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Economists forecast that the purchasing manager's index (PMI) rose in December to 55.2 from 54.6, according to Bloomberg. A PMI reading above 50 would show continued expansion in the most active part of the US economy.
Some companies told Markit last month that their clients were more willing to spend post-election, as a lot of the uncertainty had lifted.
Service providers said they hired more workers in November, although the pace of job creation was weaker than the post-recession average rate. They remained optimistic about the economy's growth prospects over the next year.