Brett Hollenbeck is an expert in quantitative marketing and empirical industrial organization, specializing in digital markets and consumer behavior. Professor Hollenbeck analyzes the relationship between competition and innovation, the role of reviews in e-commerce, and the regulation of allegedly manipulated ratings on e-commerce platforms. He applies various empirical, quantitative, and qualitative techniques in these contexts, including machine learning (ML), econometrics, surveys, and conjoint analysis.
Professor Hollenbeck has been retained as an expert witness in multiple litigation matters and has testified in deposition.
In his research, Professor Hollenbeck focuses on topics at the intersection of economics and marketing. He has examined how online reviews and ratings affect consumer decision-making and market competition, and has conducted research on customer loyalty programs, e-commerce advertising strategies, retail promotions on social media, online sports gambling, and privacy regulation. In addition, Professor Hollenbeck has studied horizontal mergers and innovation in concentrated markets.
Professor Hollenbeck publishes articles in peer-reviewed marketing and economics journals, including Marketing Science, the Journal of Marketing Research, and the RAND Journal of Economics. He serves on multiple editorial boards of academic journals and is an associate editor at Management Science and Marketing Science.
At UCLA Anderson, Professor Hollenbeck teaches statistical methods, survey design, segmentation, and text analysis to M.B.A. and executive education students, with a focus on using quantitative tools to model data and measure customer preferences.
Prior to entering academia, Professor Hollenbeck held research fellowships in the Office of Tax Policy at the U.S. Department of the Treasury and at the U.S. Chamber of Commerce.