SBUS Information Systems and Operations Management Department

Zhechao Yang

Katelynn C Hipolito — Thu, 24 Jul 2025 17:37:29 +0000

Zhechao Yang Katelynn C Hipolito Thu, 07/24/2025 - 13:37

Assistant Professor, Information Systems and Operations Management

Contact Information

(She/Her/Hers) 
Email: zyang31@gmu.edu
Office Location: Enterprise Hall, 107, MS 5F4

Biography

Zhechao Yang is an assistant professor in the information systems and operations management area in the Costello College of Business at �鶹��Ƶ. She received her PhD in information systems and operations management from the Warrington College of Business at the University of Florida. Prior to her doctoral studies, she earned an MEng in industrial engineering and a BS in business administration from Xi’an Jiaotong University. Her research interests include the economics of AI, social media, e-commerce retailing, and design science. 

Qiaodan (Jordan) He

Katelynn C Hipolito — Thu, 24 Jul 2025 17:28:02 +0000

Qiaodan (Jordan) He Katelynn C Hipolito Thu, 07/24/2025 - 13:28

Assistant Professor, Information Systems and Operations Management

Contact Information

(She/Her/Hers)
Email: qhe4@gmu.edu
Office Location: Enterprise Hall, 105, MS 5F4

Biography

Qiaodan He is an assistant professor in the information systems and operations management (ISOM) area at the Costello College of Business at �鶹��Ƶ. She earned her PhD in business and economics from the College of Business at Lehigh University. Qiaodan’s research focuses on the impact of artificial intelligence (AI), user behavior, and online platform strategies in mobile commerce and social media contexts. 

Si Xie

Nilesh Patel — Fri, 13 Sep 2024 19:07:09 +0000

Si Xie Nilesh Patel Fri, 09/13/2024 - 15:07

Assistant Professor, Information Systems and Operations Management

Contact Information

Email: sxie3@gmu.edu
Phone: (703) 993-1573
Office: Enterprise Hall, 104, MS 5F4

Biography

Si Xie's academic journey is a testament to her unwavering dedication and intellectual curiosity. Beginning with a bachelor's degree from Mount Carmel College, in Bangalore, India, she embarked on a quest for knowledge that led her to pursue dual master's degrees from Jawaharlal Nehru University and Hong Kong Polytechnic University, as well as a PhD in management (information systems) from The University of Texas at Dallas (UTD). These formative experiences not only equipped her with a diverse array of academic skills but also instilled in her a global perspective that continues to shape her research endeavors. Si's scholarly pursuits have been marked by notable achievements, including a Junior Research Fellowship from the Indian Government in 2016 and the prestigious Dean's Scholarship at UTD's Naveen Jindal School of Management from 2023 to 2024.

Education

Ph.D. – The University of Texas at Dallas
Masters – Jawaharlal Nehru University and Hong Kong Polytechnic University
B.A. – Mount Carmel College, Bangalore, India

Media Clippings

March 7, 2025 - La Republica
The rise of livestream shopping

Mariia Petryk

Marianne Klinker — Thu, 16 Feb 2023 14:48:54 +0000

Mariia Petryk Marianne Klinker Thu, 02/16/2023 - 09:48

Assistant Professor, Information Systems and Operations Management
Additional Roles: Corporate Partner Faculty Fellow

Contact Information

Email: mpetryk@gmu.edu
Office Location: Enterprise Hall, 150

Personal Websites

MariiaPetryk.com

Biography

Mariia Petryk is a Corporate Partner Faculty Fellow and assistant professor within the Information Systems and Operations Management Area in the Costello College of Business at �鶹��Ƶ. Before joining �鶹��Ƶ, Dr. Petryk received her Ph.D. in information systems and operations management from the Warrington College of Business at the University of Florida. Her research interests include emerging technology management, digital and mobile platforms, blockchain, and social networks. Dr. Petryk’s research appeared in reputable academic journals, including Information Systems Research, Journal of Management Information Systems, The Journal of Financial and Quantitative Analysis, and at premier IS conferences, including CIST, WITS, HICSS, POMS, and INFORMS. In 2025, Dr. Petryk was also named a GDIT Corporate Partner Faculty Fellow.

Research Interests

Blockchain
Digital and mobile platforms
Social networks
Emerging technology
Economics of AI

Education

Ph.D. Business Administration - Information Systems and Operations Management, Warrington College of Business, University of Florida
Ph.D. Statistics (Minor), Statistics Department, University of Florida
M.S. Economic Cybernetics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
B.A. Law, Kyiv National Economic University, Kyiv, Ukraine
B.S. Economic Cybernetics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

Research and Awards

Publications

Mahendrarajah Nimalendran, Praveen Pathak, Mariia Petryk, and Liangfei Qiu (author names are in alphabetical order) (2024), “Informational Efficiency of Cryptocurrency Markets,” Journal of Financial and Quantitative Analysis, pp. 1-30 (FT 50).
Mariia Petryk, Liangfei Qiu, and Praveen Pathak (2023), “The Impact of Open-Source Community on Cryptocurrency Market Price: An Empirical Investigation,” Journal of Management Information Systems, 40(4), pp. 1237-1270 (FT 50).
Mariia Petryk, Michael Rivera, Siddharth Bhattacharya, Liangfei Qiu, and Subodha Kumar (2022), “How Network Embeddedness Affects Real-Time Performance Feedback: An Empirical Investigation,” Information Systems Research, 33(4), pp. 1467-1489 (UTD 24, FT 50).

Awards

2025-2028 Corporate Partner Fellowship, �鶹��Ƶ
2024-2025 Costello College of Business Outstanding Research Publications Award
2024 Teaching Excellence Award Nominee, �鶹��Ƶ
2023-2024 Costello College of Business Outstanding Research Publications Award
2022 Certificate of Outstanding Achievement, University of Florida
2017-2020 Grinter Fellowship, University of Florida
2009-2015 Scholarship and full tuition waiver from the Ministry of Education of Ukraine, Ministry of Education of Ukraine

Media Appearance

George �鶹��Ƶ professor furthers impact of telemedicine in Ukraine. Costello College of Business, January 14, 2025. https://business.gmu.edu/news/2025-01/george-mason-professor-furthers-impact-telemedicine-ukraine
Is Crypto Cleaning Up Its Act? Harvard Business Review, March 25, 2024. https://hbr.org/2024/03/is-crypto-cleaning-up-its-act
Cryptocurrency's surprising transparency advantage. TechXplore, January 5, 2024. https://techxplore.com/news/2024-01-cryptocurrency-transparency-advantage.html#google_vignette
Do you criticize or celebrate your colleagues? It may depend on your social position. Costello College of Business, September 27, 2023. /news/2023-09/do-you-criticize-or-celebrate-your-colleagues-it-may-depend-your-social-position

Ajay Vinzé, PhD

Kiel Stone — Tue, 21 Jun 2022 15:08:41 +0000

Ajay Vinzé, PhD Kiel Stone Tue, 06/21/2022 - 11:08

Interim Provost and Executive Vice President, �鶹��Ƶ

Contact Information

Email: gmuprov@gmu.edu
Phone: (703) 993-5399
Campus: Fairfax
Office: 5200 Merten Hall
Mail Stop: 3A2

Biography

Ajay Vinzé is the interim Provost and executive vice president of �鶹��Ƶ. He previously served as dean of the Donald G. Costello College of Business, one of the largest business schools in Virginia. With over 35 years of experience in higher education, Vinzé is committed to advancing the university’s mission—preparing successful graduates, fostering exceptional scholarship, and making a positive impact regionally, nationally, and globally.

Since joining the Costello College of Business at �鶹��Ƶ in July 2022, Vinzéhas focused on positioning the Costello College as a leader among business schools. His priorities included expanding multi-disciplinary academic programs, promoting inclusive entrepreneurship, offering modular education, and strengthening corporate and community partnerships.

As part of these initiatives, Vinzé launched several innovative programs in business education. These included the reimagined Master’s in Management program, which offers modular education through micro-credentialing and stackable certificates. Also included among these programs is the SOAR Initiative, which provides a comprehensive support model for startups, empowering individuals in our region who lack access to entrepreneurship training. Additionally, the newly established Corporate and Community Partners Program fosters strategic partnerships between these partner organizations and Costello, supporting student recruitment, internships, scholarships, and faculty awards. In 2023, Vinzé also oversaw the renaming of the School of Business to the Donald G. Costello College of Business.

Prior to joining Costello, Vinzé served as Dean of the Robert J. Trulaske, Sr. College of Business at the University of Missouri. At Trulaske, he is credited with significantly enhancing the research profile of the college, offering innovative business education programs, and raising over $30M in philanthropic giving. Vinzé is a Fulbright Senior Specialist and a global citizen, having lived, worked or traveled through more than 70 countries over the past three decades. He completed his doctoral degree at the University of Arizona after receiving a master’s degree from the University of Connecticut and a bachelor’s degree from Shri Ram College of Commerce (SRCC) at the University of Delhi.

Education

PhD, Business Administration, Management Information Systems, University of Arizona
MBA, Finance, University of Connecticut
BComm (Honors), Accounting, SRCC, University of Delhi

Michael Berecz

Marianne Klinker — Thu, 24 Feb 2022 19:31:38 +0000

Michael Berecz Marianne Klinker Thu, 02/24/2022 - 14:31

Adjunct Faculty, Information Systems and Operations Management

Contact Information

Email: mberecz@gmu.edu
Office Hours: By Appointment

Biography

Michael Berecz is an adjunct faculty member within the Information Systems and Operations Management Area in the Costello College of Business at �鶹��Ƶ.

Jason Hamilton

Marianne Klinker — Thu, 24 Feb 2022 19:25:29 +0000

Jason Hamilton Marianne Klinker Thu, 02/24/2022 - 14:25

Adjunct Faculty, Information Systems and Operations Management

Contact Information

Email: jhamil4@gmu.edu
Office Hours: By Appointment

Biography

Jason Hamilton is an adjunct faculty member within the Information Systems and Operations Management Area in the Costello College of Business at �鶹��Ƶ.

Ganesh Krishnamoorthy

Marianne Klinker — Thu, 24 Feb 2022 19:23:03 +0000

Ganesh Krishnamoorthy Marianne Klinker Thu, 02/24/2022 - 14:23

Adjunct Faculty, Information Systems and Operations Management

Contact Information

Email: gkrishn@gmu.edu
Office Hours: By Appointment

Biography

Ganesh Krishnamoorthy is an adjunct faculty member within the Information Systems and Operations Management Area in the Costello College of Business at �鶹��Ƶ.

Jamey Long

Marianne Klinker — Thu, 24 Feb 2022 19:21:24 +0000

Jamey Long Marianne Klinker Thu, 02/24/2022 - 14:21

Adjunct Faculty, Information Systems and Operations Management

Contact Information

Email: jlongc@gmu.edu
Office Hours: By Appointment

Biography

Jamey Long is an adjunct faculty member within the Information Systems and Operations Management Area in the Costello College of Business at �鶹��Ƶ.

Michael Moak

Marianne Klinker — Thu, 24 Feb 2022 19:20:03 +0000

Michael Moak Marianne Klinker Thu, 02/24/2022 - 14:20

Adjunct Faculty, Information Systems and Operations Management

Contact Information

Email: mmoak@gmu.edu
Office Hours: By Appointment

Biography

Michael Moak is an adjunct faculty member within the Information Systems and Operations Management Area in the Costello College of Business at �鶹��Ƶ.