He holds a PhD in management science and engineering and a MA in economics, both from Stanford University. His research is in the areas of data science, operations, management science, industrial organization, and market design. Gabriel is particularly interested in developing mathematical, computational, and econometric models to study the economics and the optimization of online platforms. After his PhD, he spent 10 years as faculty at Columbia Business School.
Gabriel is a recipient of the IFORS Prize for Operations Research in Development 2002, given every three years to the best application of operations research/management science in a developing country. He also received the MSOM Young Scholar Prize 2015 that recognizes exceptional young researchers who have made outstanding contributions to scholarship in operations management. Gabriel has advised and worked with several online platforms.