2015 Informs Annual Meeting

SB48

INFORMS Philadelphia – 2015

SB47 47-Room 104B, CC The Sharing Economy Sponsor: Manufacturing & Service Oper Mgmt/Sustainable Operations Sponsored Session Chair: Saif Benjaafar, Professor, University of Minnesota, 111 Church Street SE, Minneapolis, MN, 55455, United States of America, saif@umn.edu 1 - Collaborative Consumption in Peer-to-peer Car Sharing Saif Benjaafar, Professor, University of Minnesota, 111 Church Street SE, Minneapolis, MN, 55455, United States of America, saif@umn.edu, Guangwen Kong, Xiang Li We consider a two-sided market consisting of car owners and renters, mediated by an online platform. Individuals decide on whether to be owners or renters and the platform decides on rental prices, commission rates, and membership fees. We compare car ownership and cart usage in economies with and without sharing and the corresponding social welfare, including environmental impact. 2 - The Last Mile of the Sharing Economy Arun Sundararajan, Professor And Rosen Faculty Fellow, NYU, 44 West 4th Street, New York, NY, 10012, United States of America, asundara@stern.nyu.edu Disruption associated with what is called the “sharing economy” is altering local logistics dramatically. In my talk, I will discuss recent research on the new economics of the last mile for physical products, analyzing whether they favor the emergence of Amazon-like digital channels that reduce physical store to intelligent warehouses, or an expansion of the footprint of local retail powered by third-party peer-to-peer delivery services. 3 - Collaborative Consumption: Strategic and Economic Implications of Product Sharing Baojun Jiang, Olin Business School, Washington University, St. Louis, MO, 63130, United States of America, baojunjiang@wustl.edu, Lin Tian This paper examines the strategic and economic impacts of collaborative consumption–product sharing among consumers. Our analysis shows that friction in the product-sharing market may have a non-monotonic effect on the firm’s profits, consumer surplus, and social welfare. When the firm strategically chooses its retail price, product sharing among consumers can be either win-win or lose- lose for the firm and the consumers, depending on whether the firm’s marginal cost is high or low. 4 - The Sharing Newsboys Ming Hu, Associate Professor, University of Toronto, 105 St. George Street, Toronto, Canada, Ming.Hu@Rotman.Utoronto.Ca We study resource sharing behavior among a network of connected newsboys. Our focus is to investigate the impact of network structure on the sharing behaviors. SB48 48-Room 105A, CC Quality and Compliance Enforcement in the Supply Chain Sponsor: Manufacturing & Service Oper Mgmt/Sustainable Operations Sponsored Session Chair: Saed Alizamir, Assistant Professor, Yale University, 165 Whitney Ave, New Haven, CT, 06511, United States of America, saed.alizamir@yale.edu 1 - Quality Certification under Poor Legal Enforcement Mariya Bondareva, PhD Candidate, University of Rochester, Simon School PhD Program, UoR, 500 Joseph C.Wilson B.,4-345 Carol Simon, Rochester, NY, 14627, United States of America, Mariya.Bondareva@Simon.Rochester.edu, Edieal Pinker Outsourcing to developing countries is complicated by imperfect quality monitoring and inefficient legal enforcement. To ensure quality, the brands can use self-enforcing contracts. We study dynamic relational contracts using certification, inspections and penalties and determine when the certification mechanism is justified. The optimal equilibrium is characterized by non- decreasing expected profits for suppliers, non-decreasing penalties for quality failures and non-increasing defect rates.

4 - Why Markdown as Pricing Modality? Role of Entry Threat Elodie Adida, University of California at Riverside, Riverside, CA, elodie.goodman@ucr.edu, Ozalp Ozer Retailers commonly use markdowns jointly with inventory rationing with the goal of creating scarcity and segmenting the market when consumers are strategic. We show that the presence of competition can help explain why markdown is a more sustainable pricing strategy than everyday-low-price. We also give a new rationale for inventory rationing as a need to maintain a market share for the competitor. We investigate how consumers’ behavioral motives affect this rationing effect.

SB46 46-Room 104A, CC

Drivers of Employee Productivity in Service Settings Sponsor: Manufacturing & Service Oper Mgmt/Service Operations Sponsored Session Chair: Anita Tucker, Associate Professor, Brandeis University, 415 South Street, Waltham, MA, 02453, United States of America, atucker@brandeis.edu 1 - Collaboration and Professional Labor Productivity: An Empirical Study of Physician Workflows Lu Wang, Kellogg School of Management, Northwestern University, 2001 Sheridan Road, 5th Floor, Evanston, IL, 60201, United States of America, vivianluluw@gmail.com, Jan Van Mieghem, Kevin O’leary, Itai Gurvich Theory predicts that simultaneous collaboration among professionals can introduce a capacity loss due to synchronization requirements. We empirically test the theory with the data collected from closely observing physicians at Northwestern Memorial Hospital in Chicago. We show that there exists a 21% potential productivity improvement if the task preemptions inherent in collaboration can be fully eliminated and estimate that more than 50% can be achieved by eliminating the task preemption cost. 2 - When You Work with a Super Man, Will You Learn to Fly? An Empirical Study of the Impact of Coworkers Fangyun (Tom) Tan, Assistant Professor, Cox Business School, SMU, 6212 Bishop Blvd, Dallas, TX, 75275, United States of America, ttan@cox.smu.edu, Serguei Netessine We use a large detailed operational data set from a casual restaurant chain to understand how peer effects affect servers’ performance. In particular, we analyze the effect of coworkers’ sales ability on how servers expend efforts in service speed (measured as meal duration) and quality (measured as sales), separately. Our study highlights a need for more nuanced approaches to leveraging peer effects in optimal scheduling decisions. 3 - How will the Increased Workload of Primary Care Providers Affect Patient Health? Hessam Bavafa, Assistant Professor, Wisconsin School of Business, Madison, WI, United States of America, hbavafa@bus.wisc.edu With the implementation of the Affordable Care Act in the United States, the healthcare system will experience an influx of newly insured patients with complex medical needs, thus increasing the workload of the primary care providers (PCPs). It is not clear how this increased workload will affect patient care. In this paper, we seek to understand the impact of primary care provider (PCP) workload on patients’ access to care using a large dataset from the Veterans Health Administration. 4 - Queue Discretion, Batching, and Performance in Teleradiology Maria Ibanez, Doctoral Candidate, Harvard Business School, Soldiers Field, Boston, MA, 02163, United States of America, mibanez@hbs.edu, Jonathan Clark, Robert Huckman, Bradley Staats We examine how knowledge workers exert discretion on the order in which to execute tasks and the subsequent performance implications of those choices. Using two and a half years of data on more than 2.7 million cases read by outsourced radiologists working at one of the largest teleradiology firms in the US, we explore potential heuristics in ordering decisions, and how this endogenous ordering affects performance.

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