Chapter 15 Summary- The money demand curve arises from a trade-off between the opportunity cost of holding money and the liquidity that money provides. The opportunity cost of holding money depends on short-term interest rates, not long-term interest rates. Changes in the aggregate price level, real GDP, technology, and institutions shift the money demand curve.- According to the liquidity preference model of the interest rate, the interest rate is determined in the money market by the money demand curve and the money supply curve. The Federal Reserve can change the interest rate in the short run by shifting the money supply curve. In practice, the Fed uses open-market operations to achieve a target federal funds rate, which other short-term interest rates generally track.- Expansionary monetary policy reduces the interest rate by increasing the money supply. This increases investment spending and consumer spending, which in turn increases aggregate demand and real GDP in the short run. Contractionary monetary policy raises the interest rate by reducing the money supply.
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