2015 Informs Annual Meeting

SA48

INFORMS Philadelphia – 2015

2 - The Impact of Online Reviews on Demand for Outpatient Care: An Empirical Study Yuqian Xu, NYU Stern School of Business, 44 West 4th Street,

3 - Design Implications of Extended Producer Responsibility: Durable or Recyclable Products? Ximin (Natalie) Huang, Scheller College of Business, Georgia Institute of Technology, 800 West Peachtree, NW Atlanta, GA, United States of America, ximin.huang@scheller.gatech.edu, Beril Toktay, Atalay Atasu We consider a monopolist who has two product design options to manage the end-of-life costs/revenues associated with its products: making products more durable or recyclable. We explore how the recyclability and durability choices are affected by the requirements of take-back legislation. 4 - The Impact of Ecolabeling on the Green Product Line Karthik Murali, kmurali4@illinois.edu, Michael Lim, Nicholas Petruzzi The use of ecolabels allows firms to convey credible information about environmental attributes in their products to consumers. In a competitive setting, we study the role of a firm’s credibility and certification from external agencies with differing objectives on a firm’s ecolabeling choices and ensuing consequences from a triple bottom line perspective using game-theoretic models. SA49 49-Room 105B, CC Frontiers of Supply Chain Research Sponsor: Manufacturing & Service Oper Mgmt/Supply Chain Sponsored Session Chair: Karen Zheng, MIT, 77 Massachusetts Avenue, Cambridge, MA, 02139, United States of America, yanchong@mit.edu 1 - Impact of Technology Adoption on Product Assortment Planning Duo Shi, Washington University in St. Louis, St. Louis, United States of America, dshi@wustl.edu, Fuqiang Zhang, Lingxiu Dong This paper studies the impact of technology adoption on firms’ product assortment planning. Consider two types of production technologies, dedicated technology and flexible technology. We aim to address the following questions that may arise when the firm contemplates the adoption of the flexible technology: What is the optimal product assortment under different technology choices? How does the adoption of flexible technology affect the firm’s assortment decision? 2 - Omnichannel Retail Operations Fei Gao, The Wharton School, University of Pennsylvania, 3730 Walnut Street, 500 Jon M. Huntsman Hall, Philadelphia, United States of America, feigao@wharton.upenn.edu, Xuanming Su Omnichannel consumers strategically make use of online and offline channels to gather information and purchase products. We study different omnichannel information strategies and their profit implications for firms. 3 - Quality in Supply Chain Encroachment Xiaoyang Long, PhD Student, Hong Kong University of Science and Technology, Hong Kong - PRC, xlongaa@connect.ust.hk, Albert Ha, Javad Nasiry We study a supply chain with manufacturer encroachment in which product quality is endogenous and customers have heterogeneous preferences for quality. We find that encroachment always makes the retailer worse-off. In addition, we show that a manufacturer offering differentiated products through two channels prefers to sell its high-quality product directly. Contrary to conventional wisdom, quality differentiation does not always benefit either manufacturer or retailer. 4 - Measuring the Bullwhip Effect with Material Flow Data: Biases and Remedies Wei Luo, IESE Business School, Av. Pearson 21, Barcelona, Spain, wluo@iese.edu, Li Chen, Kevin Shang This paper focuses on understanding the bullwhip measurement and providing methods to infer demand and order variance from available material flow data. We derive conditions under which estimation bias occurs and characterize the driving factors. We also propose a debiasing method that helps the practitioners and empirical researchers to further improve their estimation and assessment of the magnitude of the bullwhip effect.

New York, NY, 10002, United States of America, yxu@stern.nyu.edu, Anindya Ghose, Mor Armony

New platforms for online patient reviews and appointment scheduling provide an unprecedented opportunity to examine the relationship between patient reported satisfaction and demand for outpatient care. We study data from a leading online appointment booking site and use structural estimation and data mining to determine the influence of patient reviews on physician demand. We pay special attention to operational factors in patient care such as service time, waiting time and ease of appointment. 3 - Process Information in Healthcare Systems: Applications to Delay Estimations and Management Galit Yom-tov, Technion, IE&M Faculty, Technion, Haifa, Israel, gality@tx.technion.ac.il, Chen Shapira, Sarah Kadish, Shoshi Levavi, Avi Mandelbaum, Nitzan Carmeli, Arik Senderovich, Craig Bunnell Extracting process information data for healthcare services is a challenge due to the combination of multiple non-integrated IT systems. In this talk we consider an (open traditional) emergency department and an (appointment-driven) outpatient hospital. We discuss operational benefits of information processing efforts and the theoretical challenges they present. We then focus on the evolution of delays through these service networks, and the use of process (and RTLS) data to estimate delays. 4 - Optimal Emergency Department Wait Time Prediction Sara Kwasnick, Stanford Graduate School of Business, 655 Knight Way, Stanford, United States of America, kwasnick@stanford.edu, Erica Plambeck, Mohsen Bayati We implement a real-time wait time prediction system at a partner hospital, and explore how the accuracy and format of wait time estimates affects patient behavior. In particular, we find that accurate provision of wait time information appears to improve satisfaction and decrease the rate at which patients leave without being seen. We propose a new wait time prediction objective based on these results. SA48 48-Room 105A, CC Sustainable Operations Management and the Environment Sponsor: Manufacturing & Service Oper Mgmt/Sustainable Operations Sponsored Session Chair: Michael Lim, University of Illinois, 1206 S. 6th street, Champaign, Il, 61822, United States of America, mlim@illinois.edu Co-Chair: Nicholas Petruzzi, The Pennsylvania State University, 210 Business Building, University Park, PA, 16802, United States of America, ncp12@psu.edu 1 - On the Formation of Farmer Producer Organizations in Developing Economies Qiao-Chu He, PhD Candidate, University of California, Berkeley, 1117 Etcheverry Hall, Berkeley, United States of America, heqc0425@berkeley.edu, Ying-ju Chen, Zuo-jun Max Shen We study the incentives for small and marginal farmers in developing economies to form farmer producer organizations (FPOs). We shall focus on the FPOs’ institutionalized efforts in linking small farmers by integrating market information. By a stylized Cournot competition model endowed with endogenous information acquisition and sharing decisions, we offer insights on the governments or NGOs’ dual roles in providing market information as well as mobilizing farmers to build FPOs.

2 - The State of Scope 3 Carbon Emissions Reporting Christian Blanco, christian.noel.blanco@gmail.com, Charles Corbett, Felipe Caro

We compare upstream supply chain carbon emissions (scope 3) reported to CDP to estimates from Economic Input-output Life Cycle Assessment (EIOLCA) models. We find that several opportunities remain in measuring and reporting upstream carbon emissions reported to CDP relative to EIOLCA estimates.

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