Staffing prices jumped in April. The U.S. producer price index for employment services rose by 1.7 percent on a year-over-year basis — its largest such increase since December 2010, according to preliminary data from the U.S. Bureau of Labor Statistics that was not seasonally adjusted.

Producer price indexes track the change in price received by service producers over time. The change in price is measured from the perspective of the seller, in this case staffing firms.

The employment services industry includes employment placement agencies, temporary help services, executive search services and professional employer organizations.

Employment services is just one industry tracked by the producer price indexes.

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