Optimistic chief executives are paid less than their peers, research by HEC Business School in Paris has found.
Allianz Global Investors has brought its US small cap growth strategy to the UK via the launch of a new fund.
The US market has risen in early trading as investors' positive mood continues following the US jobs report released late last week.
A leading member of the US Federal Reserve has tried to calm markets by stressing plans to start tapering its QE programme depend on the economy recovering.