Observing the poor in a cold, scientific way doesn't mean you are cold-hearted. It means you care.
Immunisations shot up.
Banerjee, Duflo, and Kremer have conducted 560 such "experiments". They changed our thinking. Richly deserved award.
The genesis of Banerjee's 560 great ideas was 20 years ago. NYAY was this year. [In fact, he proposes UBI for ALL Indians above age 15.] WDTT