Professor Hartmann's research applies and develops econometric techniques to analyze questions relevant to marketing and economics. One stream of his research focuses on decision-making over time. He has studied intertemporal substitution of demand in capacity constrained industries, the extent of switching costs in frequency reward programs, and price discrimination. Another stream of his research considers the effects of social ties on the decisions of firms and consumers. This research finds a link between social networks and outsourcing and also explores demand complementarities within groups of customers. His current work focuses on television advertising, internet advertising and the interplay between the two.

Wesley R. Hartmann joined the Stanford Graduate School of Business as an Assistant Professor in 2003. He previously received his PhD and Master's in Economics from the University of California at Los Angeles. Prior to his graduate studies he worked as a consultant for Economic Analysis (acquired by LECG in 2004).

Professor Hartmann teaches the core Strategic Leadership class in the MBA program and a PhD course titled Advanced Empirical Methods. He previously taught the core Marketing Management class and the Principles of Economics.