extract any funds necessary to reach optimal social accumulation goals
or inject any funds necessay to reach socially optimal consumption levels
we don't need no damn home front prudence here
between the system state based transfer system and the system state based credit system
we can automate the systemic adjustment to many agent actions and transactions
that have external effects
think of the interest rate as a pigou tax or subsidy a registration of the externality effect
of any units choice of expenditure on consumption or investment goods
in particular durable goods
obviously a tax/subsidy on expenditures is a full symetrical system that a borrowing rate isn't
unless the borrowing rate can be both charge in one system state and discount in another
