Answer:
Nominal Interest rate
Step-by-step explanation:
According to liquidity preference theory, money supply and money demand are balanced by adjustments of Nominal Interest rate. Suppose you have some money, you will decide to either keep it in cash or in the bank. If you keep the money in cash, the opportunity cost of keeping in cash is the interest rate earned if you would have kept the money in the bank. Bank offers the nominal interest rates and not the real interest rates. Bank rates are not adjusted for inflation. So if the interest rate on money increases the opportunity cost of holding money in cash increases. If money supply in the economy increases the demand for money will increase only by reducing the interest rate because then only people fir hold cash and demand higher money. So, money supply and money demand are balanced by adjustments of the Nominal Interest rate.