The International Input–Output Association (IIOA) is a scientific, nonprofit, membership organization to facilitate development of input–output analysis in economics and interdisciplinary areas of inquiry.
Input–output models and analysis in economics were developed by Nobel Laureate Wassily Leontief.
Development includes theoretical advances and improved modeling; empirical applications of input–output models and techniques; and expanded compilation of input–output tables, matrices, and associated accounts, in both national statistical offices and other kinds of venues.
The IIOA was founded in 1988 growing from an informal international network of economists, government officials, engineers, and managers with interests in the analysis of interdependency in economic and other kinds of systems.
IIOA hosts biannual conferences and more frequent meetings on specific topics to facilitate networking among its members and other interested parties.