I learned a new word today: monopsony. It is the situation where there is only one buyer of something in a market and many sellers. It was used in a story about Wal-Mart dictating what kind of content is, and is not, allowed in Hollywood movies because they are such a huge purchaser of DVD's. The writer said that Wal-Mart is a near monopsony. In monopsonies the price of the product eventually gets reduced to almost the cost of production.