> Krugman is free-market-if-only-but-we-need-regulation so not really as left as you portray
A Liberal and Keynesian. I'd say firmly on the left side of the spectrum, this is only contested by the more zealous Twitter leftists who'd frame the lot of them as right-wing/neo-liberals.
> I think you live in a bubble if you think Varoufakis and his ideas are well-known to the public.
None of their ideas are well-known to the public, just their political affiliation. Granted Varoufakis, it having been years since the Greek crisis, is receiving less attention now.
> We could also talk about Banerjee and Sachs,
I can already hear the collective "who?"
On the right I guess Sowell is still alive, over 90 years old.