Why are relative prices important in the economy​

Relative-price changes, like inflation, can cause price pressure in an economy. Relative-price changes are not a monetary phenomenon. They arise in market economies as individual prices adjust to the ebb and flow of the supply and demand for various goods. Relative-price movements convey important information about the scarcity of particular goods and services. A rising relative price indicates that demand is outstripping supply (or that supply is falling behind demand), while a falling relative price denotes just the opposite. A rising relative price induces consumers to conserve on the good in question and to look for substitutes. A rising relative price also, by increasing profit opportunities, entices producers to bring more of the good in question to market.

In this way, relative-price changes—no matter how uncomfortable they are for consumers or producers—transmit vital information necessary for the efficient allocation of resources throughout any market economy. Inflation, by contrast, contributes no information useful to our consumption, production, or labor choices. If anything, inflation can temporarily distort vital relative-price signals, leading people to make unsound economic choices. It can even cause people to shift their time and resources away from activities that foster production and long-term economic growth to activities intended to protect their wealth rather than expand it.