Service sector activity "was lackluster in August," according to the Federal Reserve Bank of Richmond service-sector activity survey, released Tuesday.

Overall, the service sector revenues index improved to negative 6 in August, from negative 11 in July, while the number of employees index reversed to positive 4 from negative 3, the average wage index rose to 10 8 from 8, and the expected product demand during the next six months index grew to 7 from 4.

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