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

Overall, the service sector revenues index soared to positive 13 in January, from negative 2 in December, while the number of employees index increased to zero from negative 12, the average wage index climbed to 7 from 5, and the expected product demand during the next six months index rose to 10 from zero.

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