There is no single thermometer for the economy. Central bankers, traders, and economists triangulate across dozens of data series, looking for a pattern that holds up across different measurement approaches. The practice is less like reading a speedometer and more like reading weather radar — multiple signals, each imperfect, each pointing toward a probable direction. This guide focuses on five of the most instructive indicators and, more importantly, how they interact.
The Yield Curve
When investors lend money to the government for ten years, they typically demand a higher interest rate than for a two-year loan — the premium reflects the uncertainty of holding a long-duration claim. The yield-curve inversion signal occurs when that relationship flips: two-year yields rise above ten-year yields. The bond market, in effect, is saying that it expects rates to fall significantly in the future — which happens when the economy slows and the central bank cuts. Every U.S. recession in the modern era was preceded by an inversion. The signal is reliable but slow; recessions typically arrive six to twenty-four months after the inversion begins.
Labour Force Participation
The unemployment rate counts people who are looking for work but cannot find it. It misses people who have given up looking. The labor force participation rate captures both groups — it is the share of the working-age population that is either employed or actively searching. When participation is low, even a falling unemployment rate may not represent a genuinely healthy labour market. The post-2020 participation recovery was incomplete for years, which complicated the interpretation of headline employment figures throughout that period.
Wage Growth Expectations
Wages are not just an economic outcome; they are a signal. How fast workers expect pay to rise feeds directly into their spending decisions and into businesses' pricing decisions. When workers expect significant pay increases, they negotiate harder and accept fewer concessions. When businesses expect to pay more, they price it into their products. The result can be a wage-price feedback loop that embeds inflation into the economy's behaviour even after the initial shock has passed. This makes wage expectations a key variable for central banks setting policy — not just today's wages, but what workers believe wages will do next year.
The labour participation rate and wage expectations are closely linked: when fewer people are available to work, individual workers have more bargaining leverage, which pushes wage expectations higher. The yield curve then responds to whether the central bank's policy rate appears adequate to cool that dynamic.
Labour Productivity
The long-run trajectory of living standards is determined almost entirely by rising labor productivity — output per hour worked. When workers produce more in the same time, businesses can raise wages without raising prices, the real economy expands without inflation, and debt becomes cheaper in relative terms. Productivity growth is difficult to measure in real time but rewrites every other economic relationship in the long run. A period of strong productivity growth, like the late 1990s, can make a tight labour market and rising wages look sustainable rather than inflationary.
The M2 Money Supply
Monetary conditions set the liquid backdrop for everything else. The M2 measure — currency in circulation plus checking accounts, savings accounts, and money market funds — captures how much purchasing power is available in the economy. When M2 grows rapidly, spending capacity increases faster than the supply of goods and services can expand, creating inflationary pressure. The 2020–2021 M2 surge was the fastest in decades; the inflation that followed in 2022 was the sharpest in forty years. The relationship is not mechanical — velocity of money also matters — but M2 is a leading indicator that rewards close attention.
Together, these five signals — the yield curve, participation, wage expectations, productivity, and M2 — form a cross-check system. When they all point in the same direction, confidence in the economic outlook is warranted. When they diverge, that disagreement is itself informative. Learning to read them is the foundation of informed economic literacy.