This book deals with the determination of the portion of net income attributable to a state in which a business firm engaging in interstate commerce is located. It studies this problem as it relates to mercantile and manufacturing corporations and refers particularly to North Carolina, which recently revised its method of apportionment. Originally published in 1962. 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.