This study is an analysis of the causes of depression in a basic industry. The problems go deeper than poor management or exploitation. This volume examines the structure of the industry and shows why chronic depression will be practically inevitable in a large part of the industry until certain evils such as speculation are corrected. Originally published in 1930. A UNC Press Enduring Edition -- UNC Press Enduring Editions use the latest in digital technology to make available again books from our distinguished backlist that were previously out of print. These editions are published unaltered from the original, and are presented in affordable paperback formats, bringing readers both historical and cultural value.