Some Perspective on Inflation

inflation

Some economists and market participants view inflation as one of the most important economic indicators.
Market participants spend a lot of time worrying about a lot of things, but inflation is pretty close to the top of the list most of the time. Not so much for a sustained period of years before covid, when some suggested it was dead, but very so much since, and particularly now.

Hard to pin down what it is. Not that the definition doesn’t seem straightforward: “A sustained increase in the general price level of goods and services in an economy resulting in a decline in the purchasing power of money.” But the axioms on which it is based are all on the squishy side when you start defining them to measure them, to say nothing of the difficulties of the measuring. General, price level, sustained, Goods and services, purchasing power, and money. They are hardly axiomatic. Nevertheless, no matter how imperfect, it’s better to have some indication of where it is and where we think it is headed. That requires choosing a metric, of which there are several. CPI is the one most commonly referenced and used.

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See more: The Optics of Inflation

What it affects. Lots of things, of course. Kind of like air. Most importantly it is people and how they live their lives. Affordability, choices and tradeoffs, lifestyle. Happiness and sentiment. It affects companies and their strategies, revenues, costs and employment. And interest rates and the setting of those by the markets and central banks.