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Tianyi Peng

Columbia University - Columbia Business School

3022 Broadway

New York, NY 10027

United States

  • Columbia University - Columbia Business School

SCHOLARLY PAPERS

5

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1,586

TOTAL CITATIONS

1

Scholarly Papers (5)

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1.

Digital Twins are Funhouse Mirrors: Five Systematic Distortions

Columbia Business School Research Paper No. 5518418
Number of pages: 182 Posted: 23 Sep 2025 Last Revised: 17 Apr 2026
Tianyi Peng, George Gui, Daniel Merlau, Grace Jiarui Fan, Malek Ben Sliman, Melanie Brucks, Eric Johnson, Vicki Morwitz, Abdullah Althenayyan, Silvia Bellezza, Dante Donati, Hortense Fong, Elizabeth Friedman, Ariana Guevara, Mohamed Hussein, Kinshuk Jerath, Bruce Kogut, Kristen Lane, Hannah Li, Patryk Perkowski, Oded Netzer and Olivier Toubia
Columbia University - Columbia Business School, Columbia University - Columbia Business School, Marketing, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Columbia University - Columbia Business School, affiliation not provided to SSRN, affiliation not provided to SSRN, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Marketing, Columbia University - Barnard College, Columbia University, Columbia University - Columbia Business School, Marketing, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Yeshiva University, Columbia University - Columbia Business School, Marketing and Columbia University - Columbia Business School, Marketing
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2.

Twin-2K-500: A dataset for building digital twins of over 2,000 people based on their answers to over 500 questions

Columbia Business School Research Paper No. 5265253
Number of pages: 42 Posted: 23 May 2025
Olivier Toubia, George Gui, Tianyi Peng, Daniel Merlau, Ang Li and Haozhe Chen
Columbia University - Columbia Business School, Marketing, Columbia University - Columbia Business School, Marketing, Columbia University - Columbia Business School, Columbia University - Columbia Business School, Columbia University - Columbia Business School and Columbia University - Columbia Business School
Downloads 660 (103,516)

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3.

Corporate Digital Twins from Email: Using Language Models to Mirror Organizational Life

Columbia Business School Research Paper (forthcoming)
Number of pages: 23 Posted: 23 Apr 2026 Last Revised: 26 Apr 2026
Grace Jiarui Fan, Tianyi Peng, Xiaotong Tang, Hyeonik Park and Shangxuan Vivian Zhang
Columbia University - Columbia Business School, Columbia University - Columbia Business School, Columbia University, Columbia University and Columbia University
Downloads 53 (1,263,436)

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digital twins, large language models, organizational modeling, email analysis, agent benchmarks

4.

SYN-DIGITS: A Synthetic Control Framework for Calibrated Digital Twin Simulation

Columbia Business School Research Paper (forthcoming)
Number of pages: 39 Posted: 14 Apr 2026
Grace Jiarui Fan, Chengpiao Huang, Tianyi Peng, Kaizheng Wang and Yuhang Wu
Columbia University - Columbia Business School, Columbia University, Department of Industrial Engineering and Operations Research (IEOR), Students, Columbia University - Columbia Business School, Department of Industrial Engineering and Operations Research & Data Science Institute, Columbia University and Columbia University - Columbia Business School, Decision Risk and Operations
Downloads 26 (1,459,862)

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Digital twin, Generative models, Large language models, Calibration, Synthetic control, Distribution shift

5.

E-GEO: A Testbed for Generative Engine Optimization in E-Commerce

Number of pages: 54 Posted: 15 Jul 2026
Puneet S. Bagga, Vivek F. Farias, Tamar Korkotashvili, Tianyi Peng and Yuhang Wu
Massachusetts Institute of Technology (MIT), Massachusetts Institute of Technology (MIT) - Sloan School of Management, Massachusetts Institute of Technology (MIT), Columbia University - Columbia Business School and Columbia University - Columbia Business School, Decision Risk and Operations
Downloads 8

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Generative Engine Optimization, Large Language Models, Benchmark Dataset, Generative AI in E-commerce, Prompt Optimization