Taking that political scenario as an example. Was the decline caused simply because Harley kept to the same working formula refusing to innovate for competition? As to the likes of Honda and Co?
Manufacturing is cheaper if you have access to resources and such. Japan may of had abundant of but in this case I don't feel it's was all about manufacturing costs.
Was it a cash cow situation, where their one formula was working but as well as where Harley were reluctant to invest in a different avenue, to innovate causing cow to dry up. And that is when they called in the government to settle? That is always the impression I seem to receive.
Excluding manufacturing costs was it because they were scared of an innovation being a failure?
The same cash cow formula can be seen with the likes of Disney Pixar and Toy Story 5, a pointless movie plot at this point where if money was invested, a new creation could be born.
A current account deficit is a capital account surplus, assets and exports compete in the balance of payments, an asset windfall kills exports by increasing the currency hurdle and embedded asset price.
What you are seeing is "the bar" for a successful manufacturing business increasing until only the most profitable are left -- things like chips, things like shell companies that exist to monetize a brand. "New growth" isn't highly profitable so it never has a chance to get started (unless a recipient of an asset windfall is willing to finance it all the way to "the bar" -- see: Elon Musk).