My name is Carlos and … Chile ?

1.  examples of special fares  are excursion fares, advance purchase, insentive, affinity and non-affinity  group fares, individual and group inclusive tour fares, youth, family,  military, pilgrim, local resident, student and teacher fares, etc, aren't they?   2/  are the most  widely available of these special fares excursion fares, which aregenerally only restricted with respect to their validity in time? 3/   what may be  quoted on a given route? 4/ should it always be designed to fill otherwise empty or full  seats on say low density days or hours in the day, where the scheduled flight  needs a boost? 5/  why  must one be able to determine the objective and properly  estimate the results? **********************************1/  there are no formal carrier  mechanisms for negotiating non-scheduled tariffs, prices generally being  proposed by individual carriers for government approval, aren't there?   2/  do international associations  of non-scheduled carriers play a role in influencing government policy  regarding non-scheduled tariffs? 3/  do international or local  associations  of non-scheduled carriers play a role in influencing government policy  regarding non-scheduled tariffs? 4/ what  organizations are  engaged in monitoring tariff developments and in coordinating government tariff  policies. 5/  what carriers play a role in influencing government policy  regarding non-scheduled tariffs?