Hilsenrath cites Robert Hall, a Stanford University professor whose research shows three fourths of American households do not have two months worth of income put away as cash or other liquid assets. The Federal Reserve researcher Karen Pence says 41% of households can borrow less than $3000 on their credit cards and 23% have been turned down or discouraged from applying for credit. This shows the general financial weakness of overly indebted American households and the overlayed effects of the housing crisis, and higher unemployment. It suggests the margin for consumers to weather difficulties and increase spending is thin.