty-eighth Annual Meeting of the Institute of Management Science (TIMS) Southeastern Chapter", Myrtle Beach, SC, 1992, pp. 232-235.
*Hong, J.D., S.H. Xu, and J.C. Hayya, "Process Quality Improvement in a JIT Environment," "Proceedings of the 1992 Decision Sciences Institute", San Francisco, November 20-24, 1992, pp. 1629-1631.
*Hong, J.D. and J.C. Hayya, "Dynamic Lot Sizing with Work-in-Process Inventories and Imperfect Process Quality," "Proceedings Second International Meeting, Decision Sciences Institute", Seoul, Korea, June 14-16, 1993, pp. 478-481.
*Hong, J.D. and J.C. Hayya, "An (s, Q) vs. a (t, Qj) Policy for an Integrated Production-Inventory Model in Single-Stage Manufacturing," "1993 Proceedings, Decision Sciences Institute", Vol. 3, pp. 1393-1395, Annual Meeting, November 21-23, 1993, Washington, D.C., (David F. Rogers and Amitabh S. Raturi, Proceedings Coordinators).
*Hong, J.D. and J.C. Hayya, "An Integrated Production and Purchase Lot Sizing Model with Work-in-Process Inventories," "1994 Proceedings, Decision Sciences Institute", Vol. 3 , pp. 1743-1745, Annual Meeting, November 19-22, 1994, Honolulu, Hawaii.
*He, X.X. and J.C. Hayya, "The Impact of Lead-Time Variability," "1994 Proceedings, Decision Sciences Institute", Vol. 3, pp. , Annual Meeting, November 19-22, 1994, Honolulu, Hawaii.
*Kim, Se-Kwon, Seung-Lae Kim, and Jack C. Hayya, "A Note on the Inventory Models with Goodwill Loss due to Stockouts," "1995 Proceedings of the Decision Sciences Institute", November 20-22, Boston, Massachusetts, Volume 3, pp. 1350-1352.
*Zeng, Amy Z. and Jack C. Hayya, "Improving Service Levels Subject to a Budget Constraint in Continuous (s,Q) Inventory Models," "Proceedings of the Twenty-Fifth Annual Meeting of the Western Decision Sciences Institute", (Thomas E. Callarman, Editor), April 2-6, 1966, Seattle, Washington, pp. 442-444.
*Hayya, Jack C. and Xin X. He,"JIT: Food vs. Durable Goods," "Proceedings of 1996 Manufacturing and Service Operations Management (MSOM)", Institute of Operations Research and the Management Sciences (INFORMS), the Amos Tuck School of Business Administration, Dartmouth College, June 24-25, 1996, pp.155-160.
*Hayya, Jack C. and Xin X. He, "JIT: Food vs. Durable Goods," "Proceedings of 1996 Manufacturing and Service Operations Management (MSOM)", Institute of Operations Research and the Management Sciences (INFORMS), the Amos Tuck School of Business Administration, Dartmouth College, June 24-25, 1996, pp. 155-160.
*He, X.X., and J.C. Hayya, "Field Studies of JIT Production and its Quality Implications in the Food Industry," "1996 Proceedings Decision Sciences Institute (Vol. 3), 27th Annual Meeting" (Ronald J. Ebert, Editor), Orlando FL, November 24-26, pp. 1493-1495.
*Hong, J.D. and J.C. Hayya, "A Comparison of Integrated Production-Replenishment Policies in Single-Stage Manufacturing," "1996 Proceedings Decision Sciences Institute" (Vol. 3), 27th Annual Meeting (Ronald J. Ebert, Editor), Orlando FL, November 24-26, pp. 1370-1372.
*Geunes, Joseph P. and Jack C. Hayya, "The neswsvendor model: a dynamic policy for infinite-horizon inventory analysis," "1997 Proceedings, Decision Sciences Institute", 1997 meeting, November 22-25, San Diego, CA, pp. 1355-1357 (Vol. 3).
*Hong, Jae-Dong and Jack C. Hayya, "Commonality in an integrated production-inventory model for a two-product single-facility system," "1997 Proceedings, Decision Sciences Institute", 1997 meeting, November 22-25, San Diego, CA, pp. 1287-1289 (Vol. 3).
*Xin James He and Jack Hayya, “Food Supply Chains,” "1998 Proceedings of Decision Sciences Institute", (Vol. 3), November 1998, Las Vegas, Nevada, pp. 1668-70.
*Hayya, Jack C., Chao-Hsien Chu, and Xin (James) He, “Critical success factors for the supply chain process,” "2001 Proceedings Western Decision Sciences Institute 30th annual meeting", April 3-7, 2001, Vancouver, Canada, pp. 861-863.
*Chao-Hsien Chu, Xin James He, and Jack Hayya “A Data Warehousing Approach to Supply Chain Integration,” "2001 Proceedings of Decision Sciences Institute", San Francisco, CA, November 19-22, 2001, pp.186-188.
*Chatfield, Dean C., Terry P. Harrison, and Jack C. Hayya (2001). "SISCO: A Supply Chain Simulation Tool Utilizing SILK and XML." "Proceedings of the 2001 Winter Simulation Conference", Arlington, VA., December 9 -12, 2001, pp. 614 - 622.
*Chatfield, Dean C., Terry P. Harrison, and Jack C. Hayya (2001). "SISCO: A Supply Chain Simulation Tool Utilizing SILK and XML." "Proceedings of the 2001 Winter Simulation Conference", Arlington, VA., December 9 -12, 2001, pp. 614 - 622.
*Chatfield, Dean C., Jeon G. Kim, Terry P. Harrison, and Jack C. Hayya (2002), "Order Flow in a Serial Supply Chain." "Proceedings of the 2002 Meeting of the Decision Sciences Institute", San Diego, CA, November 23-26, 2002.
*Xin James He and Jack Hayya, “Lead-Time Variability and Inventory Cost,” "2002 Proceedings of Decision Sciences Institute", 33rd annual meeting of the Decision Sciences Institute, San Diego, CA, November 23-26, 2002, pp. 1922-1927.
*Hayya, Jack C., Dean C. Chatfield, Xin He, Chao-Hsien Chu (2003). "Supply Chain Information Technology Metrics." "Proceedings of the 32nd Annual Meeting of the Western Decision Sciences Institute", (Miles G. Nicholls, ed.) Island of Kauai, HI, April 15-19, 2003, pp. 500 - 503.
*Kim, Jeon G., Jae D. Hong, Daewon Sun, and Jack C. Hayya, “On a redefinition of lead time in stochastic lead-time inventory systems,” "Proceedings of the 34th Annual Meeting of the Decision Sciences Institute", Washington, D.C., November 22-25, 2003, (six pages in proceedings CD).
*Hong, Jae-Dong and Jack C. Hayya, “Visual Basic applications for integrated production-replenishment policies,” "Southeast Decision Sciences Institute Proceedings" (ed. Emmanuel Omojokun,” Williamsburg, VA, February 26-28, 2003, pp. 280-282.
*Chatfield, D.C., T.P. Harrison, and J.C. Hayya. 2004. XML-Based Supply Chain Simulation Modeling. "Proceedings of the 2004 Winter Simulation Conference", ed. R.G. Ingalls, M. D. Rossetti, J. S. Smith, and B. A. Peters, 1485-1493. Piscataway, New Jersey: Institute of Electrical and Electronics Engineers.
*Jack C. Hayya, Dean C. Chatfield, Terry P. Harrison, and Jeon G. Kim., (2005), “Supply chain management: forecasting lumpy demand, “ "Proceedings of the International Symposium on stochastic models in reliability, safety, security and logistics" (SMRSSL'05), February 15-17, 2005 - Beer Sheva, Israel, pp. 164-168.
*Bagchi, U. and J.C. Hayya, “RFID, Velocity Management, ands Stochastic Dominance,” Beijing, China, August 2005.
*Hayya, J.C., U. Bagchi, X. James He, J.G. Kim, & A.C. Pan, “Supply chain analysis: RFID & inventory control,” at the annual meeting, "Decision Sciences Institute (DSI) Conference", San Francisco, November 19-22, 2005.
*Chatfield, Dean C., Terry P. Harrison, and Jack C. Hayya (2005), "SCML: A Generalized Supply Chain Description Language." "Proceedings of the 2005 Meeting of the Decision Sciences Institute", San Francisco, CA, November 19-22, 2005.


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