No store squeezes their suppliers like Walmart does. A small candy company in my area was put into bankruptcy by Walmart. They would place huge orders contingent on deep discounts and then string the payment out for a up to a year. The company just couldn't carry that expenditure for that amount of time. Their employees needed their paychecks now. Their suppliers need paid now. Walmart does this with all it's suppliers. Even Scott Paper, a huge corporation, gets squeezed by Walmart. This is what evolving monopolies cause.