Conceptual

Quantity Theory of Money in Macroeconomics

The Quantity Theory of Money establishes an accounting identity within macroeconomics stating that nominal GDP is equal to the money supply multiplied by its velocity ($M \times V = P \times Y$). In this framework, $M$ represents the total stock of money in circulation, $V$ denotes the frequency at which monetary units are spent on final goods and services, $P$ signifies the aggregate price level, and $Y$ measures real output. This relationship serves as a fundamental theoretical constraint used to analyze the determinants of inflation and nominal economic activity by linking financial variables with real production metrics.