Money Supply
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Money Supply, Inflation, & Stock Market
What is meant by the money supply? The term itself implies that a certain amount of money exists at any given time, even though the quantity may be unknown. In truth there can be no meaningful measure of the quantity because it is continually varying as a function of demand.

The money supply, or money stock, refers to the total amount of money held by the nonbank public at a point in time in an economy. There are several ways to measure such an amount (called a monetary aggregate), but each includes currency in circulation plus demand deposits (checking-account money).

Because money is anything that can be used in settlement of a debt, there are varying measures of money supply. Since most modern economic systems are regulated by governments through monetary policy, the supply of money is broken down into types of money based on how much of an effect monetary policy can have on that type of money. Narrow money is the type of money that is more easily affected by monetary policy whereas broad money is more difficult to affect through monetary policy. Narrow money exists in smaller quantities while broad money exists in much larger quantities. Each type of money can be classified by placing it along a spectrum between narrow (easily affected) and broad (difficult to affect) money. The different types of money are typically classified as Ms. The number of Ms usually range from M0 (most narrow) to M3 (broadest) but which Ms are actually used depends on the system. The typical layout for each of the Ms is as follows:

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M0: Physical currency. A measure of the money supply which combines any liquid or cash assets held within a central bank and the amount of physical currency circulating in the economy. M0 (M-zero) is the most liquid measure of the money supply. It only includes cash or assets that could quickly be converted into currency. This measure is known as narrow money because it is the smallest measure of the money supply.

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M1: M0 + demand deposits, which are checking accounts. This is used as a measurement for economists trying to quantify the amount of money in circulation. The M1 is a very liquid measure of the money supply, as it contains cash and assets that can quickly be converted to currency.

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M2: M1 + all time-related deposits, savings deposits, and non-institutional money-market funds. M2 is a broader classification of money than M1. Economists use M2 when looking to quantify the amount of money in circulation and trying to explain different economic monetary conditions. M2 is key economic indicator used to forecast inflation.

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M3: M2 + all large time deposits, institutional money-market funds, short-term repurchase agreements, along with other larger liquid assets. The broadest measure of money; it is used by economists to estimate the entire supply of money within an economy.

Money Supply and Inflation
Price inflation is commonly thought to be caused by “too much money chasing too few goods.” The general price level is indeed correlated with the money supply, but correlation should not be confused with causation. In a modern economy, prices are seldom driven by the money supply. More commonly, the money supply reacts to changes in the general price level.

A notable example is the equation of exchange in the quantity theory of money.

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Money Supply And M0. (June 9, 2021). Retrieved from https://www.freeessays.education/money-supply-and-m0-essay/