In a more general setting than has been considered hitherto, this pape
r examines how the incumbent in a market threatened by entry can explo
it its first-mover advantage by licensing its technology not to a pote
ntial entrant but to firms that would have remained outside the indust
ry. It is shown, among other things, that the incumbent may subsidize
the variable costs of its licensees in order to deter entry. Even when
entry is not deterred, it is demonstrated that the incumbent might op
t to invite outsiders as licensees.