Michigan Surveys of Consumers

The University of Michigan's Surveys of Consumers is the source for three Consumer Activity indicators in this vault: Michigan Consumer Sentiment, Michigan 1-Year Inflation Expectations, and Michigan 5-Year Inflation Expectations. Understanding the survey once explains all three.

---

What the Survey Is#

A monthly household survey conducted by the University of Michigan's Institute for Social Research. It measures consumer attitudes toward personal finances, business conditions, and buying intentions. The survey has been running for decades, making it one of the longest-running consumer confidence datasets in the world.

How It Is Collected#

• Approximately 500 completed interviews per month (preliminary results are typically based on about two-thirds of the monthly sample).
• Based on a nationally representative sample of U.S. households.
• Each monthly survey contains approximately 50 core questions covering personal finances, business conditions, buying conditions, and price expectations.

---

Why the Fed Watches It — The Anchoring Argument#

Despite the small sample size and inherent consumer bias, the Federal Reserve monitors this survey closely. The reason is that inflation is partially a psychological phenomenon.

The Self-Fulfilling Prophecy (Wage-Price Spiral): Economists do not care whether the consumer's inflation math is correct. They care what consumers believe. If workers expect inflation to be 5% next year, they will demand a 5% wage increase today. Businesses pay those wages and must raise prices to cover the cost — which actually creates the inflation the worker was worried about. This is the wage-price spiral.

Tracking Direction, Not the Number: Economists ignore the raw percentage consumers guess. They focus on the direction. If 1-year inflation expectations jump from 3.8% to 4.7% in a single month, it signals that consumers are panicking and that long-term expectations may be becoming "unanchored" — a significant hawkish signal for the Fed.

---

The Critics — Why It Is Mathematically Unreliable#

1. The "Gas Station" Bias Consumers do not analyse supply chains or Fed policy — they anchor heavily on gas and grocery prices. During periods of high fuel costs, about a third of Michigan survey respondents spontaneously cite gasoline as their primary inflation concern. If gas prices spike, consumers predict massive inflation for the entire year even if housing and auto prices are falling.

2. Small Sample Size ~500 completed interviews per month is a relatively small sample for a country of 330 million. Critics argue this introduces meaningful noise and reduces statistical reliability, especially for cross-demographic breakdowns.

---

The Bottom Line#

Asking ~500 people to guess the inflation rate is a poor way to do math. It is a powerful way to measure economic fear and confidence. The data's value lies not in its precision but in its reflection of consumer psychology — which directly drives spending behaviour.

This is why a Michigan Consumer Sentiment reading plunging to record lows — even when hard data like unemployment and stock prices look strong — acts as a highly accurate leading indicator that consumer spending is about to weaken. Consumers spend based on their feelings about their own purchasing power, not based on Wall Street's data.

---

Related Notes#

• Michigan Consumer Sentiment — the headline confidence index
• Michigan 1-Year Inflation Expectations — short-run price expectations
• Michigan 5-Year Inflation Expectations — long-run anchoring indicator