2016 INFORMS Annual Meeting Program

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INFORMS Nashville – 2016
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4 - Being On The Productivity Frontier: Identifying “Triple Aim
Performance” Hospitals
Sriram Venkataraman, University of South Carolina,
Aleda Roth, Anita L Tucker, Jon A Chilingerian
Hospital decision makers may face tradeoffs that make it difficult to achieve
relatively high performance simultaneously on cost, clinical quality and patient
experience. We empirically examine the association between having high
performance on any of the three criteria on the probability of being a U.S. News &
World Report honor roll hospital. Surprisingly, we find a significant negative
relationship exits between being an honor roll hospital and achieving high
performance outcomes on any of the three TAP criteria. Furthermore, we find
that the percent of physicians employed by the hospital has a positive and
significant effect on being a TAP hospital.
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205A-MCC
Behavioral Models in Service Operations
Sponsored: Manufacturing & Service Oper Mgmt, Service
Operations
Sponsored Session
Chair: Guillaume Roels, UCLA, Anderson School of Management,
Los Angeles, CA, 90095, United States,
1 - Pricing With Consumer Optimism And Quality Perception:
From Experiment To Theory
Rim Hariss, Massachusetts Institute of Technology, 254Windsor
Street, Apt 2L, Cambridge, MA, 02139, United States,
, Georgia Perakis, Wichinpong Sinchaisri,
Yanchong Zheng
We study how consumers’ optimism about future markdowns and their quality
perceptions influence a firm’s optimal markdown pricing strategy. We
experimentally elicit the relationship between consumers’ perceived quality of a
product and the product’s price information (e.g., initial price, discount, final
selling price). We estimate a functional relationship from the data and incorporate
this relationship into consumers’ purchase behavior. We then characterize the
firm’s optimal policy given that consumers form price-based quality perceptions
and may hold inaccurate expectation of the level of future markdown.
2 - Impact Of Server Behavior On The Performance Of
Queueing Systems
Masha Shunko, University of Washington,
Multi-server single-queue (SQ) systems may outperform multi-server parallel-
queue (PQ) systems due to the pooling effect. We model and analyze the impact
of human server behaviors (namely, slowdown due to free riding and workload-
dependent service rate) on the performance of SQ and PQ systems and derive
how large the behavioral impacts should be to outweigh the benefits of pooling.
3 - Pooling Queues With Work Averse Servers
Guillaume Roels, UCLA, , Mor Armony,
Hummy Song
Contrary to the classical theory of operations management, recent case studies in
retail, call centers, and healthcare indicate that pooling queues may not
necessarily result in less expected work in process. In this paper, we propose that
this phenomenon may arise when servers are work averse and have some
discretion over their choice of service capacity. We distinguish two types of work
aversion, namely workload aversion and busyness aversion, and show that
dedicated configurations yield less expected work in process than pooled
configurations when servers exhibit high degrees of workload aversion or low
degrees of busyness aversion.
SB36
205B-MCC
Incentives and Risk in Supply Chains
Sponsored: Manufacturing & Service Oper Mgmt, Supply Chain
Sponsored Session
Chair: Karan Girotra, INSEAD, Fontainebleau, France,
Co-Chair: Simone Marinesi, Wharton, Philadelphia, PA, United States,
1 - Fleet Management For Healthcare Delivery In Africa: Vehicle
Ownership And Contracting Models
Sang-Hyun Kim, Associate Professor, Yale University, New Haven,
CT, United States, , Li Chen, Hau Leung Lee
In this paper we study an innovative healthcare product delivery system that
Riders for Health, a nonprofit organization based in UK, has implemented in a
number of African nations. Health products are delivered to rural areas via
motorcycles in difficult transportation conditions, and therefore it is critical to run
an effective vehicle maintenance program. Riders for Health experimented with
different contractual agreements with government agencies. We build a model
based on reliability theory and contract theory that captures the essence of the
problem that Riders faced, and discuss managerial insights that the model
predicts.
2 - Learning (or Not) From Precursors To Disasters
Heikki Peura, Imperial College, London, United Kingdom,
, Nitin Bakshi
Disasters are invariably preceded by more frequent precursor events. These events
embed valuable information about the likelihood of the root cause of a disaster,
and thereby facilitate risk assessment. But to learn from precursors, a managing
firm typically relies on the reports of a contractor, who is often also responsible
for mitigating the occurrence of these incidents. We show how firms may fail to
learn from precursor events due to the resulting intertwined problems of moral
hazard (on risk mitigation) and hidden information (on reporting precursors).
3 - Supply Disruptions And Optimal Network Structures
Kostas Bimpikis, Stanford, , Ozan Candogan,
Shayan Ehsani
We study multi-tier supply chain networks in the presence of disruption risk.
Firms compete in one of K production stages and prices of intermediate goods are
set so that markets clear. We characterize equilibrium prices, profits, and sourcing
decisions and explore how they are affected by the network structure. Also, we
identify the network structures that maximize aggregate profits, welfare, and
consumer surplus. Interestingly, these networks can be ranked in terms of how
“balanced” the supply chain is. Finally, we consider endogenous chain formation
and argue that it leads to inefficiencies both in terms of the number of firms that
enter and in terms of the structure of the resulting networks.
SB37
205C-MCC
Supply Chain Topics
Sponsored: Manufacturing & Service Oper Mgmt, Supply Chain
Sponsored Session
Chair: Robert Bray, Kellogg School of Management, 830 Hinman Ave.
Apt. 2S, Evanston, IL, 60202, United States,
1 - Buyer Intermediation In Supplier Finance
Tunay Tunca, Professor, Unversity of Maryland, College Park, MD,
20910, United States, Weiming Zhu
We analyze the role and the efficiency of buyer intermediation in supplier
financing (BIF). We theoretically demonstrate that BIF can significantly improve
the supply chain surplus over traditional financing. Using data from a large
Chinese online retailer, we estimate model parameters, empirically verify the
theory, and predict efficiency gains.
2 - Shock Spillover And Financial Response In Supply Chain
Networks: Evidence From Firm-Level Data
Andrew Wu, Assistant Professor of Tech, Operations, Finance,
Ross School of Business, University of Michigan, Ann Arbor, MI,
United States, Jun Li
Using machine learning methods on firm-level textual disclosures, this research
studies the propagation of firm-specific production shocks through supply chain
relationships, and the stock market reactions to such propagated shocks.
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