Climate change poses an existential threat. The authors argue that carbon pricing and green research and development (R&D) support are good economics, but their implementation can be improved. Even if carbon prices are generalized and given more substance, green R&D is still likely to be smaller...

What is the best way to reward innovation? While prizes avoid deadweight loss, intellectual property selects high social surplus projects. Optimal innovation policy thus trades off the ex-ante screening benefit and the ex-post distortion. It solves a multidimensional screening problem in the...

From Nobel Prize–winning economist Jean Tirole, a bold new agenda for the role of economics in societyWhen Jean Tirole won the 2014 Nobel Prize in Economics, he suddenly found himself being stopped in the street by complete strangers and asked to comment on issues of the day, no matter how...