Trade involves the transfer of goods or services from one person or entity to another, often in exchange for money. A system or network that allows trade is called a market.
Managers are to information as alcoholics are to booze. They consume enormous amounts, constantly crave more, but have great difficulty in digesting their existing intake.
Robert Heller (1975) "Research in light of a dark tunnel" Audit AGB research. London, Spring 1973