Explanation:

- Abhijit Vinayak Banerjee was awarded the 2019 Nobel Memorial Prize in Economics.

- He received this award alongside Esther Duflo and Michael Kremer for their experimental approach to alleviating global poverty.

- Option 1: Literature - This is incorrect. The Nobel Prize in Literature is awarded for achievements in the field of literature, not economics.

- Option 2: Economics - This is the correct option, as Banerjee's work was recognized in the field of economics.

- Option 3: Chemistry - This is incorrect. The Nobel Prize in Chemistry is awarded for contributions in chemical sciences.

- Option 4: Physics - This is incorrect. The Nobel Prize in Physics is awarded for advancements in the field of physics.