price <ship> {<price-per-ton>}
price <sector> <what> {<new-price-per-unit>}
    set the sale price on a ship or on the goods at an exchange. Each ship
    for sale will be a new lot, and each exchange with things for sale will
    be a new lot. Your offering will be visible on the trade report, and is
    open to anybody you are allied or neutral towards. Purchasers may buy
    however much they want of whatever is offered at your exchange.
Doc: economics
Help: buy, report
