Bureau of Economic Analysis
Responsible for the wealth accounts, which show the business and other components of national wealth; the input-output accounts, which trace the interrelationships among industrial markets; personal income and related economic series by geographic area; and the U.S. balance of payments accounts and associated foreign investment accounts. Responsible for the preparation, development, and interpretation of the National Income and Product Accounts, summarized by the Gross Domestic Product (GDP).
(BEA) Dept of Commerce