The Employment Cost Index (ECI) measures quarterly change in hourly labor cost to employers in the United States. It is published by the Bureau of Labor Statistics (BLS), a United States labor agency, as a Principal Federal Economic Indicator. It comes from the National Compensation Survey (NCS), an employer pay survey, and tracks a fixed basket of jobs. The basket holds occupation and industry mix constant for pure cost change, free from employment shifts.
Coverage spans private industry and state and local government workers nationally, excluding federal and self employed workers. Agriculture, private households, volunteers, unpaid workers and workers abroad sit outside scope, with no state index produced. Results appear as an index with base value 100, plus 3-month and 12-month percent changes in nominal and inflation adjusted terms. An index value of 110 means a 10% rise since the base period, so change reads as percent, not points.
It is not average earnings, not a consumer price gauge such as the Consumer Price Index (CPI), and not dollar pay levels. Dollar levels with moving weights sit in a separate Employer Costs for Employee Compensation (ECEC) release.