British economist ALFRED MARSHALL (1842-1924) was one of the most prominent thinkers of his age, and his work influenced half a century of financial philosophy. Though the bulk of his work was completed before the turn of the 20th century, the global ramifications of World War I prompted him to reconsider his theories on international economics, and in 1919 he published the two-volume Industry and Trade. Here, in Volume II, he discusses.. how monopolies and competition impact prices. trusts and cartels in the American and German economies. the decline of class differences and advantages in industrial systems. unions, co-opts, and business federations. and much more.