The Secrets of Economic Indicators
Bernard Baumohl · 2005 · 401 pages
A field manual for reading government and private economic releases, not a trading strategy. Baumohl, a former TIME economics reporter, walks through what each report measures, how it is computed, and how bonds, stocks, and the dollar have historically reacted to it.
The one idea
The book's premise is that dozens of economic reports come out every week and almost nobody outside the Federal Reserve reads the underlying tables. Baumohl picks roughly 30 U.S. indicators and covers each one in the same five-part format: why it matters, how the government or private group actually calculates it, which specific tables inside the release carry the real signal, and how bonds, stocks, and the dollar tend to move on the news.
The value is in the mechanics most investors never see. He explains that the monthly jobs report is really two separate surveys (household and establishment) that can conflict in the same month, that the ISM Purchasing Managers Index is a diffusion index built from percentages of survey respondents rather than a level of output, and that the Conference Board's Leading Economic Indicators have to estimate three of their ten inputs before the release date because the source data isn't out yet.
There is no trading system here. Baumohl tells you what a number means and how markets have historically priced it, then stops. What you do with that is left entirely to the reader.
What it actually teaches
The book is not sequential, but four recurring pieces of the framework carry most of the practical value.
READ THE YIELD CURVE FIRST
Baumohl calls it the single most accurate forecasting indicator in the book. Plot yields from the 3-month bill out to the 30-year bond. A normal curve runs about 2.5 percentage points between the 3-month bill and the 30-year bond. Per a New York Fed study he cites, when the 10-year yield sits more than 1.2 points above the 3-month bill, recession odds are under 5%. When the curve flattens to roughly equal yields, that jumps to 50%. When it inverts so the 3-month bill yields more than 2.4 points above the 10-year, the odds run about 90% within 18 months. Every U.S. recession since 1960 was preceded by an inverted curve.
TREAT THE ISM MANUFACTURING PMI AS A THRESHOLD GAUGE, NOT A LEVEL
The Purchasing Managers Index is a diffusion index built from five weighted components (new orders 30%, production 25%, employment 20%, supplier deliveries 15%, inventories 10%). A reading of 50 means no change. Baumohl's rule of thumb: above 50, manufacturing and the broader economy are both expanding. Between 43 and 50, manufacturing is contracting but the economy may still grow. Sustained readings below 43 point to recession in both. A PMI of 50 corresponds to roughly 2.5% real GDP growth, and each full point above 50 adds about 0.3 points of annualized growth, in his estimate.
GO PAST THE HEADLINE UNEMPLOYMENT RATE
The monthly jobs report bundles two separate surveys. The household survey (60,000 homes, about 95% response rate) produces the unemployment rate and can diverge from the establishment survey (400,000 businesses), which produces the non-farm payrolls number markets actually trade on. Watch average weekly hours in manufacturing: readings below 41 signal a struggling economy, 41.5 and above signals acceleration, with sustained overtime above 4.5 hours a precursor to new hiring. First-time jobless claims above 400,000 for several weeks signals recession risk; below 350,000 is needed for payrolls to show real strength.
USE THE LEADING INDEX WITH ITS REVISED RULE, NOT THE OLD ONE
The Conference Board's Leading Economic Indicators combine ten components, the largest weights being the 10-year Treasury minus fed funds spread (33%) and real M2 money supply (27.7%). The old rule of thumb, three straight monthly declines signals recession in three to nine months, was abandoned because the Conference Board found the LEI has historically turned down anywhere from two to twenty months before a recession. Their replacement rule: a decline of more than 2% over six months, with a majority of the ten components falling, is a more reliable signal, though by the time six months of data confirms it the recession may already be underway.
What it looks like Monday morning
A reader who works through this book stops treating economic releases as a single number to react to. Before the next jobs report, they know to check average weekly hours and the four-week moving average of jobless claims, not just the headline unemployment rate, and to separate the household survey number from the establishment survey number instead of averaging two things that measure different populations.
The more durable habit is checking the yield curve's shape on any day, since it needs no monthly release, and reading the ISM PMI against the 43/50/60 thresholds Baumohl lays out instead of just noting whether it went up or down from last month. None of this produces a trade signal by itself. It produces a reader who can tell the difference between noise and a real regime change in an economic release.
| PMI reading | What it means |
|---|---|
| Above 50 | Manufacturing and the broader economy are both expanding |
| 43 to 50 | Manufacturing is contracting, but the economy may still be growing |
| Below 43, sustained | Both manufacturing and the economy are likely in recession; raises odds the Fed cuts rates |
| Above 60 for 3-6 months | Risk of overheating; can prompt the Fed to raise rates if unemployment is also low |
A PMI of 50 corresponds to roughly 2.5% real GDP growth in Baumohl's estimate, with each point above 50 adding about 0.3 points of annualized growth.
Only one indicator stands above all others in terms of accuracy: the yield curve.Bernard Baumohl, The Secrets of Economic Indicators
Where it fails
- It is an encyclopedia, not a strategy. Every indicator gets the same five-part treatment (why it matters, how it's computed, what the tables show, how bonds/stocks/dollar react) but there is no entry, exit, position size, or backtest anywhere in the book. Baumohl tells you what a number has historically meant; turning that into a tradeable rule is left entirely to the reader.
- The rate-regime numbers are pre-2008 and don't hold in a zero-rate or QE world. The book's yield curve thresholds (normal spread near 2.5 points, recession odds tied to the 10-year minus 3-month spread) and the LEI's 27.7% weighting on real M2 money supply were built for a normal-rate environment. After 2008's zero interest rate policy and multiple rounds of quantitative easing, both the shape of a normal curve and the relationship between M2 growth and economic activity changed in ways this 2005 edition has no way to address.
- The LEI's own components have since been overhauled by the Conference Board. The book documents that the Conference Board already once replaced the government's original leading-index formula (bought from Commerce in 1995) to cut false signals. It has revised the index's components again since this book's 2005 printing, so a reader relying on the specific ten inputs and weights listed here (M2 at 27.7%, the rate spread at 33%) is working from a formula the Conference Board itself has since changed.
- Several of the named data sources and web addresses no longer function as described. The book directs readers to the Cambridge Consumer Credit Index, subscription-only Challenger Gray & Christmas layoff data, and specific BLS and Conference Board URLs current as of 2004. Some of these sources have since been discontinued, changed distribution models, or moved. The book itself notes the ISM only recently renamed itself from the National Association of Purchasing Managers in January 2002, a reminder that even the institutions covered here don't stay fixed.
- It assumes you already read the raw government releases, not just headlines. Baumohl's real value, pointing to specific tables like Table A-12's alternative unemployment measures or the ISM's supplier-deliveries sub-index, only pays off if the reader actually pulls up the BLS or ISM PDF release each month and cross-references the tables he cites. A reader who only follows financial news headlines gets none of the edge the book is built around.
- The market-reaction sections are generic rules of thumb, not conditioned on today's environment. Baumohl repeatedly qualifies bond, stock, and dollar reactions with 'it depends on where the economy is in the business cycle,' which is honest but means the market-impact sections function as a menu of possible outcomes rather than a specific forecast. A reader expecting a clean if-this-then-that trading rule for any given release will not find one.
Who it is for
Buy it if
You want a plain-English reference for what the jobs report, ISM, GDP, CPI, and yield curve actually measure and how each is computed, so you can read the raw release yourself instead of waiting for a headline to tell you what it means.
Skip it if
You're looking for a trading system, backtested rules, or anything with an entry and exit. This is a glossary of indicators with historical color, not a method, and its rate-environment numbers predate the post-2008 policy era.
As an Amazon Associate I earn from qualifying purchases. It costs you nothing extra, and it does not change what gets recommended or what the verdict says.