Central bank also downgraded its global growth forecast to 3%
Fed chair says trade tensions and slowing global growth have weighed on the economy
Upcoming Fed decision will carry considerable weight
Financial firms summarize the outlook for stocks, bonds and global growth
Economic optimism increased in the second quarter
Growth topped expectations
New report looks at the country's economic risks
65% of survey respondents believe the next Fed move will be a rate cut
Economic trends indicate there could be additional causes for concern
Economists were expecting a deficit of $2.8 billion