First, there always seemed to be a few disputes over transfer prices of parts sold by the product divisions to the AM division. Whenever possible, by corporate policy, internal sales of parts were made at outside OEM market prices. If a part had been sold an OEM part several years earlier, the original OEM market price was adjusted upward for inflation to arrive at the sales price to the AM division. This procedure caused virtually no disputes. Problems occurred when the part being transferred was strictly an AM division part. That is, it was a part never sold by Abrams in the OEM market and for which there neither a current OEM outside market price nor a former OEM market price that could be adjusted for inflation. Usually, such transfer price issues were resolved by the two divisions involved, but occasionally the vice president of finance was asked to arbitrate a dispute.