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Gah-Yi Vahn

Assistant Professor of Management Science and Operations

PhD (Berkeley), BSc (University of Sydney)

Gah-Yi Vahn is an Assistant Professor of Management Science and Operations at London Business School, where she teaches in the full-time MBA, MiM and PhD programs. Gah-Yi's research is in Big Data analytics, specifically decision-making with complex, high-dimensional and/or highly uncertain data. Her interdisciplinary research spans a number of methodological areas, and brings new insights into decision problems in operations management and finance. Her research has been featured in Management Science and the Business Strategy Review. 

Gah-Yi has a background in five different areas of the mathematical sciences, with a PhD in Operations Research (2012), an MA in Statistics (2011) and an MSc in Industrial Engineering & Operations Research (2008) from the University of California, Berkeley, and having majored in physics and mathematics at the University of Sydney, where she graduated from with 1st Class Honours and University Medal (2007).


Business analytics in the age of big data

Vahn G Y

Business Strategy Review 2014 Vol 25:3 p 8-9


Robust portfolio choice with learning in the framework of regret: Single period case

Lim A E B; Shanthikumar J G; Vahn G-Y

Management Science 2012 Vol 58:9 p 1732-1746


Conditional value-at-risk in portfolio optimization: Coherent but fragile

Lim A E B; Shanthikumar G J; Vahn G-Y

Operations Research Letters 2011 Vol 39:3 p 163-171


Modeling Light Propagation in Photonic Crystal Devices

Vahn G-Y; White T P; Steel M J; de Sterke C M; Dossou K; Botten L C

Journal of Applied Physics 2007 Vol 102

Current Teaching

Masters in Management:

CM04 Management Analysis and Systems


C167 London Business Experience

Awards & Honours:

2011 Katta Murty Best Paper Prize in Optimization, UC Berkeley

2007 University Medal in Physics, University of Sydney
2002 Korean Ministry of Education Prize for Academic Excellence
2002 Australian Student Prize

Faculty Assistant

Vicki Sale


Telephone: +44 (0)20 7000 8821

Research Interests

“Big Data” analytics - developing and applying new methods for decision-making in data-intensive settings.

Business analytics in the age of Big Data

Gah-Yi Vahn

Descriptive and predictive analytics with Big Data are becoming more prevalent in a wide range of industries.

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