2016 INFORMS Annual Meeting Program

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INFORMS Nashville – 2016
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202B-MCC
Empirical Studies in Operations Management
Sponsored: Manufacturing & Service Oper Mgmt
Sponsored Session
Chair: Suresh Muthulingam, The Pennsylvania State University,
University Park, PA, United States,
1 - Are Patients Patient? The Role Of Time To Appointment On
Patient Flow
Diwas S KC, Emory University,
We examine the effect of wait to appointment on patient flow - specifically, on a
patient’s decision to schedule an appointment and arrive for that session.
Contrary to previously-reported findings, our results suggest that some wait can
be beneficial for reducing no-shows.
2 - Product Complexity, Network Position, And Product Innovation
Yingchao Lan, PhD Candidate, The Ohio State University,
2100 Neil Avenue, Fisher Hall 252C, Columbus, OH, 43210,
United States, John Gray,
Aravind Chandrasekaran, Brett Massimino
Despite a consensus that a firm’s extended product development network plays a
critical role in its innovation performance, empirical evidence linking network
position, product complexity, and product innovation performance is scarce. We
provide a longitudinal study employing secondary data to investigate these
relationships.
3 - Managerial Attention, Reminders And The Energy Efficiency Gap
Enno Siemsen, University of Wisconsin-Madison,
Suvrat Dhanokar
Reminders have been shown to at the individual level increase adherence to
medical prescriptions and savings goals. We demonstrate that reminders also help
to increase environmental project implementation at the organizational level.
Using data from a state technical assistance program, we also demonstrate the
contextual effects that make reminders more effective.
4 - Does Learning From Inspections Affect Environmental
Performance? - Evidence From Unconventional Oil And Gas Wells
Suresh Muthulingam, The Pennsylvania State University,
State College, PA, United States,
Vidya Mani
Manufacturing firms increasingly face environmental inspections that determine
whether their operations comply with environmental regulations. We investigate
how firms learn from their own inspection experiences as well as from the
experiences of other firms. We identify the characteristics of the inspection
experience that enable firms to improve their environmental performance.
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202C-MCC
Managing Finances and Risk in Supply Chains
Sponsored: Manufacturing & Service Oper Mgmt, iFORM
Sponsored Session
Chair: Panos Kouvelis, Washington University in St. Louis,
One Brookings Drive, Box 1156, Saint Louis, MO, 63130,
United States,
Co-Chair: Wenhui Zhao, Associate Professor, Shanghai Jiao Tong
University, 1954 Huashan Road, Shanghai, 200030, China,
1 - Optimal Monitoring In Collateralized Lending
Dan Andrei Iancu, Stanford University, Stanford, CA, United
States, , Nikolaos Trichakis, Do Young Yoon
Collateralized lending agreements critically rely on the lender’s ability to monitor
the value of a borrower’s pledged assets, and to decide when these are sufficient
to cover the outstanding loan. To further complicate matters, lenders often have
to take such decisions under limited information concerning the assets’ future
value. Our work focuses on the problem of choosing a monitoring and liquidation
policy for a lender when a finite number of monitoring times are possible during
the life of the loan. We develop a robust optimization model and provide
characterizations for the optimal choices involved.
2 - Financial Pooling In A Supply Chain
Alex Song Yang, London Business School, London,
United Kingdom, , Ming Hu, Qu Qian
Trade credit is common in supply contracts. We find the embedded stretch option
of trade credit (i.e., buyers paying suppliers after the agreed due day) allows
supply chain partners to pool their liquidity. As such, even as the supplier’s
financing costs are strictly higher than the buyer’s, the buyer may still demand for
trade credit. In addition, trade credit is more efficient when the supplier’s cost for
collecting trade credit is low (e.g., when the retailer trusts the supplier), when the
supplier’s financing cost is high when facing liquidity shocks, or when the buyer
has a more diversied supplier portfolio. Finally, reverse factoring further enhances
this pooling benefit.
3 - Effective Donor Fund Allocation For Health Product Procurement
Iva Petrova Rashkova, Washington University in St Louis,
Jeremie Gallien
Motivated by Global Fund grant recipients, we study the procurement of health
products subject to an uncertain funding schedule. Such schedule includes either
periodic lump-sum disbursements or per-unit subsidy agreements, or both. The
objective is to minimize expected health costs in the presence of random demand
and lost sales inventory dynamics. We design near-optimal financing mechanisms
for the allocation of donor funds, characterize their theoretical and computational
performance, and discuss managerial insights.
4 - Who Should Finance The Supply Chain: Impact Of Credit Ratings
on Supply Chain Decisions
Wenhui Zhao, Associate Professor, Shanghai Jiao Tong University,
1954 Huashan Road, Antai College of Economics and
Management, Shanghai, 200030, China,
Panos Kouvelis
We study the impact of credit ratings on supply chain decisions. The retailer can
use bank loans and/or trade credits, while the supplier can use bank loans and/or
retailer’s early payment. The bank’s risk premium decreases in the borrower’s
credit rating. We show if the supplier’s credit rating is above a threshold, she will
offer zero interest rate trade credits and the retailer will use trade credits only.
Otherwise, she will set positive rate so that the retailer uses bank loans only or
combines them with trade credits. While a supplier always benefits by working
with good credit rating retailers, it may not be necessarily true for the retailer,
who may benefit by working with low credit rating suppliers.
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203A-MCC
Scheduling III
Contributed Session
Chair: Sangoh Shim, Hanbat National University, Dept of Business
Administration, Deokmyung-Dong, Daejeon, 305-719, Korea,
Republic of,
1 - Integrated Pricing And Production Scheduling Under
Make-to-order Strategy
Guohua Wan, Professor, Shanghai Jiao Tong University, 1954
Huashan Road, Antai College of Economics and Management,
Shanghai, 200030, China, Qing Yue,
Zhi-Long Chen
we consider a joint pricing and production scheduling problem where the
manufacturing firm produces a number of customized products from a base
product. At the beginning of each period in a planning horizon, the firm sets the
price of the base product as well as the prices for the customized products, and
processes the accepted orders on a single production line, so as to maximize the
total profit of the orders over the planning horizon. Three specific problems with
different order acceptance and processing modes are studied, and computational
complexity and solution algorithms are presented.
2 - Optimal Course Scheduling For United States Air Force
Academy Cadets
Christopher D. Richards, Colorado School of Mines, Golden, CO,
United States,
The United States Air Force Academy spends months scheduling approximately
1,500 courses and 4,000 cadets. By building alternatives based on department
preferences, we develop an integer program to generate course and cadet
schedules which fulfill registration, department and institution needs. Specifically,
we observe enrollment and staffing limits, military time requirements, and
athletic commitments. Efficient formulation and solution methods including
heuristics provide quick turnaround for an iterative process between departments
and the registrar. Easily resolving scheduling conflicts ensures all cadets meet
crucial commissioning deadlines.
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