“…These studies focus either on the demand side (Kennedy and Deegan, 2001;Lim and McAleer, 2001;Lundtorp et al, 2001;Koenig and Bischoff, 2003;Rosselló Nadal et al, 2004) or on the supply side (Krakover, 2000;Flognfeldt, 2001;Jeffrey and Barden, 2001;Capó Parrilla et al, 2007). Usually, it is assumed that there are eight main reasons for seasonality : natural (associated with climate and seasons of the year); institutional (linked to cultural and religious factors); social pressure and fashion; a sporting season; inertia and tradition; business customs; calendar effects (number of weekends, official holidays); and supply constraints.…”