Fundamentally large corporations have access to credit that smaller corporations do not. When that fails, it should be time to dis-invest. However we find instead that they quickly lobby for cash and incentives that will sustain them. This breeds dinosaurs.
I am a firm supporter of providing credit as far down the food chain as is practical and micro finance shows us just how deep that really is.
Better yet, if government finance and support were blocked after a set ceiling of perhaps ten percent of any given industry or the largest competitor we would create an incentive preventing financial gigantism rather that a perverse system in which govern met incentives actually promote consolidation and job losses.