# money-as-measure-of-value

## Definition

The use of money as the common instrument for estimating and comparing the value of commodities in commercial societies, where money has replaced barter as the primary medium of exchange. Smith argues that while money is the exact measure of real exchangeable value at the same time and place, it becomes less reliable as a measure when comparing values across different times and places due to fluctuations in the value of the monetary metal itself.

## Source Chapter

Book 1, Chapter 5: "OF THE REAL AND NOMINAL PRICE OF COMMODITIES, OR OF THEIR PRICE IN LABOUR, AND THEIR PRICE IN MONEY."

## Context

Smith develops this concept while explaining why people commonly estimate value by monetary price rather than by labour. He argues that money is more natural and obvious as a measure because it is a plain palpable object, while labour is an abstract notion. However, he also notes that money's reliability as a measure is limited to the same time and place, as its value can vary across different locations and time periods.

## Economic Domain

Exchange

## Smith's Original Wording

"At the same time and place, therefore, money is the exact measure of the real exchangeable value of all commodities. It is so, however, at the same time and place only."

## Modern Interpretation

Money as measure of value represents the fundamental role of currency in modern economies as the standard unit for valuing goods and services. While Smith's concerns about monetary value fluctuations remain relevant, modern economies have developed more sophisticated monetary systems and price indices to address these issues. The concept underlies modern discussions of monetary policy, exchange rates, and the challenges of maintaining stable value measures in a globalized economy.