Question

what is rent ? write the modern theory of rent​

Answer 1

Hey mate...
Money or other consideration paid by a tenant to a landlord in exchange for the exclusive use and enjoyment of land, a building or a part of a building. ... The word has also come to be used as a verb as in to rent an apartment, although the proper legal term would be to lease an apartment.

Answer 2

Concept of Modern Theory of Rent

Modern theory of rent is an amplified and modified version of Ricardian theory of Rent. It was first of all discussed by J.S. Mill and after that developed by economists like Jevons, Pareto, Marshall, Joan Robinson etc. According to modern theory, economic rent is a surplus which is not peculiar to land alone.