In marketing strategy, first-mover advantage (FMA) is the advantage gained by the initial ('first-moving') significant occupant of a market segment. First-mover advantage may be gained by technological leadership, or early purchase of resources.Vulnerability of the first-mover is often enhanced by 'incumbent inertia'. Such inertia can have several root causes: In marketing strategy, first-mover advantage (FMA) is the advantage gained by the initial ('first-moving') significant occupant of a market segment. First-mover advantage may be gained by technological leadership, or early purchase of resources. A market participant has first-mover advantage if it is the first entrant and gains a competitive advantage through control of resources. With this advantage, first-movers can be rewarded with huge profit margins and a monopoly-like status.