The U.S. economy expanded at a modest-to-moderate pace from early January through mid-February, the Federal Reserve said on Wednesday, although firms were less optimistic amid some uncertainty about the Trump administration’s fiscal policies. “Businesses were generally optimistic about the near-term outlook but to a somewhat lesser degree than in the prior report,” the U.S. central bank said in its Beige Book survey on the economy, which was collated from anecdotal evidence provided by business contacts across the country.