The fact that output gaps will not last indefinitely, but will be closed by rising or falling inflation is the economy's:

What is meant by the “economizing problem”?

Please provide the best answer for the statement.

The solvency of Social Security can be extended if

A. the trust fund invests in private corporate securities. B. the tax rate is reduced. C. the retirement age is reduced. D. the cap on taxable earnings is lowered.