The Robert H. Smith School of Business, University of Maryland
3330 Van Munching Hall, College Park, MD 20742-1815
Telephone: (301) 633 4848 Fax: (301) 314 9611
Email: hcelebi@rhsmith.umd.edu
HEIDI CELEBI
EDUCATION
University of Maryland, College Park, MD, Ph.D. Candidate
Major area: Supply Chain Management, Minor area: Management Science
2016
Izmir University of Economics, Izmir, Turkey
MA in Supply Chain Management (non-thesis), Cambridge University CELTA
2009
University of Maryland, College Park, MD, BS Physical Sciences
Areas of Concentration: Materials Engineering, Physics, and Math
2000
International Baccalaureate, Rockville, MD
1994
DISSERTATION TITLE AND ABSTRACT
Stockout-based Customer Switching and Its Impact on the Supply Chain
How do in-store operational decisions of retailers affect supply chain members? How do retailer actions
contribute to stockout occurrence? Retail stockouts mean lost sales and increased difficulty in managing
inventory due to customers switching from an out of stock item to a substitute. This dissertation adds to the
extensive literature on substitution and stockout occurrence in a number of ways. First, it presents a heuristic
for a retailer who stocks items according to a target service level. The heuristic shows reasonably well
performance in a simulation experiment over various levels of customer willingness to substitute. The results
also suggest the need to differentiate service measures over dimensions beyond the standard item fill rate.
Secondly, a unique dataset with actual on-shelf stockout occurrences is used to empirically test the
relationship between stockouts and the retailer’s allotted shelf space for items it receives in set case pack
sizes. This data sidesteps the research issue of identifying stockouts by manual audits or estimation methods
using sales or perpetual inventory data. Lastly, the dissertation uses both the simulation values and the
archival store data for nine different unit fill rate measures: primary, secondary, and total fill rates for an item,
for a customer, and for a brand. Bringing together these performance measures enables insight into how a
retailer’s internal tactical planning also affects customers and suppliers in the retail supply chain.
RESEARCH
INTERESTS :
E MPIRICAL OPERATIONS MANAGEMENT – RETAIL SUPPLY CHAIN MANAGEMENT
CURRENT WORK:
(1) Distinguishing different dimensions of customer service – a simulation experiment
(2) Retailer and supplier coordination for fewer on-shelf stockouts – archival data
JOURNAL
PUBLICATIONS :
DE Cantor, H. Celebi, TM Corsi, CM Grimm (2013) “Do Owner-Operators Pose a Safety Risk
on the Nation’s Highways?”, Transportation Research Part E: Logistics and Transportation
Review, Vol. 59, p. 34-47.
CONFERENCE
PRESENTATIONS :
Celebi, HP, Cantor, DE, Corsi, TM, Grimm, CM, “Do Owner-Operators Pose a Safety Risk on
th
the Nation’s Highways?” 54 Annual Transportation Research Forum, Annapolis, MD, March
2013.
Celebi, HP, Evers, PT, “Inventory Management Decisions in a Customer Switching
th
Environment” Production and Operations Management Society 25 Annual Conference,
LinkedIn: https://www.linkedin.com/pub/heidi-celebi/1a/969/20a
Researchgate: https://www.researchgate.net/profile/Heidi_Celebi
HEIDI CELEBI
PAGE 2
Atlanta, GA, May 2014, and 2014 Annual Meeting of the Decision Sciences Institute, Tampa,
FL, November 2014.
Celebi, HP, Evers, PT, “Stockout based substitution and its impact on the supply chain,” 2015
Annual Meeting of the Decision Sciences Institute, Seattle, WA, November 2015.
TEACHING
INSTRUCTOR:
Undergraduate (400-level course)
Technological Applications in Supply Chain, Fall (2013), Spring (2014, 2015)
TEACHING
ASSISTANT :
MBA (600 & 700-level courses)
The Political and Social Environment of the Multinational Firm, Fall (2013)
The Global Economic Environment, Summer (2013, 2014), Fall (2015)
Emerging Economies, Government Policies, and International Trade, Fall (2012)
Managerial Economics and Public Policy, Fall (2015)
Introduction to Global Business Experience, Fall (2014)
Undergraduate (100 & 400 level courses)
Introduction to Transportation, Fall (2011)
Technological Applications in Supply Chain Management, Fall (2014, 2015)
Business Ethics and Society, Fall (2014)
SERVICE
REVIEWER:
ad hoc, Journal of Business Logistics (2014-present)
Full paper submission judge, DSI (2015)
OTHER:
Senate Faculty Affairs (2014-2015) & GSG (2013-2014) Committees
Business PhD program representative at Graduate Student Government (GSG) (2013-2015)
Mentor for Iowa State Honors student simulation project, Spring 2014
INDUSTRY POSITIONS
Medex International, Maryland (sales) & Izmir (manufacturing), Turkey
Employer, Co-owner
2006-2011
and 1991-2001
CoStar Group, Bethesda, Maryland
Research Analyst, Atlanta and Dallas/Fort Worth commercial real estate markets
2004-2006
and 2001-2002
United Nations – Ankara, Turkey
(1) UNICEF – Procurement
(2) FAO – Senior Finance Admin. Assistant
REFERENCES
Philip T. Evers (Chair)
Associate Professor of SCM
RH Smith School of Business
3435 Van Munching Hall
University of Maryland
College Park, MD 20742-1815
301-405-7164 TEL
pevers@rhsmith.umd.edu
Thomas M. Corsi
Michelle E. Smith Professor of
Logistics & Co-Director, Supply
Chain Management Center
RH Smith School of Business
3359 Van Munching Hall
University of Maryland
College Park, MD 20742-1815
301-405-2197 TEL
tcorsi@rhsmith.umd.edu
2002-2004
Curt Grimm
Professor and Charles A. Taff
Chair of Economics & Strategy
RH Smith School of Business
3437 Van Munching Hall
University of Maryland
College Park, MD 20742-1815
301-405-2235 TEL
cgrimm@rhsmith.umd.edu
(Updated August 2015)