Action - When an elite band of private mercenaries known as Black Knight gets caught behind enemy lines in a Middle East combat zone, their only hope for survival lies with the team leader, who has escaped but vows to return. - Salman Bokhari, Steven Dell, Eric Roberts
The three-sector model in economics divides economies into three sectors of activity: extraction of raw materials (primary), manufacturing (secondary), and service industries which exist to facilitate the transport, distribution and sale of goods produced in the secondary sector (tertiary). The model was developed by Allan Fisher, Colin Clark, and Jean Fourastié in the first half of the 20th century, and is a representation of an industrial economy. It has been criticised as inappropriate as a representation of the economy in the 21st century.
