Professor Marie-Claire Villeval from the University of Lyon visits the department for the week of April 18 - 22. She will present a public lecture on Tuesday at 3:00 pm entitled "From Freakonomics to Neuroeconomics: the Role of Incentives" in MacDonald Institute 300 and will present a paper in the visiting speaker series on Thursday at 3:30 entitled "Intermittent Rewards and the Persistence of Effort" in Mack 304. Professor Villeval is Associate Editor at the Journal of Public Economic Theory and at the Journal of Economic Behaviour and Organization. She is president of the French Economics Association.