buy
Purchase commodities from the world market
market
Report current selling prices in the world market
reset
Reset the price of a product on the market
sell
Sell commodities on the world market
set
Establish price for a ship, plane, land unit or nuke
trade
Buy ships, planes, land units or nukes
For info on a particular topic, type "info <topic>" where <topic> is one of the topics listed above.