In such cases, he favors "maturity matching," buying a bond that comes due as the money is needed.

This 'maturity matching' reduces risk (as we saw in section 1.1.4) and therefore the need for low- or zero-yielding reserves.

For the short term, however, he recommended "maturity matching," that is buying a bond, note, bill or certificate of deposit that will mature when the funds are needed for a particular purpose, like a tax or tuition payment.