A study by the Rand Corporation found that "a doubling in the number of [nuclear] reactors [built by an architect-engineer] results in a 5% reduction in both construction time and capital cost".
Specifically, Mayo brings up the reduction in Citi’s capital expenditures from a range of $3 billion to $4 billion in 2004 to 2007 to $2 billion in 2008 and $1 billion in 2009.
For example, the reductionof pre-export finance lines for able exporters translates into no working capital, and without it, you can't operate. You can't pay for labor, supplies, or energy.