When I saw this line in NDTV news site today, I totally understood what was being discussed
The Modi card may also now be facing diminishing returns, as voters tire of seeing the Prime Minister’s face at every street corner and in every newspaper, and of hearing his voice on the radio.
The law of diminishing returns, as per the economics class that I attended last week ( as part of the MBA program ) states that, if you keep increasing the inputs, after a certain period, the output starts to come down ( look up in Google, for the exact definition )
I am happy that the studies that I have taken up is helping me see and understand the world in a better way and also comprehends things that I read, in a better way. Thank you mom for your suggestion of higher studies.