21.   America, long the landscape of fixed prices, is turning negotiable.

22.   An option entitles the holder to buy a stock at a fixed price at a preset date in the future.

23.   Asda has led a campaign to end fixed prices.

24.   At Fleur de Lys, Keller offers both a fixed price and an a la carte menu.

25.   Autonation sells used cars at fixed prices and has said that it will gradually move its new-car dealerships toward the same policy.

26.   Because currencies were no longer pegged to the fixed price of gold, it became harder to exchange one currency for another.

27.   Belgium, Italy, Portugal and Greece are either contemplating the introduction of fixed prices for books or strengthening their existing restrictions.

28.   A call option gives the purchaser the right, but not an obligation, to buy Australian dollars at a fixed price by a pre-set date.

29.   A put is an option to sell a stock at a fixed price, while a call gives an investor the right to buy at a set price.

30.   A stock option gives a worker the right to buy a given number of shares, at a fixed price, for a stated number of years.