Amartya Sen was awarded the Nobel Prize for his contribution to

Amartya Sen was awarded the Nobel Prize for his contribution to

Monetary Economics
Welfare Economics
Environmental Economics
Development Economics
This question was previously asked in
UPSC CDS-1 – 2017
Amartya Sen was awarded the Nobel Prize in Economic Sciences in 1998 for his contributions to welfare economics.
His significant contributions include work on social choice theory, welfare economics, poverty, famine, and the measurement of well-being. His capabilities approach is particularly influential in development economics and welfare studies.
While his work has major implications for Development Economics, the Nobel Committee explicitly cited his contributions to welfare economics as the basis for the award. He is also known for his studies on the causes of famine, arguing that they result from failures in food distribution rather than just food production.