Inflation 101 - Part 2

In Part 1, we looked at four "gauges" on the economic dashboard and noticed they weren't agreeing with each other. To understand why that matters, we need to get clear on a few words that get thrown around a lot but rarely get explained: inflation, disinflation, and stagflation.

Let's take them one at a time.

Inflation: prices going up

Inflation is simply the rate at which prices are rising. If a cart of groceries cost $100 last year and costs $103 this year, that's roughly 3% inflation.

A little inflation is normal and even healthy — it usually means the economy is growing. The Federal Reserve (the U.S. central bank) targets about 2% a year as the sweet spot: enough to keep the economy moving without eroding your paycheck too fast.

Right now, inflation is running around 3.4% — above target, but not dramatically so. The real question isn't "is there inflation" (there's always some) — it's "is it under control, and is it getting better or worse?"

Disinflation: inflation slowing down

This is a word people often confuse with deflation (prices actually falling), but it means something different and much more common: inflation is still happening, just at a slower rate.

If prices rose 5% last year and 3% this year, that's disinflation — you're still paying more, just not as much more.

Disinflation is usually the "good news" scenario after a period of high inflation. It's what typically happens when:

• The economy cools down a bit (people spend less)

• Interest rates stay high for a while, taking some heat out of demand

• Supply chains and production catch up

Think of it like a car slowing from 80 mph to 55 mph. You're still moving, but the ride gets a lot less scary.

Stagflation: when the usual rules break

This is the word that's been showing up a lot lately, and it's the one worth understanding most.

Normally, inflation and economic growth are like a seesaw:

• Economy too hot? Inflation tends to rise.

• Economy cooling down? Inflation tends to fall.

That relationship is what lets the Fed do its job. If inflation is too high, it raises interest rates to cool things down. If the economy is struggling, it cuts rates to warm things up. One dial, roughly one problem at a time.

Stagflation is when that seesaw breaks — the economy is weak or shrinking (stagnant growth) at the same time inflation stays high. Both problems show up together, and there's no single dial that fixes both.

Why does this happen?

The classic trigger is a supply shock — something that makes goods more expensive to produce or ship, regardless of how much people are buying. The textbook example is the 1970s, when oil-producing countries cut supply and prices spiked. That pushed up the cost of everything that depended on oil (which is almost everything), while the economy simultaneously struggled — a brutal combination that gave us the word "stagflation" in the first place.

Sound familiar? Right now we have:

• A cooling economy (softening jobs, housing, retail — the disinflation signal)

• But also elevated oil prices tied to Middle East tensions

• And a Federal Reserve that, in its most recent meeting, signaled it might need to raise rates if inflation doesn't cool — even though the job market is already looking soft

That's not a guarantee we're heading into stagflation. But it's exactly the kind of mismatched signal that makes economists start using the word.

Why this distinction actually matters to you

What it generally looks like

Disinflation

Prices still rising, but slower. Interest rates can eventually come down. Historically the friendliest scenario for stocks and borrowing costs.

Stagflation

Prices stay high while jobs and growth weaken. The Fed is stuck — can't easily cut rates (inflation) or hold them (economy). Historically tough on stocks and hard on household budgets.

Neither of these is locked in yet. As of this week, the data genuinely supports either story — that's why it's worth paying attention to, not despite it.

What to watch next

Two data points will tell us a lot:

• July inflation data (PCE), out August 26 — if it comes in cooler than expected, disinflation gets more likely.

• August jobs report, out September 4 — if hiring stays weak and inflation doesn't cooperate, that's the stagflation signal getting louder.

In Part 3, we'll look at the bond market — the piece of this story that had the U.S. Treasury taking unusual action just this week, and why long-term interest rates are sending such a different signal than everything else.

This is Part 2 of a 5-part series making sense of the current economic moment. Part 1 covered the big picture; Part 3 explains why the Treasury is buying back its own debt. This series is for general understanding only — it isn't financial advice.