Its the reason people created futures markets. Producers want price stability to hedge in the event of a crash so they can pay their workers in 6 months. Purchasers want price stability in the event of a shortage so they can still purchase inputs and keep their business running in 6 months. People who have information related to future price swings can make a profit by purchasing futures contracts. Producers and purchasers then learn about this when the price of the contract changes.