With Albert O. Hirschman, project management scholarship has what it lacks the most: an eminent intellectual and social scientist who has thought long and hard about project management, and especially the management of large transformative projects. Cass Sunstein, co-author of Nudge and a key...

The paper argues that if you want to get cost estimates right for large capital investment projects, you need to unlearn conventional cost forecasting, with its century-long record of getting cost estimates wrong. Instead you need to learn behavioral science, because behavior, and not artifacts,...