Interest Rate Determination

Money Supply Measure "M3"

M3 is an even broader definition of the money supply, including M2 and other assets even less liquid than M2. As the number gets larger (i.e., "1, 2, 3…"), the assets included become less and less liquid. The additional assets include large-denomination time deposits (amounts greater than $100,000), balances in institutional money funds (these include pension funds deposits), responsible party (RP) liabilities issued by depository institutions (refers to repurchase agreements), and eurodollars held by U.S. residents at foreign branches of U.S. banks worldwide and all banking offices in Canada and the United Kingdom (eurodollars are any U.S. dollar deposits made in a depository institution outside the United States). M3 excludes assets held by depository institutions, the U.S. government, money funds, and foreign banks and official institutions.

The United States values of all three major money supply definitions are given in Table 18.2 "U.S. Money Supply Measures (in Billions of Dollars), November 2009". Note that the M1 definition of money is just under one-tenth of the value of the annual GDP in the United States. The M2 money supply is almost six times larger, indicating substantial deposits in savings and time deposits and money market funds. M3 was last reported by the U.S. Fed in February 2006. But at that time, it was almost 90 percent of the U.S. annual GDP.

Table 18.2 U.S. Money Supply Measures (in Billions of Dollars), November 2009