Federal Reserve Economic Data

The FRED® Blog

The PPI

The producer price index (PPI) is one of the oldest continuously recorded statistics in the United States. While the better-known consumer price index (CPI) computes the price of a basket of consumer goods in retail stores, the PPI looks at raw materials, intermediate goods, and goods ready to be shipped. In fact, it was previously known as the wholesale price index (WPI). FRED offers the PPI in all sorts of decompositions, over 10,000 series in total.

In the graph, we compare the CPI with the PPI. Notice that the PPI appears to be more volatile, at least in recent years, and the two indexes tracked each other much better before the 1980s than since. In particular, the PPI has increased much less than the CPI and has seen some dramatic drops.

How this graph was created: Search for PPI, and the index for all commodities will likely be your first choice. Add that series to the graph. Then add the CPI by searching for it in the “Graph” tab through the “Add Data Series” panel.

Suggested by Christian Zimmermann

View on FRED, series used in this post: CPIAUCSL, PPIACO

SNAP!

FRED recently added SNAP data. SNAP stands for “Supplemental Nutrition Assistance Program”—more commonly referred to as food stamps. FRED has data at the state and county level on the number of benefit recipients for the past 30 years or so. In the graph here, we chose five states with similar population size. A few points stand out: 1) It’s remarkable how little the state rankings have changed over the years. The rise of Arizona is likely due to a relative population increase. 2) Apparent seasonal fluctuations in some states disappear after a few years. 3) Since 2000, the numbers of recipients has more than doubled; in Massachusetts, it quadrupled. This rise has occurred through both booms and recessions and cannot be explained by population increases.

How this graph was created: Search for SNAP, then restrict the results by selecting the “monthly” and “states” tags in the sidebar. Then choose your states and click “Add to Graph.”

Suggested by Christian Zimmermann

View on FRED, series used in this post: BRAZ04M647NCEN, BRIN18M647NCEN, BRMA25M647NCEN, BRTN47M647NCEN, BRWA53M647NCEN

The demographics of the labor force participation rate

There is much lamenting about the decline in the labor force participation rate. As we recently discussed on this blog, while the rate decreased quickly during the previous recession and its recovery, the overall decline began several years before. This decline indicates there must be more than cyclical or even policy-related forces at work. One likely candidate is demographics. In the graph above, the proportion of the U.S. population 25 to 54 years of age follows a pattern similar to that of the labor force participation rate over the past 10 years. Why look at this 25-54 age range? Because this group has the highest labor force participation rate. So, if the share of this age group is declining, the aggregate labor force participation rate is likely to decline as well.

How this graph was created: For the first line, search for “population 25-54” and select “Civilian noninstitutional population—25-54 years.” To create the ratio, add the “Civilian noninstitutional population” series via the “Add Data Series” option: When you add this series, be sure to select “Modify existing series” for series 1. Then use the “Create your own data transformation” option using the formula a/b*100 so that the result is expressed in percentages. For the second line, simply add the civilian labor force participation rate as series 2.

Suggested by Christian Zimmermann

View on FRED, series used in this post: CIVPART, CNP16OV, LNU00000060


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