Gateway Competitive Insights, LLC


Prior to joining Olin Business School, John was a Senior Expert in the Strategy Practice of McKinsey & Company, where he spent nine years working with clients (including many in the Fortune Global 1000) on competitive strategy, war gaming workshops and corporate and business unit strategy across a variety of industries (e.g., high tech, pharmaceuticals, aerospace & defense, health care payors and providers, consumer packaged goods, industrial products) and geographies (e.g., North America, Europe, Asia, Australia, Africa and South America). He led McKinsey's war gaming offerings, having helped to design, build and/or facilitate over 100 war gaming workshops during that time. John also was a key contributor to developing new approaches to business unit and corporate strategy more broadly, including topics such as competitive dynamics, resource reallocation and macroeconomic impacts on firms. John also contributed to the McKinsey Global Institute report "An Economy That Works: Job Creation and America's Future." Finally, he led many capability training workshops internally, including development and delivery of content (and was even filmed for a training video to help other faculty members understand how to deliver the material). 


Prior to McKinsey, John assisted major U.S. financial institutions with fair lending compliance as a consultant with Ernst & Young LLP, and spent five years with The Brattle Group, where he specialized in economic expert testimony in litigation support (including anti-trust and patent infringement cases), worked for a major U.S. electric utility in monitoring a pilot time-of-day rate program, and assisted on three transportation industry reports.


Has published in the McKinsey Quarterly and the Harvard Business Review (see Publications) and has a PhD in economics from Harvard University.

Gateway Competitive Insights, LLC, works with the following organizations

John Horn, President and founder


John is currently a Senior Lecturer in the Olin Business School at Washington University in St. Louis, where he teaches MBA students microeconomics, macroeconomics and industry analysis. He is an award-winning teacher (having been awarded the Reid Teaching Prize by the MBA and Professional MBA students at Olin, and receiving a Top 15% teaching award when he was an Adjunct Professor at the Robert H. Smith School of Business at the University of Maryland).

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