Nearly three out of four (74 percent) of financial journalists are bullish on the economy, according to poll of more than 400 US-based reporters conducted by Gorkana Group and DuPaul University professors Matt Ragas and Hai Tran.

A similar poll conducted in 2014 found only 45 percent of financial journalists surveyed had a positive outlook for the economy for the next year. Only 18 percent were positive in the 2012 survey.

"After so much bad news, it is significant that financial journalists, who do so much to shape perceptions of the economy and have the benefit of talking to a broad range of informed commentators and business leaders, have a broadly positive outlook for the economy and sector," said a statement from Jeni Chapman, US managing director of UK-headquartered Gorkana.

The survey shows that credibility of key sources has improved. CEO credibility, for instance, rose 10 points to 61 percent from 2012.

The public relations business though falls short in the credibility department as only 13.1 percent of the respondents found PR people to be "highly credibility sources."

That's a credibility dip from13.9 percent and 14.8 percent, respectively, during the past two surveys.

PR is once again last in the credibility rating in the nine sources ranked. It trails non-governmental organization sources at 17.7 percent.

Gorkana also gauged feedback from journalists about how PR people can bolster relationships with the press.

"Always tell the truth" topped the list at 90.1 percent. "Develop better understanding of beats" ranked next at 88.1 percent.

"Develop greater knowledge of subjects, companies and industries" (84.2 percent), "provide better access" (83.1 percent), "pitch ideas that are newsworthy and leverage news trends" (76.2 percent) and "be more responsive" (71.2 percent) followed.