EXCERPTS:
"Corporate America's cash pile has hit its highest level in half a century. 
Rather than pouring their money into building plants or hiring  workers, nonfinancial companies in the U.S. were sitting on $1.93  trillion in cash and other liquid assets at the end of September, up  from $1.8 trillion at the end of June, the Federal Reserve said  Thursday. Cash accounted for 7.4% of the companies' total assets—the  largest share since 1959.
The cash buildup shows the deep caution many companies feel about  investing in expansion while the economic recovery remains painfully  slow and high unemployment and battered household finances continue to  limit consumers' ability to spend.
***
In one bright sign, the Fed's data show that the net worth of U.S.  households increased to $54.9 trillion in the third quarter, up from  $53.7 trillion in the second quarter, as rising stock-market wealth more  than offset declining home values. 
That was still well below the second-quarter 2007 peak of $65.7  trillion. After-tax household income rose to an annualized $11.42  trillion from $11.37 trillion in the second quarter. 
The cash pooling up at companies has the potential to help the  economy grow more vigorously and bring unemployment lower—if they start  spending it on new plants, equipment and employees. 
But in the wake of the worst economic downturn since the 1930s,  companies are hesitating to make that shift, said Brian Bethune,  economist at IHS Global Insight.
 
