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August 2013 ISM Manufacturing Survey Again Strengthens

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The ISM Manufacturing survey for August 2013 showed the survey’s expansion strengthened. The New Orders sub-index which historically correlates to the economy showed even a stronger expansion.

The ISM Manufacturing survey index (PMI) rose from 55.4 to 55.7 (50 separates manufacturing contraction and expansion). This was well above expectations which were 53.0 to 53.6.

This index has been in a general downtrend since mid 2011. This is the third month of expansion after four months of decline. All Fed surveys and now the ISM shows manufacturing improved in August (an unusual event).

Relatively deep penetration of this index below 50 has normally resulted in a recession.

The noisy Backlog of Orders rose from 45.0 to 46.5. Backlog growth is an indicator of improving conditions; a number below 50 indicates contraction. Backlog accuracy does not have a high correlation against actual data.

“The PMI™ registered 55.7 percent, an increase of 0.3 percentage point from July’s reading of 55.4 percent. August’s PMI™ reading, the highest of the year, indicates expansion in the manufacturing sector for the third consecutive month. The New Orders Index increased in August by 4.9 percentage points to 63.2 percent, and the Production Index decreased by 2.6 percentage points to 62.4 percent. The Employment Index registered 53.3 percent, a decrease of 1.1 percentage points compared to July’s reading of 54.4 percent. The Prices Index registered 54 percent, increasing 5 percentage points from July, indicating that overall raw materials prices increased when compared to last month. Comments from the panel range from slow to improving business conditions depending upon the industry.”

Of the 18 manufacturing industries, 15 are reporting growth in August in the following order: Textile Mills; Wood Products; Electrical Equipment, Appliances & Components; Food, Beverage & Tobacco Products; Nonmetallic Mineral Products; Plastics & Rubber Products; Computer & Electronic Products; Printing & Related Support Activities; Furniture & Related Products; Primary Metals; Fabricated Metal Products; Transportation Equipment; Machinery; Chemical Products; and Paper Products. The only industry reporting contraction in August is Miscellaneous Manufacturing.

It is interesting to note that ISM Manufacturing represents less than 10% of USA employment, and approximately 20% of the business economy. Historically, it could be argued that the production portion of ISM Manufacturing leads the Fed’s Industrial Production index – however the correlation is not strong when looking at trends.

New orders have direct economic consequences. Expanding new orders is a relatively reliable sign a recession is NOT imminent. However, New Orders contraction have given false recession warnings twice since 2000. This subindex is in a long term downtrend – and remains close to contraction.

However, holding this and other survey’s Econintersect follows accountable for their predictions, the following graph compares the hard data from Industrial Products manufacturing subindex (dark blue bar) and US Census manufacturing shipments (lighter blue bar) to the ISM Manufacturing Survey (pink bar).

Comparing Surveys to Hard Data

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Caveats on the use of ISM Manufacturing Index:

This is a survey, a quantification of opinion – not facts and data. However, as pointed out above, certain elements of this survey have good to excellent correlation to the economy. Surveys lead hard data by weeks to months, and can provide early insight into changing conditions.

Many use ISM manufacturing for guidance in estimating manufacturing employment growth. Econintersect has run correlation coefficients for the ISM manufacturing employment and the BLS manufacturing employment data series above going back to 1988, using quarterly data. The coincident correlations are actually negative, but poor (r = -0.2 to -0.4 for various time periods examined). See here for definitions.

Before 2000 the ISM employment data had a weak positive correlation to the BLS data 4 to 7 quarters later (r values above 0.6). Since 2000 the correlations for ISM manufacturing employment as a leading indicator for the BLS manufacturing employment have been between 0 and 0.3 for r (correlation coefficient). These values define correlations as none to poor.

In other words, ISM employment index is not useful in understanding manufacturing jobs growth. The graph below shows BLS manufacturing employment month-over-month gains against the ISM Manufacturing employment index.

Indexed to Jan 2000 – Comparison of the ISM Manufacturing Employment Subindex (blue line) to BLS Manufacturing Employment (red line) – all data seasonally adjusted

The ISM employment index appears useful in predicting turning points which can lead the BLS data up to one year.

Related Articles

All Articles on Institute of Supply Management Surveys

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