Answer: leading indicator showing that economic activity is going to increase
Step-by-step explanation:
From the question, we are informed that a review of major newspapers across the United States showed that "help wanted" advertisement lineage has been decreasing.
This simply means that there's going to be an increase in the economic activity. This is due to the reduction in "help wanted" as it seems many individuals can now meet their needs. This will have a positive effect on the economy.