Answer:
The money supply decreases by $25.5 million and money supply decreases by $170 million.
Explanation:
The reserve ratio is 15%.
The reserve sells bonds worth $25.5 million to the public.
This will cause a reduction of $25.5 million reserves as banks will need to pay Fed for the bonds.
The money supply will change by
= [tex]\frac{1}{reserve\ ratio} \times\ change\ in\ reserves[/tex]
= [tex]\frac{1}{0.15}\ \times\ -\$ 25.5\ million[/tex]
= [tex]6.67\ \times\ -\$ 25.5\ million[/tex]
= - $170 milion
So, the money supply will decrease by $170 million.