This was reported on the Nobel Committee on Twitter.
BREAKING NEWS:
The 2019 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel has been awarded to Abhijit Banerjee, Esther Duflo and Michael Kremer “for their experimental approach to alleviating global poverty.” # NobelPrizepic.twitter.com/SuJfPoRe2N
It is noted that they received the prize "for an experimental approach to the fight against poverty."
Earlier, the Ethiopian Prime Minister Abia Ahmed Ali received the Nobel Peace Prize.