An increase in real GDP leads to a rightward shift in money demand, which subsequently increases the equilibrium interest rate due to higher demand for liquidity. Therefore, the correct answer is option 2) money demand to the right and increase the equilibrium interest rate.
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An increase in real GDP shifts money demand to the right, increasing the equilibrium interest rate. This occurs because a growing economy requires more liquidity for transactions. Therefore, the correct option is 2) money demand to the right and increase the equilibrium interest rate. ;