Informs 2015

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INFORMS Philadelphia – 2015
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28-Room 405, Marriott
Market Design
Cluster: Auctions
Invited Session
Chair: Gabriel Weintraub, Professor, Columbia University, Uris Hall,
New York, NY, 10027, United States of America,
1 - Incentive Issues in Paired Organ Donation
Eduardo Azevedo, Assistant Professor, Wharton, 3620 Locust
Walk, Wharton, SHDH 1400, Philadelphia, PA, 19102,
United States of America, ,
Nikhil Agarwal, Itai Ashlagi, Clayton Featherstone
In the last few years a new type of organ donation has arisen. In a paired kidney
exchange two recipients with incompatible live donors receive organs from each
other’s live donor. Sometimes transactions involve more recipients and/or donors.
While many exchanges happen in a decentralized way, others happen in large
centralized exchanges. We empirically examine how agents in these markets
respond to incentives and whether incentives are misaligned with social goals.
2 - Optimal Procurement Mechanisms for Differentiated Products
Gabriel Weintraub, Professor, Columbia University, Uris Hall,
New York, NY, 10027, United States of America,
Daniela Saban
We study the mechanism design problem faced by a buyer that selects an
assortment of differentiated products and unit prices from a set of suppliers with
private costs. Then, consumers can choose their most preferred product from this
set. The buyer maximizes consumer surplus; to do so, he must balance the trade-
off between variety and price competition. We characterize the optimal
mechanism and use these results to analyze practical mechanisms.
3 - Efficiency and Stability in Large Matching Markets
Yeon-koo Che, Columbia University, 420 West 118th Street,
1029 IAB, New York, NY, United States of America,
, Olivier Tercieux
We study efficient and stable mechanisms in matching markets when the number
of agents is large and individuals’ preferences and priorities are drawn randomly.
When agents’ preferences are correlated over objects, the prevailing mechanisms
are either inefficient or unstable even in the asymptotic sense. We propose a
variant of deferred acceptance which is asymptotically efficient, asymptotically
stable and also asymptotically incentive compatible.
4 - Market Fragmentation
Rakesh Vohra, University of Pennsylvania, 3718 Locust Walk,
Philadelphia, PA, United States of America,
Ahmad Peivandi
Centralized markets reduce the costs of search for buyers and sellers. Their
`thickness’ increases the chance of of order execution at competitive prices. In
spite of the incentives to consolidate, some markets, have fragmented into
multiple trading venues. We argue in this paper that fragmentation is an
unavoidable feature of any centralized exchange. Our argument introduces a new
way to think about participation in a mechanism when the outside option is
endogenous.
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29-Room 406, Marriott
Joint Session Analytics/CPMS: Panel Discussion
on OR vs Analytics: Experts Weigh in on the
Case for Change
Sponsor: Analytics/CPMS
Sponsored Session
Chair: Glenn Wegryn, Principal, Analytic Impact LLC, 7555 De Mar Rd,
Cincinnati, OH, 45243, United States of America,
1 - Panel Discussion on OR vs Analytics: Experts Weigh in on the
Case for Change
Moderator: Glenn Wegryn, Principal, Analytic Impact LLC, 7555
De Mar Rd, Cincinnati, OH, 45243, United States of America,
, Panelists: Robert Rose, Anne Robinson,
Jack Levis, Don Kleinmuntz, Thornton May, David Dittmann,
Jeffrey Camm
Operations Research? Management Science? Analytics? What’s in a brand name?
How has the emerging field of Analytics impacted the Operations Research
Profession? Is Analytics part of OR or the other way around? Is it good, bad,
relevant, a nuisance or an opportunity for the OR profession? Is OR just
Prescriptive or is it something more? In this panel discussion, we will explore
these topics in a session with some of the leading thinkers in both OR and
Analytics. Be sure to attend to have your questions answered on these highly
complementary and valuable fields.
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30-Room 407, Marriott
Creating and Sustaining an Analytics Advantage
Sponsor: CPMS
Sponsored Session
Chair: Peter Bell, Ivey Business School at Western University, 1255
Western Road, London, ON, N6G 0N1, Canada,
1 - Advanced Analytics at Verizon Wireless Supply Chain
Anne Robinson, Verizon Wireless,
, Mustafa Dogru
Supply Chain Advanced Analytics Team carries out projects in the areas of
forecasting, inventory optimization, assortment planning, etc. We give an
overview of our engagement approach with the internal business units, discuss
how our models are implemented and transferred to the business, and conclude
with the lessons learned.
2 - Capability Portfolio Analyses Tool (CPAT)
Pooja Dewan, BNSF Railway, Fort Worth TX 76092,
United States of America,
The Capability Portfolio Analyses Tool (CPAT) delivers unparalleled insight into
multi-decadal modernization planning for the Army’s large ground combat fleet.
This first-of-its-kind capability optimizes modernization plans while considering
the complex interrelationship between performance, budgets, schedules,
production capacities, etc. Over 40 studies have been completed- informing
stakeholders up to Army Vice Chief of Staff, OSD, and Army Acquisition
Executive levels.
3 - The Analytics Advantage: Some Reflections from Business
and Policy-making
Doug Samuelson, InfoLogix, Inc., 8711 Chippendale Court,
Annandale, VA, 22003, United States of America,
Analytics / OR / MS (or whatever we want to call it) involves injecting more
intellectual rigor into decision-making. Key elements of how to do this include
using the decision-makers’ language, understanding their needs and time frame,
and building multiple constituencies of decision-makers who trust your
recommendations. This is not as obvious in practice as it sounds in summary.
4 - Sustaining an Analytics Advantage
Peter Bell, Ivey Business School at Western University,
1255 Western Road, London, ON, N6G 0N1, Canada,
Many claim that the use of analytics can create a competitive advantage but
research suggests that any advantage created is often fleeting: most analytics is
easily replicated. There are, however, examples of firms that have sustained a
competitive advantage through analytics for years, even decades. How have they
done this? What are the lessons for analytics leaders? This presentation will
provide examples that may provide lessons on how to sustain an advantage
created through analytics.
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31-Room 408, Marriott
Interactions Between Learning and Decision Making
Sponsor: Data Mining
Sponsored Session
Chair: Theja Tulabandhula, Xerox Research Centre India, Bangalore,
Bangalore, India,
1 - The Forest or the Trees? Tackling Simpson’s Paradox with
Classification and Regression Trees
Galit Shmueli, Professor, National Tsing Hua University, Institute
of Service Science, 101, Sec. 2, Kuang-Fu Road, Hsinchu, 30013,
Taiwan - ROC, , Inbal Yahav
Social science research often uses observational data to study causality because
randomized experiments are impossible, unethical or expensive. Simpson’s
paradox arises in observational causal studies, due to confounders. We propose
using Classification & Regression Trees to detect Simpson’s paradox in large
observational data. The approach relies on the tree structure and the location of
the cause vs. the confounders in the tree. We illustrate our approach on several
real applications.
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