BEA Industry Economic AccountsThe BEA (Bureau of Economic Analysis) Industry Economic Accounts "show how industries provide input to, and use output from, each other to produce gross domestic product. These accounts provide detailed information on the flows of the goods and services that make up the production processes of industries." In addition to the Input-Output (I-O) Accounts, this site also includes reports on Gross Domestic Product by industry, travel and tourism, and transportation.