Purpose – It has been suggested that the future success of non-profit organizations lies in ensuring the sustainable involvement of the Millennial generation through social network sites. Facebook is a social media (SM) network that creates new research contexts and methodologies in service...

This paper applies a game theory approach to examine the effects of a market structure change in options trading from a monopoly to a Cournot-type oligopoly that occurred in two successive periods on the Montreal exchange. We analyze the intra-day behaviour of option bid-ask spreads and find...