To solve all this, it's pretty simple, and the U.S. actually used to do it: heavily tax the super rich. Heavy taxation and then appropriate use of those funds for education, R&D funding, infrastructure, etc. is actual trickle-down economics. And mega corporations should be heavily taxed instead of holding the country economically hostage. They jumpstart their companies off of government funding and R&D and then act a…
(i) it solves the capital accumulation problem (ii) you can accommodate the hoarding by guaranteeing people a job at the living wage, which then injects the right amount of new money, both temporally and spatially, to offset the hoarding.
Tax has nothing to do with raising money. Tax is about reducing the capacity of the private sector to hire people so the public sector can hire them instead. If there is unemployment then the public sector hasn't hired enough people or taxes are too high/ineffective.
It's never about money. It's always about stuff.
Here's how it works[1]
[1]: https://new-wayland.com/blog/how-the-job-guarantee-fixes-mai...