"Is vast inequality necessary?" Of course it is not "necessary".
However Krugman avoids the question of, does it deter others or have a negative effect on the economy as a whole?
That's because it doesn't. Even he realizes that there is no set amount of money/wealth, and no matter the wealth of others, there is the same opportunity(s) for everyone else to create their share, on which there is no cap.
"Is vast inequality necessary?" Of course it is not "necessary".
However Krugman avoids the question of, does it deter others or have a negative effect on the economy as a whole?
That's because it doesn't. Even he realizes that there is no set amount of money/wealth, and no matter the wealth of others, there is the same opportunity(s) for everyone else to create their share, on which there is no cap.