Paul Sas, Stanford-trained behavior design strategist, is a leading expert in applying behavioral economics to software. He has led teams to integrate behavioral economics into products at established companies such as Intuit and E-Trade. He has collaborated frequently with Dan Ariely and Irrational Labs, and has helped numerous startups translate psychology into significant product enhancements.
Clients of Motivation Engineers have increased revenue, refined products, and increased customer delight. One 2016 client raised more than 25 million dollars in venture capital after integrating insights from Motivation Engineers into their prototype. 
While working as Intuit's Behavioral Economist, Paul helped teams at TurboTax, Mint and QuickBooks to bake behavioral insights into product development. In 3 years, he co-ran more than 30 workshops with Dan Ariely, to train designers, developers and product managers in practical ways to connect psychology and behavioral economics in consumer software. 
His original research identified the Delmore Effect: the human tendency to resist setting goals for a domain that is emotionally important. Paul studied at Stanford with one of the field's founders, Amos Tversky. He also holds a masters degree from Harvard in cognitive science.
He has chaired BayCHI's monthly program for over a decade, which meets every 2nd Tuesday of the month at Xerox PARC (Palo Alto Research Center).

He has taught courses at Stanford University Summer School on the psychology of business, with a focus on the biases and limitations in human decision-making, game theory, motivation and goals. Early on, he was a research intern in Xerox PARC User Interface Research Group, an NSF Summer Fellow at Santa Fe Institute, and a research intern at Bolt, Beranek and Newman in the cognitive science group working to integrate project-based interactive education into K-12 collaborative learning environments in Boston schools.