FedEx Raises Forecast, Stock Climbs  NEW YORK (Reuters) - FedEx Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=FDX.N target=/stocks/quickinfo/fullquote"&gt;FDX.N&lt;/A&gt; on Monday raised  its earnings forecast for the fiscal first quarter and full  year due to strong demand in several of its businesses despite  concerns about the slowing growth in the U.S. economy.