Who is known for the concept of "public goods," which are goods and services that are non-excludable and non-rivalrous in consumption?
A. Amartya Sen
B. Elinor Ostrom
C. John Maynard Keynes
D. Paul Samuelson
Paul Samuelson is known for the concept of "public goods," which are goods and services that are non-excludable and non-rivalrous in consumption.