Question $4(23$ marks total$)$

About two countries, Country A and Country B$,$ you have the following data of their real GDP growth rate, Money supply growth rate, the real interest rate, and the tax rate $($which is levied on nominal income$).$ The velocity of money is stable in both countries.

$\backslash$table$[[,$Country A$,,$Country B$],[$Real GDP growth rate $(\frac{Y}{Y})$:$,5\%,7\%,],[$Money stock growth rate $(\frac{M}{M})$:$,26\%,,10\%$