conversableeconomist.com/2026/09/29/interview-with-ariel-pakes-the-inner-workings-of-product-markets Interview with Ariel Pakes: The Inner Workings of Product Markets
Modeling car demand once required 40,000 price coefficients and more data than existed. An economist explains how switching to "characteristic space" cracked the problem, and how General Motors quietly tested the method against its own internal markup data.
— via Conversable Economist, conversableeconomist
