Any change in the quantity of money produces an exactly proportionate change in the price level. Article Information; Abstract By extending his data, we document the instability of low-frequency regression coefficients that Lucas (1980) used to express the quantity theory of money. On account of the expansion of the supply of money, interest rates may fall but investment will not rise unless the marginal efficiency of capital is revived. Whereas Simon Newcomb formulated the equation of exchange, he rejected the causality and the proportionality postulates of the quantity theory in some cases. Thus, the strategic variable is investment and not the quantity of money. In chapter 11 of Man, Economy, and State [1962] (2009), Rothbard sets out his theory of money and its influences on business fluctuations. Here’s our challenge. The theory holds that to effectuate revival, investment must exceed saving. Producers are … April 13, 2009. In the following article by Elliott Wave International we are going to look further at the Quantity Theory of Money. A Critique of the Quantity Theory of Money. Definition: Quantity theory of money states that money supply and price level in an economy are in direct proportion to one another.When there is a change in the supply of money, there is a proportional change in the price level and vice-versa. In other words, money is demanded for transac­tion purposes. Antal E. Fekete. Quantity Theory of Money The approach of classical economists toward money states that the amount of money available in the economy is determined by the equation of exchange: Deflation Basics Series: The Quantity Theory of Money By Elliott Wave International. When the money supply changes, there is a proportional change in price levels, and when price levels change, the money supply changes by the same proportion. In my previous paper The Revisionist Theory and History of Depressions I argued that persistently falling interest rates cause an erosion of capital, unseen but nonetheless lethal. We demonstrate three insights. This article investigates whether the quantity theory of money is still alive. The Quantity Theory of Money (QTM) is one of the classical macroeconomic models that explain the linkage between money and prices. Among the many insights Rothbard provides, we find a compelling and cogent refutation of Irving Fisher’s equation of exchange (in section 13)—which underlies the monetarist quantity theory of money. In monetary economics, the quantity theory of money (QTM) states that the general price level of goods and services is directly proportional to the amount of money in circulation, or money supply.For example, if the amount of money in an economy doubles, QTM predicts that price levels will also double. 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