The unadjusted data shows an 8.0 percent decline in March following a 1.1 percent decline in February and a 1.2 percent gain in January. The unadjusted decline in March is the largest in the post-World War II period. The diffusion index slumped to 27 percent in March. The diffusion index marks the number of positive contributors relative to the total number of indicators monitored. The CAB reading for February was revised downward by 1.13 points and that for January was revised downward by 0.38 points.
A Possible Recession
"The CAB signals recessionary conditions in US commerce," said Kevin Swift, chief economist at ACC. "ACC believes a recession to be occurring when the barometer declines for three consecutive months and falls 3.0 percent or more from the peak. As of March, the CAB has declined for two straight months and fallen 8.9 percent from the peak."
The CAB has four main components, each consisting of a variety of indicators: production; equity prices; product prices; and inventories and other indicators.
Production-related indicators generally declined in March. Trends in construction-related resins, pigments and related performance chemistry were generally negative. Plastic resins used in packaging and for consumer and institutional applications were generally negative. Performance chemistry was negative and US exports were weak. Equity prices collapsed, but are improving this week. Product and input prices declined. Inventory and other supply chain indicators were negative.
How The Barometer Works
The CAB is derived from a composite index of chemical industry activity. Due to its early position in the supply chain, chemical industry activity has been found to consistently lead the US economy's business cycle, and this barometer can be used to determine turning points and likely trends in the broader economy. Month-to-month movements can be volatile, so a three-month moving average of the CAB reading is provided. This provides a more consistent and illustrative picture of national economic trends.
Applying the CAB back to 1912, it has been shown to provide a lead of two to 14 months, with an average lead of eight months at cycle peaks as determined by the National Bureau of Economic Research. The median lead was also eight months. At business cycle troughs, the CAB leads by one to seven months, with an average lead of four months. The median lead was three months. The CAB is rebased to the average lead (in months) of an average 100 in the base year (the year 2012 was used) of a reference time series. The latter is the Federal Reserve's Industrial Production Index.
The CAB comprises indicators relating to the production of chlorine and other alkalies, pigments, plastic resins and other selected basic industrial chemicals; chemical company stock data; hours worked in chemicals; publicly sourced, chemical price information; end-use (or customer) industry sales-to-inventories; and several broader leading economic measures (building permits and new orders). Each month, ACC provides a barometer number reflecting activity data for the current month, as well as a three-month moving average.
Current-month, unadjusted readings of the CAB are based on high-frequency weekly and daily data. For example, ACC uses equity data as of the Thursday before the release date. Using mid-month data can lead to large revisions if conditions appreciably change in the second half of the month. ACC has moved the release dates for the CAB to the last Tuesday of the month to minimize the revisions.
Find the full data set here.