Multifactor
productivity measures the changes in output
per unit of combined input and is a measure of the efficiency
with which inputs are utilized.
Inputs include labor, capital services, and intermediate
purchases. Examples of nonlabor inputs
include rail cars and airplanes, as well as fuel.
NOTES: Source data are indexes with base years of
1997 (air), 2000 (business), and 1997 (rail).
The Bureau of Transportation Statistics reindexed these data so that
1995 is the base year for all.
SOURCE: U.S. Department of Labor,
Bureau of Labor Statistics, available at http://www.bls.gov/, Productivity
& Technology as of July 2007.
