Informs 2015

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INFORMS Philadelphia – 2015
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4 - A New Framework for Sustainability Measurement
Anthony Afful-Dadzie, University of Ghana, P.O. Box LG 78,
Legon, Accra, Ghana,
This presentation explores a new sustainability measurement and scoring system
for assessing the efforts of organizations at meeting sustainability targets. Based
on TOPSIS, the proposed measurement and scoring system incorporates all three
sustainability dimensions and enables the establishment of a threshold below
which an organization is considered to have failed a sustainability test. A time-
independent threshold is also introduced to help compare performance over time.
5 - Government Intervention and Technovation Performance:
An Empirical Study of Soes from Mainland China
Huan Liu, PhD, Xi’an Jiaotong University, 28# Xianning West
Road, Shaanxi Province, Xi’an, 710049, China,
, Jiannan Wu
We use a comprehensive provincial-level panel data set of 30 provinces during
2005-2012. Our results show that project funding and tax break at the provincial
level have no impact on new products sales. Project funding has a negative impact
on invention patents, by constrast, tax break has a positive impact on invention
patents. The interaction term of project funding and tax break has an invert U-
shaped relationship with new products sales, but it has no impact on invention
patent.
TD61
61-Room 111B, CC
Environmentally Responsible
Operations Management
Sponsor: ENRE – Environment I – Environment and Sustainability
Sponsored Session
Chair: Arda Yenipazarli, Assistant Professor of Operations Management,
Georgia Southern University, COBA 2224, Statesboro, GA, 30460,
United States of America,
1 - Competitive Positioning and Pricing of Green Products with
Multiple Environmental Attributes
Arda Yenipazarli, Assistant Professor of Operations Management,
Georgia Southern University, COBA 2224, Statesboro, GA, 30460,
United States of America,
To address consumers’ sustainability-related product concerns, a thorough
approach to improving the environmental profile of one’s products is required.
Using one dimension of green may hide possible trade-offs and overlook the fact
that consumers’ preferences exhibit different orders in different green attributes.
We study a duopoly model that explicitly incorporates multiple environmental
attributes into the green product positioning and pricing, along with the trade-offs
among them.
2 - Product Line Design: The Impact of Consumers’ Varied
Perceptions of Recycled Content
Monire Jalili, University of Oregon, 1208 University of Oregon,
Eugene, OR, United States of America,
Nagesh Murthy, Tolga Aydinliyim
We consider a monopolist selling ordinary and green product versions to
consumers whose differential (dis)utility vary by consumer type, and is a function
of the firm’s quality decision (i.e., the amount of recycled content in the green
version.) We discuss how the optimal quality and pricing decisions drive demand
and profit and whether/when it is optimal for the firm to only offer the green
version (go completely green).
3 - Replenishment Decisions of Perishable Products under Price and
Emissions Sensitive Demand
Gokce Palak, Assistant Professor Of Operations Management,
Shenandoah University, Harry F. Byrd, Jr. School of Business,
Winchester, VA, 22601, United States of America,
We extend economic lot sizing models for age dependent perishable products to
maximize profit and minimize emissions. This model captures the tradeoffs
between supplier and mode selection decisions, profits and emissions, and
transportation lead time and remaining shelf life of products. We analyze impacts
of price and emissions sensitive demand on the replenishment decisions.
4 - Maximizing Sustainability of Ecosystem Model through
Socio-economic Policies
Urmila Diwekar, President, Vishwamitra Research Institute, 2714
Crystal Way, Crystal Lake, IL, 60012, United States of America,
, Kirti Yenkie, Rohan Doshi,
Pahola Benevades, Heriberto Cabezas
Current practices in natural resources consumption are unsustainable and may
eventually lead to ecosystem extinction. This paper uses a simple mathematical
model of an integrated ecological and economic system representing our planet’s
sectors. The aim of the project is to maximize the sustainability of this system,
using Fisher Information as a measure of sustainability, and derive socio-
economic policies using multivariable optimal control techniques.
TD62
62-Room 112A, CC
Optimization on Power Grid Application
Cluster: Energy Systems: Design, Operation, Reliability
and Maintenance
Invited Session
Chair: Chaoyue Zhao, Oklahoma State University, 322G Engineering
North, Stillwater, OK, United States of America,
1 - Risk-based Admissibility Assessment of Wind Generation
Integrated into a Bulk Power System
Cheng Wang, Tsinghua University, 3-211, West Main Building,
Beijing, China, Feng Liu, Wei Wei,
Jianhui Wang, Shengwei Mei
In this talk, a risk-based admissibility assessment approach is proposed to
quantitatively evaluate how much wind generation can be accommodated by the
bulk power system under a given UC strategy. Firstly, the operational risk brought
by wind generation is developed as an admissibility measure. Then a risk-
minimization model is established to mathematically characterize the admissible
region. Simulations demonstrate the effectiveness and efficiency of the proposed
methodology.
2 - Strong Formulations for Unit Commitment Problem
Kai Pan, PhD Student, University of Florida, 411 Weil Hall,
Gainesville, Fl, 32608, United States of America,
Yongpei Guan
In this talk, we will present the strong formulations for unit commitment problem
under different settings. Technical proofs are provided accordingly. Our
computational experiments verify the effectiveness of proposed strong
formulations.
3 - A Scalable Decomposition Method for the Two-Stage Stochastic
Unit Commitment Problem
Farzad Yousefian, Postdoctoral Research Associate, Penn State,
333 Logan Ave., Apt. 307, State College, PA, 16801, United States
of America, , Wendian Wan, Uday Shanbhag
We consider a two-stage stochastic unit commitment problem modeled as a large-
scale mixed integer nonlinear optimization problem. The state-of-the art
commercial packages, e.g. CPLEX, do not scale with the number of the units and
scenarios. Motivated by the structure of the KKT system and employing the ideas
of Schur complements, we propose a multiphase primal-dual algorithm that scales
with the size of the scenarios. Preliminary simulation results are presents.
TD63
63-Room 112B, CC
Operations Management II
Contributed Session
Chair: Xiaoyan Qian, PhD, The University of Auckland, 486 Parnell
Road, Auckland, New Zealand,
1 - Flexible Commitment Contract in the Presence of Goodwill-
sensitive Customers
Xiaoya Han, University of Science and Technology of China,
No. 96, Jinzhai Road, Hefei, China, ,
Yugang Yu
This paper focuses on a retailer’s dynamic decision problem: how to determine a
minimum commitment at the beginning of the planning horizon and periodically
variable order quantities to maximize its profit when facing goodwill-sensitive
customers. We obtain that the next-period goodwill decreases in the current-
period one, and the goodwill monotonically converges to a constant steady-state
one over time. Moreover, we find that the steady-state goodwill may decrease in
minimum commitment.
TD63