The people of Mali get to grips with the problem of sanitation
2 billion people still lack basic sanitation access. Authors Alzua and Djebbari show that involving the community in a sanitation program in Mali leads to shifts in collective practices as families build and start using latrines.
What encourages invention? A study presented by Stefanie Stantcheva, winner of the Best Young Economist Award, shows that taxes in the U.S. have a great influence on innovation.
