Temporary market organized to promote trade, where buyers and sellers gather to transact business. Trade fairs are organized at regular intervals, generally at the same location and time of year. They are especially common in Europe and Asia, where nearly every country has at least one major annual international exposition. They range in scope from those dealing with one industry or branch of industrial production to general exhibits of goods and merchandise. Trade shows and conventions confined to a single industry or even to a specialized segment of an industry have become increasingly common.