Definicija: Any market imperfection, but especially the complete absence of a market due to incomplete or asymmetric information.
Vir definicije: Deardorff's Glossary of International Economics
Vir - besedilo: Program spodbujanja internacionalizacije 2015 -2020, maj 2015, Izvozno okno
Opomba: where the market mechanism fails to allocate resources efficiently; see market imperfection