Preliminary Economic Studies of the War: Direct and Indirect Costs of the Great World War is a book written by David Kinley in 1920. The book delves into the economic impact of World War I, specifically the costs incurred by various countries involved in the war. Kinley discusses the direct costs of the war, such as military spending, as well as indirect costs, such as lost productivity and the impact on international trade. He also analyzes the economic...