Sahni is an associate professor of marketing at Stanford GSB. His research investigates consumer and seller decisions in digital marketplaces. His research employs methodologies ranging from econometric analysis to large-scale experimentation to make inferences from data. In recent years, he has studied how platform policies can increase welfare of all sides of a marketplace. His research also examines the effects of various marketing activities including internet search advertising, display advertising, retargeting, and email marketing. He has published several articles in leading marketing and economics journals, including Marketing Science, Management Science, Quantitative Marketing and Economics, and the Review of Economic Studies. His research has been recognized with awards, including American Marketing Association’s Paul Green Award, Weitz-Winer-O’Dell Award, and Quantitative Marketing and Economics Journal’s Dick Wittink prize. He was named to the Marketing Science Institute’s list of Scholars in 2022.

Sahni joined Stanford in the summer of 2012. He received his PhD from the University of Chicago Booth School of Business in 2012. He holds an undergraduate degree (Integrated M.Tech.) in mathematics and computing from Indian Institute of Technology Delhi.