Economists consider its findings to be an early indicator of the previous month's economic performance.
He said those categories are early indicators of the national spending mood.
Bread is another early indicator of things to come.
The concern over the water supply is one early indicator of how people are already beginning to get ready for Y2K.
One early indicator that this approach would work well in schools came from a 1979 study of a national sample of 2,384 high school students.
The purchasing managers' report is considered an early indicator of how the economy performed in the previous month.
Both conditions are considered very early indicators of potential heart problems.
The tests are an early indicator as to whether a student in fourth grade needs help with basic reading and math skills.
Economists use the report, along with other early indicators, to gauge the nation's economic activity.
Experience shows that cars are an early indicator of economic trends.
