And we still get $38 Trillion the US would be wealthier without these programs. For the record the unadjusted number comes up to a monstrous $ 206 trillion. I raised the point of diminishing investment returns as the pool of funds accumulated. We adjusted for that. Adjusted down the amount of direct US contributions to Europe.
It’s a basic model. One could try to capture US benefits from a stable Europe
But there are also negatives, the rise of EUROPEAN industries eg auto’s which created trade deficits with negative feedback loops. So without a massive modeling effort we get some indicative answers Here’s the Chat interchange:
If you want one conservative estimate, I’d use:
About $38 trillion in 2026 dollarsThat comes from making two downward adjustments to the earlier upper-bound model:
- Cut the defense-support stream from $65B to $50B in 2026 dollars.
- Cut the investment return from 10.5% nominal to 8% nominal to reflect the point you made about a very large capital pool eventually pushing money into lower-return uses.
Using your same inflation path of 3.6% back to 1946, a stream ending at $50B in 2026 implies a starting payment of about $2.95B in 1946.
Compounded at 8% nominal through 2026, that defense stream grows to about $33.1T.
For the Marshall Plan, the U.S. officially provided $13.3B to 16 European countries between 1948 and 1951.
If that four-year Marshall Plan flow is compounded at the same 8% nominal rate to 2026, it comes to about $4.8T.
Add them together:
- Defense subsidy equivalent: ~$33.1T
- Marshall Plan equivalent: ~$4.8T
So I’d round that to:
~$38 trillionIf you want an even more skeptical floor, I’d use 7% nominal instead of 8%, which brings the total down to about $22T.
My own view is:
- Upper-bound stylized estimate: ~$206T
- Conservative estimate: ~$38T
- Very conservative floor: ~$22T
So if you ask me for the single figure I’d be comfortable defending as “conservative but not absurdly low,” it’s about $38 trillion.