It’s the only estimate I know of. Here’s a critical look at it: https://www.factcheck.org/2019/03/how-much-will-the-green-ne...

Seems to me that link more or less debunks the $93T estimate as partisan bullshit, which is what I expected it to be.

To put it in perspective, the GDP of the US is currently about $19T, so they're saying the Green New Deal would cost 100% of the GDP for five straight years. This seems... exaggerated.

> This seems... exaggerated.

Not if you understand MMT and its proponents. AOC believes that every dollar spent by the government on infrastructure magically turns into five dollars of economic growth, so she's willing to go into deep debt to make it happen.

Now that definitely sounds like partisan nonsense.

Perhaps, but it's true. AOC is a proponent of MMT[1] and has made that "five dollars for every one dollar spent" argument[2].

[1] https://www.businessinsider.com/modern-monetary-theory-mmt-e...

[2] I can't find the source for this one right now, but it was in a video interview regarding the green new deal, right around when it was announced.

Adding on to this, the five dollars for every dollar spent makes sense in some contexts. It’s a key factor in support of federally funded basic research like NASA, NSF, DARPA, etc. I actually believe this based on the reports I’ve seen for NASA spin offs.

But what AOC is talking about is not basic research, which has a multiplicative effect because it opens up new technologies, new products, and new industries. A New Deal is work for works sake, and economically substitutive... so the return is actually less than a dollar for every dollar spent.