Marios Papachristou Personal Homepage
I am an Assitant Professor of Information Systems in the W. P. Carey School of Business at Arizona State University. I work on the economics of networks, exploring their roles within large-scale social and information systems, and understanding their wider societal implications. I am also affiliated with W. P. Carey’s Center for AI and Data Analytics Center.
I hold a Ph.D. in Computer Science from Cornell University; where I had the fortune to be advised by Jon Kleinberg. My thesis focused on studying the resilience of sociotechnical systems.
I am interested in
- LLMs for Social Science. Exploring the capabilities of LLMs in social science, simulating human behavior, and simulating complex socio-technical systems. Recent examples include network formation (PNAS Nexus 2025) with LLM agents, and collective decision-making (ACM CSCW 2025, ACM Featured Article).
- Information Diffusion and Contagion. Exploring how information and contagion diffuses in networks and how to remediate it. Examples include financial contagion (ACM WWW 2022, ACM WWW 2023, SSRN 2024, Federal Reserve Bank of Minneapolis Featured Article, TOC4Fairness), and supply chains (SSRN 2024).
- Privacy Preserving AI. Exploring how agents learn in a distributed way subject to privacy considerations. Examples include learning with continuous state spaces (IISE Transactions 2025, ISE Magazine Featured Article, Pitt News Article), and discrete state spaces (arXiV 2024).
- Network Models. Exploring how (hyper)-graphs form. Examples include learning the structure of core-periphery graphs (Scientific Reports 2021) and hypergraphs (ACM KDD 2022), and statistical sampling from constrained spaces (ACM TOMS 2023, JOSS 2025).
In the past, I have closely collaborated with the Office of Applied Research at Microsoft Research, and the User Modeling Research Team at Twitter Cortex (now X), and have also contributed to the open-source statistical sampling software volesti.
My research has been supported by an Onassis Scholarship, a LinkedIn Ph.D. Fellowship, a grant from the A.G. Leventis Foundation, a grant from the Gerondelis Foundation, and a Cornell University Fellowship.