There is prosperity, and utilities. When the economic growth rate increased, it will cause reduced expenditures and increased revenues, and in the end, however, you will not have any debt.
With material progress and utilities. When the rate of economic growth increased, it would cost reduction and revenue increase. And finally you will have no debt.
The prosperity of the object, and utility. When the economic growth rate increased, it will make the expenditure decrease and increase revenues. And finally, you have no debts.