Informs Annual Meeting Phoenix 2018

INFORMS Phoenix – 2018

TE23

3 - Choosing Fairly with Unknown Metric Preferences Anilesh Krishnaswamy, Stanford University, Stanford , CA, 94305, United States, Ashish Goel, Kamesh Munagala We consider the problem of choosing a single alternative based on the ordinal preferences of agents on a set of alternatives, under the assumption that the preferences of agents are derived from an underlying unknown metric space. This model is motivated in part by specific settings such as facility location (e.g. choosing locations for schools/hospitals) and in general by preference aggregation in large feature spaces. We identify algorithms that provably choose alternatives that are close to optimal simultaneously for a wide class of convex objective functions which includes various fairness measures such as social welfare (SUM), Nash welfare (PRODUCT) and Rawlsian welfare (MAX). Recent Advance in Healthcare Management Sponsored: Manufacturing & Service Oper Mgmt/Healthcare Operations Sponsored Session Chair: Nan Liu, Boston College, Chestnut Hill, MA, 02467, United States Co-Chair: Pengyi Shi, Purdue University, Purdue University, West Lafayette, IN, 47907, United States 1 - Risk-sharing Agreements for New Medical Treatments Ozge Yapar, University of Pennsylvania, Wharton School of Business, 3730 Walnut Street, Philadelphia, PA, 19103, United States, Stephen E. Chick, Noah Gans Any estimate of a new medical treatment’s value that relies on clinical-trial data can have significant residual uncertainty. So-called post-marketing data, captured after the treatment has entered the market and is used by the general population, can augment clinical-trial data to better validate its safety, efficacy, and economic value. To better manage the risks associated with this post-trial residual uncertainty, new price updating mechanisms are under consideration around the world. We analyze these new risk-sharing arrangements. 2 - Supply Disruptions in Sterile Injectable Drug Supply Chain Parshuram Sambhajirao Hotkar, UT Austin, Austin, TX, 78751, United States, Diwakar Gupta Injectable drug shortages are a serious problem in the US. Reasons for such shortages vary including contamination and facility updates. We consider a setting in which two firms sell a perfectly a substitutable drug in the same market. Firms make capacity decisions first, followed by production decisions. Firm 1 is subject to production shut downs, but Firm 2 is not. Both firms choose capacities before observing supply disruption, based on the likelihood and intensity of the supply shock. Our analysis focuses on how a central planner should distribute incentives to improve disruptions - either to the safer firm, or to the riskier firm, or to both, and if both, then in what combination. 3 - A New Value Proposition for Reducing Readmissions: Dynamic Staffing for Post-discharge Follow-ups Alex Mills, Indiana University Bloomington, 1309 E. Tenth St, Bloomington, IN, 47405, United States, Jonathan Helm, Shanshan Hu, Xiaoyang Yu, Jivan Romain Deglise-Hawkinson, Julian Pan Under a simple staffing policy, the cost of providing follow-ups for discharged patients may outweigh the benefit of reduced hospital readmissions. Motivated by the current state of practice, we formulate a capacity planning problem with a rolling horizon that balances the time-nonhomogeneous benefit of readmission reduction against the cost of providing capacity and the potential cost of wasted capacity, since hospital discharges are stochastic. Unlike when using a simple Newsvendor heuristic, following up with a larger population of patients is cost- effective when capacity is planned using our method. 4 - Managing Outpatient Care Services Under Strategic Walk-in Patients Nan Liu, Boston College, 140 Commonwealth Avenue, Fulton Hall, Room 340, Chestnut Hill, MA, 02467, United States, Shan Wang, Willem van Jaarsveld, Guanlian Xiao Outpatient care providers often accept both scheduled patients and walk-in patients without appointments. Patients may choose to book an appointment or to walk in directly, depending on their health condition and the utility of each option. In this talk, we discuss how an outpatient care provider should manage her capacity taking into account such strategic behavior of patients. n TE23 North Bldg 131A

n TE24 North Bldg 131B E-Business/Commerce & Accounting Contributed Session Chair: Shaoqin Ye, Xiamen University, 422 Siming South Road, Xiamen, 361005, China 1 - How Much to Share. A Study to Understand the Interplay Between Firms and Their Affiliates Siddharth Bhattacharya, PhD Student, Fox School of Firms increasingly utilize third party affiliates to advertise on their behalf. The focus of our research is to find what optimal pricing and advertising strategies between firms and affiliates maximize profits and how does product quality, customer heterogeneity, affiliate type and type of ad contract (with Google) affect those strategies. 2 - Optimal Pricing Decisions for an Omni-channel Retailer Nevin Mutlu, Eindhoven University of Technology, P.O. Box 513, Eindhoven, 5600 MB, Netherlands In this research, we develop an analytical model to study a dual-channel retailer’s pricing policy across store and online channels, considering that different channels exhibit different cost structures, yet an inconsistent pricing scheme across channels may lead to lower sales due to consumer confusion. 3 - Optimizing NFL Player’s Contracts Wei Chen, Assistant Professor, York College of Pennsylvania, 211 Willman Business Center, 441 Country Club Road, York, PA, 17403, United States, Benjamin V. Neve National Football League (NFL) implements restrict salary cap for all professional teams, therefore successfully investing in players’ contracts is a key factor to keep a team maintaining competitive. By referring past 30 years NFL players’ statistics, this research develops a weighted optimization model to offer recommendations on any free agent player’s contract based the player previous performance as well as other similar players’ historical performance. A real NFL case has been used to test the model, it shows the developed model offers a better solution than current management system. 4 - Influence of Controlling Shareholders’ Pledge on the Quality of Earnings: A Research Based on A-share Listed Companies in China Shaoqin Ye, Professor, Xiamen University, 422 Siming South Road, Xiamen, 361005, China, Danxia Guo This study explores the impact of equity pledges by controlling shareholders of listed companies on the quality of earnings using Chinese A-share listed companies during 2007-2016 as a sample. The empirical findings indicate that, other things being equal, the companies whose controlling shareholders have pledged their stocks have a higher quality of earnings than those whose controlling shareholders have no equity pledge. In addition, such an effect is negatively moderated by the degree of marketization. n TE25 North Bldg 131C Joint Session Service Science/Practice Curated: Analytics in Higher Education and Science Workforce Sponsored: Service Science Sponsored Session Chair: Maryam Alsadat Andalib, Virginia Institute of Technology, Blacksburg, VA, 24060, United States 1 - Happy With a Baby and a Declined Tenure: Effects of Tenure- clock Extension Policies on Career Outcomes of New Parent Faculty Members Maryam Alsadat Andalib, Data Scientist, Ford Motor Company, Dearborn, MI, United States, Navid Ghaffarzadegan In this paper, we look at the support mechanisms for new-parent, tenure-track faculty in universities with a specific focus on tenure-clock extension policies. We construct a unique data set to answer questions around the effectiveness of removing the stigma connected with automatic tenure-clock policies. Our results show that such policies are successful in removing the stigma and that, overall, faculty members that have newborns and are employed by universities that adopt auto-TCE policies stay one year longer in their positions than other faculty members. In addition, we investigate the effect of auto-TCE policies on other career outcomes (e.g., getting tenure and job satisfaction). Business,Temple University, Alter Hall, 1801 Liacouras Walk, Philadelphia,, PA, 19122, United States, Subodha Kumar, Sunil Wattal

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