Are we in a stagflationary period now, and how would an economist even measure the difference from a regular demand‑led slowdown?

Q1 2026 GDP came in at 2.0% annualized — not great but not a recession. Business investment surged 10.4%, almost entirely driven by the AI boom and Big Tech's record $130 billion in capital expenditures. So on the surface, GDP looks okay.

But underneath the hood, things are flashing warning signs. The headline PCE index — the Fed's preferred inflation measure — accelerated to a 4.5% annual rate in Q1, the hottest since Q3 2022. Consumer spending slowed to just 1.6% growth. And the University of Michigan Consumer Sentiment Index just plummeted to 47.6 — a record low dating back to 1952. One‑year inflation expectations soared from 3.8% to 4.8% in a single month.

Against that backdrop, Ray Dalio — founder of Bridgewater Associates — told CNBC this week: "We're certainly in a stagflationary period". For regular Americans, he argues, the economy already looks like stagflation: sticky inflation combined with slow growth, elevated borrowing costs, and slipping wage gains.

So here's my question for the economists here:

How does one empirically distinguish a "stagflationary period" (negative supply shock + weak demand) from a plain‑vanilla demand‑led slowdown with sticky inflation, before the full data comes in?

Specifically — Dalio is making a positive claim about current conditions. But the official data still shows positive growth (2.0%), a labor market that remains stable albeit with low hiring, and the Fed still projecting a soft landing. What specific economic indicators would you look at to test whether the US is already in a stagflationary regime versus simply experiencing persistent inflation with below‑trend growth?

And if the Fed maintains its current policy stance (median dot plot still showing one rate cut for 2026), does that risk locking in stagflationary expectations and hurting its credibility in the way Dalio warns about?